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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Caracter?sticas do solo e comportamento nutricional de oliveiras pela fertiliza??o organomineral / Soil characteristics and nutritional behavior of olive trees by organomineral fertilization

Carvalho, Raoni Pereira de 28 August 2013 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2014-12-23T13:38:10Z No. of bitstreams: 2 raoni_pereira_carvalho.pdf: 768943 bytes, checksum: 41ef0334b22f9028b8baa7b5acd35b87 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2014-12-23T13:38:49Z (GMT) No. of bitstreams: 2 raoni_pereira_carvalho.pdf: 768943 bytes, checksum: 41ef0334b22f9028b8baa7b5acd35b87 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2014-12-23T13:39:04Z (GMT) No. of bitstreams: 2 raoni_pereira_carvalho.pdf: 768943 bytes, checksum: 41ef0334b22f9028b8baa7b5acd35b87 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Made available in DSpace on 2014-12-23T13:39:04Z (GMT). No. of bitstreams: 2 raoni_pereira_carvalho.pdf: 768943 bytes, checksum: 41ef0334b22f9028b8baa7b5acd35b87 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2013 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Informa??es sobre o comportamento nutricional da oliveira (Olea europaea L.) s?o fundamentais para o estabelecimento e o manejo da aduba??o na cultura em novas regi?es de cultivo no Brasil. Nesse sentido, a aplica??o de fertilizantes organominerais ? uma t?cnica que vem sendo utilizada para atender ? demanda nutricional das plantas, aumentar a produtividade e preservar o meio ambiente, pois essa pr?tica pode reduzir a necessidade de fontes qu?micas, favorecendo a melhoria da estrutura do solo e a utiliza??o pelas plantas. Diante disso, a pesquisa foi realizada com o objetivo de avaliar as caracter?sticas do solo e o comportamento nutricional de duas variedades de oliveira, com a redu??o da aduba??o qu?mica pela aplica??o de um fertilizante organomineral. A pesquisa foi conduzida no munic?pio de Diamantina, MG, Brasil, situado a 18? 14? 56? S e 43? 36? 0? W, ? altitude de 1.384 m. Foram utilizadas duas variedades de oliveira, ?Barnea? e ?Grappolo 541?, de tr?s anos de idade, implantadas no espa?amento de 5 m entre linhas e 3 m entre plantas, em solo classificado como Neossolo Quartzar?nico. Utilizou-se o esquema de parcela subdividida, tendo na parcela o fatorial 4 x 2, sendo quatro aduba??es e duas variedades e, na subparcela, as ?pocas de avalia??o. As aduba??es constitu?ram-se de 100%, 75%, 50% e 0% da aduba??o mineral recomendada para a oliveira, distribu?das em blocos casualizados, com tr?s blocos e tr?s plantas por parcela. Em todas as plantas foi feita a aplica??o do fertilizante organomineral na aduba??o dos dois anos agr?colas, em novembro de 2011 e outubro de 2012, respectivamente. Para avaliar as caracter?sticas do solo e o comportamento nutricional das variedades de oliveira, as amostras foliares e de solo foram retiradas em quatro ?pocas, sendo: antes da aduba??o, em novembro de 2011 e ap?s as aduba??es, em mar?o de 2012, julho de 2012 e junho de 2013. Os dados foram submetidos ? an?lise de vari?ncia e de regress?o polinomial, a 5% de signific?ncia. O comportamento nutricional das variedades de oliveira ?Barnea? e ?Grappolo 541? n?o foi alterado com a redu??o da aduba??o qu?mica e a aplica??o de fertilizante organomineral. A variedade ?Barnea?, por seu h?bito de crescimento r?pido, apresentou menores teores de nutrientes. A redu??o da aduba??o qu?mica em 64,5%, com aplica??o de fertilizante organomineral, n?o interferiu no crescimento vegetativo da variedade ?Grappolo 541?. As caracter?sticas qu?micas do solo melhoraram com a aplica??o do fertilizante organomineral. A fertiliza??o organomineral se mostrou uma excelente alternativa para solos classificados como Neossolos quartzar?nicos. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2013. / ABSTRACT Information on the nutritional behavior of the olive tree (Olea europaea L.) is essential for the establishment and management of crop fertilization in new growing regions in Brazil. In this sense, the application of organomineral fertilizers is a