Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:29Z No. of bitstreams: 5 1.pdf: 759671 bytes, checksum: 1f3560e9506658bab885766f9f65fd21 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T14:09:52Z (GMT) No. of bitstreams: 5 1.pdf: 759671 bytes, checksum: 1f3560e9506658bab885766f9f65fd21 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T14:09:52Z (GMT). No. of bitstreams: 5 1.pdf: 759671 bytes, checksum: 1f3560e9506658bab885766f9f65fd21 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2010 / Objetivou-se com este trabalho avaliar os efeitos de diferentes aduba??es de solo e doses de N em cobertura na cultura da alface. O experimento foi realizado no campus JK da UFVJM, em Diamantina/MG, no per?odo compreendido entre junho e setembro de 2008. O delineamento experimental utilizado foi em blocos ao acaso com parcelas subdivididas, com tr?s blocos, cinco aduba??es de solo: NPK+esterco, NPK, esterco, composto org?nico e vermicomposto e cinco doses de N em cobertura, sendo a parcela experimental constitu?da por dezesseis plantas, espa?adas em 0,30 m x 0,30 m. Foram avaliados a massa seca e fresca da parte a?rea, di?metro da cabe?a, n?mero de folhas, altura de plantas, vari?vel can?nica e teores foliares de N, P, K, Ca, MG, S, B, Cu, Fe, Mn e Zn. As vari?veis de produ??o foram afetadas pelo tipo de aduba??o de solo e pelas doses de N aplicadas em cobertura. A aduba??o com esterco foi a que proporcionou os melhores resultados para as caracter?sticas de produ??o avaliadas, seguida das aduba??es com NPK+esterco e vermicomposto. Para o cultivo da alface na regi?o de Diamantina/MG, recomenda-se aplicar 160 kg.ha-1 de N em cobertura. O processo de vermicompostagem reduziu os teores de B, Cu, Fe e Mn na parte a?rea das plantas de alface. Os teores dos nutrientes nas plantas de alface variaram em fun??o da aduba??o de solo e das doses de nitrog?nio em cobertura, o que mostra que, com o aumento das doses de N, houve aumento nos teores foliares dos nutrientes analisados, exceto para o B, Cu e Zn. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2009. / ABSTRACT The objective of this study was to evaluate the effects of different soil fertilization and nitrogen rates in coverage on lettuce cultivation. The experiment was accomplished on JK campus of UFVJM, Diamantina/MG, in the period between June and September of 2008. The experimental design was a randomized block with split plot with three blocks and five fertilization of soil: NPK + manure, fertilizer, manure, organic compost, vermicompost and five doses of nitrogen in coverage, considering that the experimental plot was composed of sixteen plants spaced by 0.30 m x 0.30 m. The dry and fresh weight, head diameter, leaf number, plant height, canonical variable and foliar contents of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn were evaluated. The growth variables were affected by the type of soil fertilization and N rates applied in coverage. The manuring was the one that provided the best results for the evaluated growth features, followed by fertilization with NPK+manure and vermicompost. For the lettuce cultivation in the region of Diamantina/MG, it is recommended to apply 160 kg.ha-1 N in coverage. The vermicomposting process reduced the B, Cu, Fe and Mn content in lettuce weights. The nutrient contents in lettuce plants varied according to soil fertilization and nitrogen dosage in coverage, which shows that with increasing doses of N, there was an increase in the analyzed foliar nutrients, except for the B, Cu and Zn.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:30Z No. of bitstreams: 5 12.pdf: 206095 bytes, checksum: cc4780485101f7822cd4b8735089f132 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T14:43:08Z (GMT) No. of bitstreams: 5 12.pdf: 206095 bytes, checksum: cc4780485101f7822cd4b8735089f132 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T14:43:08Z (GMT). No. of bitstreams: 5 12.pdf: 206095 bytes, checksum: cc4780485101f7822cd4b8735089f132 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2010 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / O trabalho foi realizado com o objetivo de conhecer os efeitos promovidos pelo manejo da aduba??o verde na forma de pr?-cultivo com a crotal?ria, aliado a doses de esterco bovino, no desempenho da cultura do milho. O experimento foi desenvolvido na ?rea da Escola Fam?lia Agr?cola de Virgem da Lapa, no munic?pio de Virgem da Lapa-MG, no per?odo de dezembro de 2008 a junho de 2009. Foi adotado o delineamento experimental de ?blocos ao acaso?, apresentando quatro repeti??es, com os tratamentos correspondendo a pr?-cultivo com crotal?ria e seis doses de esterco bovino e uma testemunha (pousio). A crotal?ria foi usada na forma de pr?-cultivo. Antes da implanta??o do experimento, com a semeadura da crotal?ria, foi feita uma capina manual e efetuada a calagem. Ap?s 99 dias, com a ro?agem da crotal?ria e da vegeta??o espont?nea (pousio), o milho foi implantado. As doses de esterco bovino foram parceladas em 50% no plantio e 50% em cobertura. Quantificou-se a mat?ria fresca e seca (t ha-1) do adubo verde, al?m da composi??o em macronutrientes. Foi estimada a contribui??o da fitomassa de crotal?ria na reten??o da umidade no solo, na temperatura do solo, na capacidade de abafamento da vegeta??o espont?nea, e determinada a composi??o em macronutrientes. A cultura do milho foi colhida em est?gio verde, procedendo-se as avalia??es: n?mero de folhas, altura das plantas e da inser??o da espiga (m), comprimento e di?metro da espiga (cm), acumula??o de mat?ria fresca e seca (t ha-1) nas plantas de milho, gr?os, palha e sabugo do milho, e produtividade (n?mero de espigas ha-1). Foram determinados os teores de macronutrientes e a quantidade acumulada (kg ha-1) na parte a?rea das plantas do milho. A crotal?ria apresentou grande potencial para uso na aduba??o verde, com grande ac?mulo de fitomassa seca e nutrientes. As ?reas cobertas com res?duos de crotal?ria apresentaram maior reten??o de ?gua no solo e redu??o na temperatura ao longo do seu perfil. A presen?a da fitomassa de crotal?ria promoveu redu??o no crescimento de plantas espont?neas, com 76,13% menos massa seca acumulada, durante o ciclo do milho, al?m de mudan?a na composi??o flor?stica das ?reas, com a redu??o do n?mero de esp?cies presentes, em seis esp?cies a menos que no cultivo em solo com pousio. A crotal?ria, independente da dose de esterco aplicada, influenciou o desenvolvimento vegetativo e produtivo do milho, promovendo as maiores alturas de plantas e de inser??o da espiga, maior n?mero de folhas, valores de mat?ria verde e seca para as plantas inteiras, gr?os, palhas da espiga e sabugo. O mesmo foi observado para os par?metros produtivos de di?metro, comprimento e produtividade de espigas de milho em est?dio verde. As plantas de milho crescidas nas ?reas pr?-cultivadas com crotal?ria apresentaram valores superiores quanto aos teores de N e P. De forma geral, a fitomassa da crotal?ria pr?-cultivada ao milho supriu as exig?ncias da cultura, demonstrando o potencial de substitui??o ao uso do esterco bovino, como fertilizante alternativo. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2010. / ABSTRACT This work aimed to identify the effects promoted by the management of green manure in pre-cultivation with C. juncea, using doses of manure, on the performance of corn cultivation. The experiment was carried out at the Agricultural Family School of Virgem da Lapa, in the town of Virgem da Lapa-MG from December, 2008 to June, 2009. A randomized trial of "randomized block", with four replications, with treatments corresponding to pre-cultivation with crotalaria and six doses of manure and a control (resting). The crotalaria was submitted pre-cultivation. Before the implementation of the experiment, with the cultivation of crotalaria, one manual weeding and liming was done. After 99 days, with the rustle of crotalaria and spontaneous vegetation, corn was implanted. The cattle manure were applied with 50% at planting and 50% at coverage. The green manure was quantified in the fresh and dry matter (t ha-1), as well as composition in macronutrients. It was estimated the contribution of crotalaria biomass in moisture retention of soil, soil temperature, the smoother ability of weeds, and determined the composition of macronutrients. The corn crop was harvested in green stage carrying the evaluations: number of leaves, plant height and ear height (m) length and ear diameter (cm), fresh and dry matter accumulation (t ha-1) in corn, beans, starw and cob, and productivity (number of ears ha-1). The contents of macronutrients and accumulation (kg ha-1) in the shoots of maize. The crotalaria showed great potential for green manure, with accumulation of dry weight and nutrients. Areas covered with crotalaria waste showed higher water retention of soil and reduction in temperature along its profile. The presence of the dry mass of crotalaria decreased the growth of weeds with 76.13% less dry mass accumulated during the entire crop cycle, there were changes in floristic composition of the areas and also a reduction in the number of species, with six species less than in the culture of land fallow. The crotalaria, irrespective of the manure dose applied, influenced plant growth and production of corn, promoting the highest plant height and ear height, increased number of leaves, values of fresh and dry mass for whole plants, grain, straw and cob. The same was observed for the production parameters of diameter, length and yield of corn cobs in the green stage. Corn plants grown in areas pre-cultured with crotalaria showed higher values for the levels of N and P. In general, the biomass of crotalaria pre-grown with corn has met the requirements of culture, demonstrating the potential to replace the use of manure as an alternative fertilizer.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:30Z No. of bitstreams: 5 13.pdf: 1722292 bytes, checksum: 827f3e266a1f80f33a48a2f1611ace4f (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 22564 bytes, checksum: ff373f1ad387898ef8ba4f8bc9e37073 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T14:44:51Z (GMT) No. of bitstreams: 5 13.pdf: 1722292 bytes, checksum: 827f3e266a1f80f33a48a2f1611ace4f (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 22564 bytes, checksum: ff373f1ad387898ef8ba4f8bc9e37073 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T14:44:51Z (GMT). No. of bitstreams: 5 13.pdf: 1722292 bytes, checksum: 827f3e266a1f80f33a48a2f1611ace4f (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 22564 bytes, checksum: ff373f1ad387898ef8ba4f8bc9e37073 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2011 / Com o objetivo de investigar a toler?ncia de minicepas clonais de Eucalipto ? eleva??o gradual da salinidade do solo provocada por aplica??o de fertilizantes (aos n?veis de: S1 = 0,5; S2 = 2,5; S3 = 4,5; S4 = 6,5 e S5 = 8,5 dS m-1) e comparar os resultados obtidos com o tratamento operacional de um viveiro de produ??o, avaliou-se caracter?sticas morfol?gicas expressas em fun??o do fator ?doses salinas?, no viveiro clonal de produ??o de mudas florestais da empresa Plantar S.A., no munic?pio de Curvelo M.G. Para tanto, foram conduzidos dois experimentos no segundo semestre de 2007, o primeiro em fase de Jardim clonal, onde foram aplicados as diferentes doses de fertilizantes e extra?das as miniestacas que foram estaqueadas e deram inicio ao segundo experimento, este em fase de enraizamento em casa de vegeta??o e casa de sombra. No experimento I foram avaliados: produ??o de miniestacas, sobreviv?ncia de minicepas, evolu??o da saliniza??o do solo e da solu??o do solo, ac?mulo de nutrientes na solu??o do solo e avalia??o qu?mica das folhas das miniestacas provenientes de cada tratamento. Para a retirada da solu??o do solo, foi utilizado extratores de placa porosa sob suc??o de 80kPa, e efetuado leitura de pH e de condutividade el?trica, no ato da retirada da solu??o, e an?lises qu?micas dos teores de f?sforo, pot?ssio, c?lcio e magn?sio, seguido por an?lises qu?micas foliares de nitrog?nio, f?sforo, pot?ssio, c?lcio, magn?sio, enxofre e boro. Todas estas vari?veis, tanto no experimento I quanto no II, foram analisadas e discutidas em quatro tempos diferentes espa?ados a cada 7 dias. No experimento II, as avalia??es foram de car?ter morfol?gico, visando ? qualidade do enraizamento e a rustifica??o das mudas obtidas ao longo do processo, para tanto foi mensurado a massa seca do sistema radicular (MSR), massa seca da parte a?rea (MSPA), massa seca total (MST) e altura de plantas (H). Aos 28 dias de saliniza??o das U.E. foi constatada uma evolu??o da saliniza??o do solo com ac?mulo de alguns sais pelas plantas, causando significativa mortalidade das minicepas desde a primeira coleta de dados, a produ??o de miniestacas foi influenciada ? partir do 14? dia ap?s o in?cio da saliniza??o das unidades experimentais (U.Es.), no n?vel mais elevado de salinidade. A evolu??o da salinidade e o ac?mulo dos sais pelas plantas, n?o foram determinantes no enraizamento das estacas. ? medida que se elevou o potencial salino no substrato, em fun??o das doses salinas e do tempo, reduziu-se a sobreviv?ncia das minicepas e a produ??o de miniestacas. A taxa de sobreviv?ncia de minicepas foi significativamente comprometida, quando submetida ao potencial salino de 8,5 dS m-1, por 21 dias ininterruptos. Os valores de produ??o de miniestacas e sobreviv?ncia de minicepas, das unidades experimentais, submetidos ?s doses salinas de 0,5 dS m-1 em uma ?nica irriga??o di?ria, se equivaleram aos tratamentos operacionais com 2,0 dS m-1, com nove irriga??es di?rias. As an?lises morfol?gicas n?o se diferenciaram entre os tratamentos salinos. Os dados apresentados foram normalizados seguindo o modelo de Lilliefors e as an?lises de vari?ncia adotadas seguiram o modelo de Tukey, a 5% de probabilidade. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, [2008].

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:31Z No. of bitstreams: 5 15.pdf: 3561769 bytes, checksum: a3a22b8376d871729dbb84e05728a5a0 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T14:53:11Z (GMT) No. of bitstreams: 5 15.pdf: 3561769 bytes, checksum: a3a22b8376d871729dbb84e05728a5a0 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T14:53:11Z (GMT). No. of bitstreams: 5 15.pdf: 3561769 bytes, checksum: a3a22b8376d871729dbb84e05728a5a0 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2010 / Este estudo objetiva avaliar a qualidade das ?guas com base nas condi??es f?sico-qu?micas e nas assembleias zoobent?nicas em um c?rrego chamado ?gua Limpa, localizado no Parque Estadual do Biribiri, Diamantina-MG, no per?odo de mar?o a setembro de 2009. Em um trecho de aproximadamente 4 km, foram escolhidos quatro pontos de coleta, em que as vari?veis f?sico-qu?micas e microbiol?gicas avaliadas foram: temperatura, turbidez, ferro, f?sforo, am?nia, nitrito, nitrato e coliformes fecais. As amostras de ?gua foram coletadas em frascos de vidro, previamente esterilizados, devidamente fechados. Os frascos com as amostras foram mantidos em caixa de isopor com gelo, at? o momento de an?lise. A caracteriza??o, nos diferentes pontos de amostragem, foi realizada de acordo com os limites definidos pela Resolu??o CONAMA 357, de 17 de mar?o de 2005. Para a coleta dos organismos aqu?ticos, cada um dos quatro pontos foi amostrado em tr?s sub?reas replicadas em tr?s pontos distintos, totalizando 144 amostras em duas coletas realizadas em per?odo chuvoso ? mar?o 2009 - e duas em per?odo seco ? agosto 2009. O amostrador utilizado foi um corer de PVC com 3,0 cm de di?metro, por 5 cm de profundidade. As amostras foram colocadas em sacos pl?sticos adicionando-se 500ml de formol a 4% e 125 g de sacarose, etiquetados de acordo com cada ponto de coleta, sub?rea e repeti??o. Os organismos zoobent?nicos foram triados e identificados, com o aux?lio de microsc?pio estereosc?pio e ?ptico, ao menor n?vel taxon?mico poss?vel. As diferen?as nos valores das m?dias dos par?metros f?sico-qu?micos e microbiol?gicos e dos organismos zoobent?nicos obtidas entre pontos e datas de coleta foram testadas estatisticamente atrav?s de an?lise de vari?ncia (ANOVA). Quando a ANOVA mostrou diferen?as significativas ao n?vel de 5%, foi aplicado o Teste Tukey. Foi observado que os pontos 1, 2 e 3 se apresentaram semelhantes quanto ?s condi??es f?sico-qu?micas, por?m, quanto aos coliformes fecais, somente o ponto 1 se enquadrou dentro dos limites permitidos. Os taxons mais expressivos nesses pontos foram Ephemeroptera, Trichoptera e Plecoptera, que s?o mais exigentes quanto ? qualidade ambiental. J? o ponto 4 se destacou com m?dias elevadas de coliformes fecais, f?sforo e turbidez e baixas concentra??es de oxig?nio dissolvido na ?gua. Os grupos resistentes ? elevada contamina??o org?nica foram dominantes nesse local: Oligochaeta, Chironomidae e Hirudinea. O ponto 4 tem contribu?do para a queda da qualidade da ?gua do c?rrego e para agravar processos de eutrofiza??o, extin??o de esp?cies aqu?ticas e veicula??o de doen?as. As assembleias zoobent?nicas mostraram-se eficientes para indicar os n?veis de polui??o existentes no trecho estudado e subsidiar futuros estudos de biomonitoramento. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2010. / ABSTRACT This study aims to evaluate the quality of water based on physical-chemical conditions and in the zoobenthos assemblages in a stream called ?gua Limpa, located in the Parque Estadual do Biribiri, Diamantina-MG in the period from March to September 2009. On a stretch of about 4 km, was chosen four collect points, in that the variable physico-chemical and microbiological parameters were: temperature, turbidity, iron, phosphorus, ammonia, nitrite, nitrate and fecal coliform. The water samples were collected in glass bottles previously sterilized, properly closed. The vials with samples were kept in a Styrofoam box with ice until the time of analysis. The characterization in the different sampling points was conducted in accordance with the limits established by CONAMA Resolution 357 of March 17, 2005. For the collection of aquatic organisms, each of the four points were sampled in three subareas replicated at three different points, totaling 144 samples in two collect carried out in the rainy season - March 2009 - and two in dry season - in August 2009. The sampler used was a PVC corer with 3.0 cm diameter by 5 cm deep. The samples were placed in plastic bags by adding 500ml of 4% formalin and 125 g of sucrose, labeled according to each collection point, subarea and repetition. The zoobenthos organisms were screened and identified with the aid of microscopes and optical at the lowest possible taxonomic level. The differences in mean values of the physical, chemical and microbiological and organisms zoobent?nicos obtained between points and sampling dates were statistically tested using analysis of variance (ANOVA).??When ANOVA showed significant differences at 5%, Tukey test was applied. It was noted that points 1, 2 and 3 are presented as similar to physical-chemical conditions, however, as faecal coliforms, only the point 1 framed within the limits allowed. The most significant taxons such points were Ephemeroptera, Plecoptera and Trichoptera, which are more demanding about the environmental quality. But the point 4 stood out with high average fecal coliform, phosphorus and turbidity and low dissolved oxygen in water. The point 4 has contributed to the decline in quality of stream water and exacerbate eutrophication processes, species extinction and propagation of aquatic diseases. The zoobenthos assemblages were effective to indicate levels of pollution occurring in the studied stretch and subsidize future studies of biomonitoring.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:35Z No. of bitstreams: 5 40.pdf: 671743 bytes, checksum: 01827bc0544b1bc747825b4da796144b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:26:30Z (GMT) No. of bitstreams: 5 40.pdf: 671743 bytes, checksum: 01827bc0544b1bc747825b4da796144b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:26:30Z (GMT). No. of bitstreams: 5 40.pdf: 671743 bytes, checksum: 01827bc0544b1bc747825b4da796144b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Esse trabalho foi desenvolvido com os objetivos de avaliar a toler?ncia de gram?neas forrageiras e a absor??o, ac?mulo e disponibilidade no solo de c?dmio (Cd). Os experimentos foram instalados em condi??es de casa de vegeta??o do Departamento de Agronomia da Faculdade de Ci?ncias Agr?rias da Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina (MG). As forrageiras estudadas foram: Panicum maximum cv. Aruana e cv. Tanz?nia e Brachiaria decumbens cv. Basilisk, Brachiaria brizantha cv. Xara?s e cv. Marandu e as doses de Cd foram 0, 5, 10 e 20 mg L-1 de solu??o nutritiva e 0, 2, 4 e 12 mg kg-1 de solo. O delineamento experimental foi inteiramente casualizado, com quatro repeti??es, sendo o per?odo experimental de 90 dias, em ambos os experimentos. Determinou-se a massa seca e os teores de Cd na parte a?rea, colmo e ra?zes das forrageiras. Os conte?dos de Cd foram calculados com base nos teores e nas produ??es de massa seca em cada parte da planta. No caso do experimento em solo, para avalia??o do teor de Cd foram utilizados os extratores Mehlich-1, DTPA pH 7,3, teor semitotal - USEPA 3051 e teor total - USEPA 3052. O crescimento relativo das forrageiras foi reduzido pelas doses de Cd, tanto na solu??o nutritiva quanto no solo, configurando a fitotoxidade do Cd nessas plantas. Por?m a sequ?ncia de suscetibilidade foi diferenciada para os experimentos, sendo a ordem decrescente de suscetibilidade na solu??o nutritiva a seguinte: Aruana > Tanz?nia > Xara?s > Basilisk > Marandu, enquanto no solo a sequ?ncia foi: Marandu > Xara?s > Aruana > Tanz?nia > Basilisk. Essa diferen?a de suscetibilidade ? atribu?da ?s diferentes intera??es das forrageiras com o solo. Em ambos os experimentos o teor de Cd nas forrageiras aumentou em fun??o das doses Cd. Por?m a presen?a de Cd na solu??o nutritiva fez com que o ac?mulo e ?ndice de transloca??o apresentassem resposta diferenciada para as forrageiras. Os extratores Mehlich-1 e DTPA foram eficientes para expressar o crescimento da planta. De toda forma, as forrageiras foram incapazes de limitar a absor??o e transloca??o de Cd, acarretando em toxicidade e redu??o de crescimento e altos teores de Cd em todas as partes da planta, n?o proporcionando barreira ? entrada do Cd na cadeia alimentar. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT This work was carried out in order to evaluate the forage grasses tolerance and the absorption, accumulation and bioavailability of cadmium (Cd) on soil. The experiments were settled under conditions of greenhouse on the Department of Agronomy of the College of Agricultural Sciences of the Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina (MG), Brazil. The forages grasses evaluated were: Panicum maximum cv. Aruana and cv. Tanz?nia and Brachiaria decumbens cv. Basilisk, Brachiaria brizantha cv. Xara?s and cv. Marandu and the four doses of Cd were: 0, 5, 10, and 20 mg l-1 and the nutrients in solution 0, 2, 4 and 12 mg kg-1 for soil, respectively. The experimental design was completely randomized with four replications, and the trial period of 90 days, in both experiments. The dry weight and concentration of Cd in shoots, stems and roots of forages were determined. The Cd content had been calculated based on the dry matter yield and content in each part of the plant. In the soil experiment, to measure the levels of Cd, there had been used the extractors Mehlich-1, DTPA pH 7.3, semi total content - USEPA 3051 and total content - USEPA 3052. The relative growth of the forage grasses was reduced with doses of Cd applied, both in the nutrient solution and on the soil, setting the phytotoxicity of Cd in these plants. However the sequence of susceptibility was different t tohe experiments, the decreasing order of susceptibility in the nutrient solution was: Aruana> Tanzania> Xara?s> Basilisk > Marandu, while in soil the sequence was: Marandu> Xara?s> Aruana> Tanzania> Basilisk. This difference in susceptibility is attributed to the different interactions of forage with soil. In both experiments (soil and nutrient solution) the Cd content in the forage increased due of increasing doses of Cd. Nevertheless the presence of Cd in the nutritive solution has made the accumulation and translocation index differently for the forages. Mehlich-1 and DTPA showed high positive correlation with relative growth of forages. The forages were unable to limit the absorption and translocation of Cd, resulting in toxicity and declining growth and high levels of Cd in all parts of the plant, providing no barrier to entry of Cd into the food chain.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:32Z No. of bitstreams: 5 19.pdf: 383523 bytes, checksum: 883aa7f9ca5e7fef915325a2ba9f10f9 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:31:06Z (GMT) No. of bitstreams: 5 19.pdf: 383523 bytes, checksum: 883aa7f9ca5e7fef915325a2ba9f10f9 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:31:06Z (GMT). No. of bitstreams: 5 19.pdf: 383523 bytes, checksum: 883aa7f9ca5e7fef915325a2ba9f10f9 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20904 bytes, checksum: e09bf99e64678e4285abf3ef3e05412d (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2010 / O presente trabalho foi desenvolvido em 12 propriedades rurais localizadas nos munic?pios de Capelinha, Carbonita, Itamarandiba e Turmalina, produtoras de caf? irrigado pelo sistema de gotejamento, com o objetivo de avaliar a efici?ncia da irriga??o localizada e do consumo de energia na cafeicultura na regi?o do Alto Jequitinhonha, no per?odo de janeiro a julho de 2009. Para isso foram realizadas medi??es das vaz?es dos gotejadores, em talh?es de caf? com idade de 5 anos. Os gotejadores foram selecionados utilizando-se a metodologia proposta por KELLER & KARMELI. Por meio dos resultados dos c?lculos obtidos a partir dos dados coletados em campo, estimou-se o volume de ?gua aplicado, o consumo de energia real de cada propriedade rural e kg de gr?os produzido por l?mina de ?gua aplicada pelo produtor. Em seguida, com as informa??es da evapotranspira??o real, da evapotranspira??o da cultura, efici?ncia do sistema de irriga??o e Kc da cultura do caf?, determinou-se o volume de ?gua e o consumo de energia el?trica simulados para a condi??o de manejo adequado da irriga??o nas propriedades em estudo, no per?odo de janeiro a julho de 2009. Os resultados obtidos permitiram concluir que, em fun??o da inexist?ncia de um manejo adequado da irriga??o, 75% e 25% das propriedades em estudo apresentaram, respectivamente, aplica??o em excesso e em d?ficit de ?gua. Essa falta de manejo dos sistemas de irriga??o teve implica??o direta no consumo de ?gua, de energia el?trica e de kg de gr?os produzido por mm de ?gua aplicada na cultura do caf? nas propriedades pesquisadas durante o per?odo do estudo. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2010. / ABSTRACT The present work was developed in 12 rural properties located in the districts of Capelinha, Carbonita, Itamarandiba and Turmalina, considering all of them coffee roducers that use the leaking system for irrigation with the aim of evaluate efficiency of located irrigation?and energy consumption in the region of High Jequitinonha in the period from January to July in 2009. For that were realized measurements of flow in the leaking system using plots of coffee with 5 years old and the tools were selected using the methodology wich was proposed by KELLER & KARMELI. Through the results obtained from data colecting in field it was possible to the estimate the volume of applied water, energy consumption in each rural property?and kg of grain produced?by water shade. Then, with the information about real evapotranspiration, evapotranspiration of culture, irrigation system efficency and Kc of coffee culture, it was determined water volume and eletric energy consumption simulated?to the condition of adequated irrigation handling in the properties of study from January to July of 2009. In conclusion, the results? showed that due to inexistence of adequated irrigation handling, 75% and 25% of the studied?properties presented, respectively,? use of water in excess and in lack. This lack of handling in the irrigation system had direct inference in water consumption, electric energy and kg of produced grains per mm of applied water in coffee culture in the studied properties during the period of the work.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:32Z No. of bitstreams: 5 2.pdf: 984350 bytes, checksum: 04e03f5d860785728cd837db9f0819af (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:32:20Z (GMT) No. of bitstreams: 5 2.pdf: 984350 bytes, checksum: 04e03f5d860785728cd837db9f0819af (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:32:20Z (GMT). No. of bitstreams: 5 2.pdf: 984350 bytes, checksum: 04e03f5d860785728cd837db9f0819af (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2009 / A baixa taxa de germina??o pode ser o principal fator respons?vel pelo desest?mulo ?s pr?ticas de plantios comerciais de pequizeiro (Caryocar brasiliense Camb.). O objetivo deste trabalho foi verificar os fatores ambientais (localiza??o geogr?fica), proced?ncia, prog?nie, ?cido giber?lico e tempo de armazenamento das sementes na emerg?ncia de pl?ntulas dessa esp?cie. Foram coletadas sementes de prog?nies (matrizes) oriundas dos munic?pios mineiros de S?o Gon?alo do Rio Preto, Curvelo e Serro ? distrito de S?o Gon?alo do Rio das Pedras. As sementes foram coletadas em janeiro de 2005 e 2007 para o experimento 1 e em janeiro de 2007 e 2008 para o experimento 2, sendo semeadas em dois munic?pios: Diamantina (ambiente de baixa temperatura) e Curvelo (ambiente de alta temperatura). Os dados foram analisados atrav?s de testes Qui-quadrado para independ?ncia. Para os experimentos 1 e 2, conduzidos em Curvelo, todos os fatores foram altamente significativos (P<0,1%), exceto o efeito de proced?ncia (P = 6,89%) e do ?cido giber?lico (P = 6,08%), ambos do experimento 1. No experimento 1, conduzido em Diamantina, nenhum fator foi significativo a 10%, exceto o tempo de armazenamento (P = 5,64%) e o efeito ambiental (P<0,01%). J? no experimento 2, conduzido em Diamantina, todos os fatores foram significativos a 5%. A n?o signific?ncia para a maioria dos fatores em Diamantina no experimento 1 foi em decorr?ncia da baix?ssima taxa de germina??o nesse ambiente (apenas 11 sementes germinaram, de um total de 2010). A diferen?a de germina??o foi tamb?m significativa entre os dois ambientes - Curvelo e Diamantina, para os dois experimentos. Entretanto, no experimento 2, a germina??o foi menor em Curvelo, contrariando as expectativas. Acredita-se que a ocorr?ncia desse fato seja porque no ano de 2008 a sementeira em Diamantina foi montada no ch?o e n?o suspensa, como em Curvelo. A varia??o t?rmica seria maior no leito de areia suspenso por estar com a parte inferior exposta ? temperatura ambiente. Conclui-se que: a) a emerg?ncia em pl?ntulas de pequizeiro ? influenciada tanto por fatores gen?ticos como ambientais; b) a frequ?ncia de emerg?ncia em pl?ntulas de pequizeiro ? altamente influenciada pela planta matriz da qual foram colhidas; c) O efeito de popula??es (proced?ncias) na emerg?ncia em pl?ntulas de pequizeiro pode ser decorrente do pequeno tamanho dessas popula??es, confundindo-se com o efeito de matrizes; d) O tratamento de sementes de pequizeiro com ?cido giber?lico pode n?o ser garantia de maior emerg?ncia; e) O tempo de armazenamento de sementes de pequizeiro influencia consideravelmente a taxa de emerg?ncia. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2009. / ABSTRACT Pequi (Caryocar brasiliense Camb., caryocaraceae) is a widely distributed but endangered Brazilian Cerrado tree specie and its fruits are very appreciated by populations living in this biome. Observations show that temperature fluctuations, a common phenomenon observed among different altitudes, seems to have a strong influence on pequi seeds emergency. Genetic factors appears also to play an important role on this issue. These were the main focus on this work. Seeds from many progenies from three pequi populations (S?o Gon?alo do Rio Preto; Curvelo; and Serro, all of them in Minas Gerais State), strongly distanced from each other, were collected. The 3997 seeds collected in January of 2005 and 2007 years (Trial 1) and the 7035 ones collected in January of 2007 and 2008 years were sown proportionally in Diamantina, MG (a high altitude environment - roughly 1400m) and Curvelo, MG (a low altitude environment ? roughly 650m). The data were collected and organized in contingence tables. The hypothesis for population, progeny (tree), gibberellic acid (GA3), seed age (date of collection) and altitude (temperature) effects were tested by qui-square test for independence. For the trials carried out in Curvelo (high average temperature) in 2007 year, all tested effects were significant (P<0,1%), except populations (P=6,9%) and GA3 (P=6,1%), the last one reducing instead of, as expected, increasing the emergency rate. In the trials carried out in Diamantina (low average temperature) in 2007 year, the probabilities for qui-square tests were all over 10% except seed age (P=5,6%) and progenies (P=9,7%). In 2008 year all effects were significant (P<5%) for both locations. The temperature effects were also significant (P<5%) for the two years, however, against the expectations, in 2008 year, Curvelo (high average temperature) showed a lower emergency rate than Diamantina. The hypothesis to explain it was that the seed plot position was put directly on ground in Diamantina in this year, contrasting with the lifted ones in both locations in 2007 year and in Curvelo in 2008 year. This hypothesis was tested by comparing seed plots lifted with those sow directly on ground in both locations. The results showed that the emergency rate was significantly lower in the seed plots lifted in both Diamantina and Curvelo locations compared to those put directly on ground. May be the night and day temperature fluctuations affect more intensely the lifted seed plot. The main conclusions were: a) pequi seeds emergency are influenced by both genetic and environmental factors; b) it is highly influenced by their original progeny tree; c) progeny tree can also be the main factor responsible for population effects when the population sample is small; d) gibberellic acid is not a guarantee for better emergency in pequi seeds; e) the storage time has a considerable influence on their emergency rate; f) strong day and night temperature fluctuations can reduce the emergency rate in pequi seeds.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:32Z No. of bitstreams: 5 21.pdf: 686664 bytes, checksum: f9e852e5ec686e883014698e954c4160 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:39:11Z (GMT) No. of bitstreams: 5 21.pdf: 686664 bytes, checksum: f9e852e5ec686e883014698e954c4160 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:39:11Z (GMT). No. of bitstreams: 5 21.pdf: 686664 bytes, checksum: f9e852e5ec686e883014698e954c4160 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2009 / O pinh?o manso tem se apresentado como uma oleaginosa nativa com caracter?sticas importantes para extra??o de ?leo, visando ? produ??o de biodiesel, em ?reas com baixas precipita??es pluviom?tricas e baixos teores de nutrientes no solo. No entanto, pouca import?ncia foi dada ? sua cultura, a qual apenas nos ?ltimos anos vem sendo estudada, o que deixou um grande leque de informa??es em aberto, como as suas limita??es nutricionais e distribui??o dos nutrientes, por exemplo. Os objetivos destes trabalhos foram (a) avaliar as limita??es nutricionais no crescimento de mudas de pinh?o manso em Neossolo Quartzar?nico ?rtico t?pico e (b) avaliar as exig?ncias nutricionais de mudas de pinh?o manso sob omiss?o, ac?mulo e distribui??o de nutrientes nas diferentes partes da planta. Os experimentos foram conduzidos em condi??es de casa de vegeta??o do Departamento de Agronomia da Universidade Federal dos Vales do Jequitinhonha e Mucuri (Diamantina-MG). O primeiro experimento foi realizado com mudas de pinh?o manso cultivadas em vasos contendo Neossolo Quartzar?nico, submetido aos seguintes tratamentos: completo (adubado com N, P, K, Ca, Mg, S, B e Zn), testemunha (solo natural) e a omiss?o de um nutriente por vez (-N, -P, -K,-Ca, -Mg, -S, -B e -Zn), disposto em delineamento inteiramente casualizado, com cinco repeti??es. Ap?s 100 dias, foram avaliadas as seguintes caracter?sticas: altura das mudas, di?metro do caule, peso de massa seca da parte a?rea e das ra?zes e teor de macro e micronutrientes na massa seca da parte a?rea. O segundo foi conduzido em delineamento experimental inteiramente casualizado com quatro repeti??es e nove tratamentos. Os tratamentos consistiram de solu??o nutritiva completa e com omiss?o de N, P, K, Ca, Mg, S, B e Zn, pelo uso da t?cnica do elemento faltante. Ap?s 100 dias, foram avaliadas as seguintes caracter?sticas: peso de massa seca do limbo foliar, do pec?olo, da folha completa (limbo foliar + pec?olo), do caule, da parte a?rea e de ra?zes e teor de nutrientes na massa seca de cada parte das mudas de pinh?o manso. Pelos resultados obtidos, pode-se concluir: (1) todos os nutrientes foram limitantes para o crescimento das mudas de pinh?o manso no Neossolo Quartzar?nico, exceto o N, sendo que a sequ?ncia de limita??o nutricional foi P, Mg, Zn, Ca, K, S, B e N; (2) o pinh?o manso foi altamente exigente em todos os nutrientes na fase de crescimento e (3) o ac?mulo total de macronutrientes e micronutrientes se deu na seguinte forma na ordem decrescente: N>K>Ca>P>Mg>S e Fe>Cu>Mn>B>Zn, respectivamente, com maior ac?mulo na folha completa, ocorrendo uma invers?o de maior ac?mulo entre N e K para macronutrientes e Fe e Cu para micronutrientes no caule das mudas de pinh?o manso. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2009. / ABSTRACT The physic nut has been shown as a native oleaginous with important characteristics for oil extraction to the production of biodiesel in areas with low rainfall and low nutrient content in soil. However, little attention was given to its culture, which only in recent years has been studied, leaving a wide range of information in open, as their nutritional limitations and distribution of nutrients. The objectives of this work were (a) assess the nutritional limitations on physic nut seedling growth in tipic Ortic Quartzarenic Neossol and (b) assess the nutritional requirements of physic nut seedlings under omission, accumulation and distribution of nutrients in different parts of the plant. The experiments were carried out in greenhouse at the Agronomy Departament of UFVJM (Diamantina-MG). The first experiment used the physic nut seedlings, which was cultivated in pots with Quartzarenic Neossol under the following treatments: a complete treatment (fertilized with N, P, K, Ca, Mg, S, B and Zn), a control one (natural soil) and the absence of those nutrients per pot treatment, prepared in a completely randomized design with five repetitions. Plant height, stem diameter, dry weight mass of shoot and roots and content of macro and micronutrients in dry matter shoots were evaluated after 100 days. The second was the experimental design completely randomized, with four replications and nine treatments. The treatments consisted of a complete nutritive solution and with omission of N, P, K, Ca, Mg, S, B and Zn, using the missing element technique. Dry matter of the leaf blade, of the petiole, of the complete leaf (leaf blade + petiole), of the stem, of the shoot and of the roots and the nutrient content in dry matter of each parts of the physic nut seedlings were evaluated after 100 days. By the results, can be concluded: (1) all nutrients were limiting for the physic nut seedlings growth in Quartzarenic Neossol, except for the N, and the nutritional limitation was P, Mg, Zn, Ca, K, S, B and N; (2) the physic nut was highly demanding for all nutrients in the growth phase and (3) the total accumulation of macronutrients and micronutrients in descending order: N>K>Ca>P>Mg>S and Fe>Cu>Mn>B>Zn, respectively, with bigger accumulation in the complete leaf, occurring an inversion of bigger accumulation between N and K for macronutrientes and Fe and Cu for micronutrients in the stem of the physic nut seedlings.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:32Z No. of bitstreams: 5 22.pdf: 278533 bytes, checksum: ef0913cd0c1b3de1544ec9b543fb48ad (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:47:32Z (GMT) No. of bitstreams: 5 22.pdf: 278533 bytes, checksum: ef0913cd0c1b3de1544ec9b543fb48ad (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:47:32Z (GMT). No. of bitstreams: 5 22.pdf: 278533 bytes, checksum: ef0913cd0c1b3de1544ec9b543fb48ad (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2009 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / No Vale do Jequitinhonha a suinocultura ? uma atividade predominantemente praticada por pequenos produtores, os quais t?m pouca informa??o sobre o manejo adequado dos dejetos oriundos da atividade. O manejo adotado geralmente se resume ao armazenamento desses dejetos e posterior aplica??o no solo sem um tratamento pr?vio, constituindo um fator de polui??o ambiental. Dessa forma torna-se necess?rio a utiliza??o de dispositivos que promovam a redu??o do potencial poluidor dos dejetos e o reaproveitamento integral desses res?duos como forma de resgate de parte da energia empregada no processo produtivo. Diante disso os objetivos desse trabalho foram avaliar a efici?ncia do sistema de lagoas de estabiliza??o em s?rie na redu??o do potencial poluidor dos dejetos l?quidos de su?nos em uma granja comercial em ciclo completo com 500 animais, com vistas ao seu reaproveitamento como biofertilizante e estimar a quantidade de energia para produ??o de su?nos em ciclo completo e o balan?o energ?tico do sistema com reaproveitamento dos res?duos gerados como biofertilizante em ?rea de pastagem. Foram coletadas amostras em diferentes pontos do sistema de tratamento e efetuadas as an?lises dos seguintes par?metros: pH, Demanda bioqu?mica de oxig?nio (DBO), Demanda qu?mica de oxig?nio (DQO), S?lidos totais (ST), S?lidos totais fixos (STF), S?lidos totais vol?teis (STV), S?lidos suspensos totais (SST), S?lidos suspensos fixos (SSF), S?lidos suspensos vol?teis (SSV), Nitrog?nio total (N-Total), F?sforo (P), Pot?ssio (K), C?lcio (Ca) e Magn?sio (Mg). Quantificou-se o coeficiente energ?tico de cada componente envolvido no processo produtivo de su?nos terminados, tratamento dos res?duos e produ??o de pastagem de Brachiaria decumbens, nas formas de ra??o, trabalho humano, energia el?trica, m?quinas e equipamentos, combust?veis e lubrificantes, instala??es, produ??o de su?nos vivos e produ??o de Brachiaria decumbens. A remo??o da carga org?nica obtida pelo sistema de lagoas de estabiliza??o em s?rie foi de 84,38% da DBO e 85,27% para a DQO. A s?rie de s?lidos apresentou comportamento semelhante e os nutrientes N-Total, P, K, Ca e Mg foram removidos em 28,30; 63,46; 12,24; 42,84 e 74,95% respectivamente. O sistema foi eficiente na remo??o da carga org?nica e o efluente tratado demonstrou caracter?sticas favor?veis ao seu reaproveitamento como biofertilizante. No sistema de produ??o de su?nos avaliado, a quantidade m?dia de energia para produzir 1 kg de su?no vivo foi de 53,35 MJ. De toda energia empregada no sistema 76,03% (1.067.106,07 MJ) se referem ?s entradas e 23,97% (331.400 MJ) as sa?das, resultando em um coeficiente de efici?ncia energ?tica de 0,31. A energia transformada em su?nos para abate correspondeu a 55,58% (184.200 MJ) das sa?das, ao passo que a pastagem de Brachiaria decumbens assumiu um valor de 44,42% (147.200 MJ) apontando que a utiliza??o dos res?duos da cadeia suin?cola promoveu renova??o de energia, reduzindo os impactos ambientais e minimizando a importa??o de energia. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2009. / ABSTRACT Jequitinhonha?s Valley in the pig is an activity practiced primarily by small producers, which have little information on the proper management of waste from the activity. The management adopted generally comes to storage and subsequent application of manure in the soil without prior treatment, constituting a factor of environmental pollution. Thus it is necessary the use of devices that promote the reduction of the pollution potential of waste reuse and full of waste as a way of redemption of part of the energy used in the production process. Considering that the objectives of this study were to evaluate the efficiency of stabilization ponds in series to reduce the pollution potential of liquid pig manure on a commercial farm in full cycle with 500 animals, with a view to its reuse as biofertilizer and estimate the quantity of energy for production of pigs in complete cycle and energy balance of the system to reuse the waste generated as biofertilizer in area of pasture. Samples were collected at different points in the system of treatment and performed the analysis of the following parameters: pH, Biochemical Oxygen Demand (BOD), Chemical oxygen demand (COD), Total solids (TS), Total fixed solid (STF), Solid total volatile (STV), Total suspended solids (TSS), Suspended solids fixed (SSF), Volatile suspended solids (VSS), Total nitrogen (Total-N), Phosphorus (P), Potassium (K), calcium (Ca) and Magnesium (Mg). We quantified the energy coefficient of each component involved in the production process of finished pigs, waste treatment and production of pasture of Brachiaria decumbens in the form of food, human labor, energy, machinery and equipment, fuels and lubricants, plant, production of live pigs and production of Brachiaria decumbens. The removal of organic load produced by the system of stabilization ponds in series was 84.38% and 85.27% of BOD to COD respectively. The series showed similar behavior of solids and nutrients-Total N, P, K, Ca and Mg were removed at 28.30, 63.46, 12.24, 42.84 and 74.95% respectively. The system was efficient in removing the organic load and the treated effluent has characteristics favorable to its reuse as biofertilizer. The production system of pigs evaluated, the average amount of energy to produce 1 kg of live pigs was 53.35 MJ. Of all energy used in the 76.03% (MJ 1,067,106.07) refer to inputs and 23.97% (331,400 MJ) the exits, resulting in a coefficient of efficiency of 0.31. The energy transformed into pigs for slaughter was 55.58% (184,200 MJ) of output, while the pasture of Brachiaria decumbens took a value of 44.42% (147,200 MJ) indicating that the use of pig waste in the chain promoted renewal of energy, reducing environmental impacts and minimizing the import of energy.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:33Z No. of bitstreams: 5 25.pdf: 320576 bytes, checksum: 4781223a193fdf37ff0784eb0c44882b (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T16:58:53Z (GMT) No. of bitstreams: 5 25.pdf: 320576 bytes, checksum: 4781223a193fdf37ff0784eb0c44882b (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T16:58:53Z (GMT). No. of bitstreams: 5 25.pdf: 320576 bytes, checksum: 4781223a193fdf37ff0784eb0c44882b (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2008 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / O Alto Vale do Jequitinhonha tem apresentado como ascendente p?lo cafeeiro do estado de Minas Gerais. No entanto, pouca import?ncia tem sido dada ao diagn?stico do estado nutricional do cafeeiro que proporcione maior produtividade e, melhor qualidade da bebida.As normas DRIS ainda n?o foram estabelecidas para cafeeiros do Alto Vale do Jequitinhonha,assim, a inexist?ncia dessas impede que o DRIS seja aplicado nesta cultura nessa regi?o. A diagnose foliar, mediante o uso do Sistema Integrado de Diagnose e Recomenda??o (DRIS) e de faixas cr?ticas de nutrientes de refer?ncia, destaca-se dentre as ferramentas potenciais que permitem diagnosticar eficientemente o estado nutricional das plantas. Os objetivos deste trabalho foram (a) estabelecer as normas DRIS, propor faixas adequadas para teores foliares de nutrientes e diagnose nutricional dos cafeeiros (Coffea arabica L.) do Alto Vale do Jequitinhonha; (b) realizar o levantamento da qualidade da bebida do caf? e (c) estabelecer as normas DRIS, propor faixas adequadas de nutrientes e avaliar o estado nutricional dos cafeeiros para maior produtividade. O Alto Vale do Jequitinhonha tem apresentado como ascendente p?lo cafeeiro do estado de Minas Gerais. No entanto, pouca import?ncia tem sido dada ao diagn?stico do estado nutricional do cafeeiro que proporcione maior produtividade e, melhor qualidade da bebida.As normas DRIS ainda n?o foram estabelecidas para cafeeiros do Alto Vale do Jequitinhonha,assim, a inexist?ncia dessas impede que o DRIS seja aplicado nesta cultura nessa regi?o. A diagnose foliar, mediante o uso do Sistema Integrado de Diagnose e Recomenda??o (DRIS) e de faixas cr?ticas de nutrientes de refer?ncia, destaca-se dentre as ferramentas potenciais que permitem diagnosticar eficientemente o estado nutricional das plantas. Os objetivos deste trabalho foram (a) estabelecer as normas DRIS, propor faixas adequadas para teores foliares de nutrientes e diagnose nutricional dos cafeeiros (Coffea arabica L.) do Alto Vale do Jequitinhonha; (b) realizar o levantamento da qualidade da bebida do caf? e (c) estabelecer as normas DRIS, propor faixas adequadas de nutrientes e avaliar o estado nutricional dos cafeeiros para maior produtividade e melhor qualidade da bebida. Pelos resultados obtidos, pode-se concluir: (1) maiores porcentuais de lavouras em desequil?brios nutricionais foram observados para os nutrientes P, K, S, B, Cu, Mn e Zn em defici?ncia, sendo o Mg e Fe os excessivos; (2) as normas DRIS para diagnose nutricional foram estabelecidas para cafeeiros da regi?o do Alto Vale do Jequitinhonha, MG e utilizadas para propor faixas cr?ticas para N (2,25 - 2,79 dag kg-1), P (0,18 - 0,22 dag kg-1), K (1,72 - 2,10 dag kg-1), Ca (1,26 - 1,51 dag kg-1), Mg (0,29 - 0,35 dag kg-1), S (0,13 - 0,32 dag kg-1), B (83,8 - 96,3 mg kg-1), Cu (5,7 ? 9,3 mg kg-1), Fe (67,5 - 116,2 mg kg-1), Mn (219 - 422 mg kg 1) e Zn (17,4 - 30,0 mg kg 1); (3) pelo levantamento da qualidade da bebida do caf? verificou-se que a maior parte das lavouras avaliadas da regi?o apresentou qualidade da bebida classificada como ?dura?, por?m a regi?o apresenta aptid?o para produzir caf?s de melhor qualidade (bebida ?mole?, ?apenas mole? e ?estritamente mole?); (4) as normas DRIS para o estado nutricional juntamente com a qualidade da bebida do caf? foram estabelecidas para cafeeiros da regi?o do Alto Vale do Jequitinhonha, MG e a partir destas normas, foram propostas as faixas cr?ticas de nutrientes N (2,20 - 2,48 dag kg-1), P (0,20 - 0,24 dag kg-1), K (1,49 - 1,79 dag kg-1), Ca (1,30 - 1,61 dag kg-1), Mg (0,32 - 0,38 dag kg-1), S (0,10 - 0,13 dag kg-1), B (77,3 - 89,1 mg kg-1), Cu (3,1 ? 3,8 mg kg-1), Fe (174,0 - 242,4 mg kg-1), Mn (197,5 - 341,8 mg kg-1) e Zn (19,8 - 31,0 mg kg-1) e (5) a manuten??o do equil?brio do estado nutricional das lavouras cafeeiras proporciona elevada produtividade e qualidade da bebida do caf?. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2008. / ABSTRACT The High Jequitinhonha Valley has presented as coffee upward pole of the state of Minas Gerais. However, little attention has been given the diagnosis of the nutritional status of coffee that provides greater productivity and, together with productivity, improved quality of the drink. The DRIS standards have not yet been set for the coffee yield in Valley do Jequitinhonha, thus the absence of such rules prevent the DRIS is applied in that region's coffee culture. The diagnosis leaf, using the Integrated System Diagnosis and Recommendation (DRIS) and tracks critical of reference, stands out among the potential tools that allow efficiently diagnose the nutritional status of the plants. The objectives of this study were (a) establish the rules DRIS, propose suitable for tracks levels of nutrients and leaf diagnose nutritional of coffee (Coffea arabica L.) of the High Jequitinhonha Valley; (b) carry out lifting the quality of the coffee drink and (c) set the standards DRIS, propose appropriate tracks of nutrients and assess the nutritional status of coffee for higher productivity and better quality of the drink. Those results, we can conclude: (1) higher percentage of crops in nutritional imbalances were observed for nutrients P, S, B, Cu, Zn Mn and in disability, and the Mg and the excessive Fe; (2) The DRIS to diagnose nutritional standards were established for coffee in the region of the High Jequitinhonha Valley, MG and tracks used to propose critical for N (2.25 - 2.79 dag kg-1), P (0.18 - 0, 22 dag kg-1), K (1.72 - 2.10 dag kg-1), Ca (1.26 - 1.51 dag kg-1), Mg (0.29 - 0.35 dag kg-1 ), S (0.13 - 0.32 dag kg-1), B (83.8 - 96.3 mg kg-1), Cu (5.7 - 9.3 mg kg-1), Fe (67 , 5 to 116.2 mg kg-1), Mn (219 - 422 mg kg 1) and Zn (17.4 - 30.0 mg kg 1); (3) by lifting the quality of the coffee drink there was that most of the crops in the region had assessed quality of the drink classified as "hard", but the region presents ability to produce higher quality coffee (drink "soft", "just soft" and "strictly soft"); (4) DRIS standards for the nutritional status along with the quality of the drink of coffee were down for coffee in the region of the High Jequitinhonha Valley, MG and from these standards, the tracks were proposed critical nutrients N (2.20 - 2.48 dag kg-1), P (0.20 - 0.24 dag kg-1), K (1.49 - 1.79 dag kg-1), Ca (1.30 - 1.61 dag kg-1), Mg (0.32 - 0.38 dag kg-1), S (0.10 - 0.13 dag kg-1), B (77.3 - 89.1 mg kg-1), Cu (3.1 - 3.8 mg kg-1), Fe (174.0 - 242.4 mg kg-1), Mn (197.5 - 341.8 mg kg-1) and Zn (19.8 - 31.0 mg kg-1) as tracks appropriate for the better nutritional status and quality of the coffee beverage for the region of Minas; (5) for the diagnosis of the nutritional quality of coffee to drink noted that maintaining the balance of the nutritional status of crop, provides high productivity and quality of the coffee beverage.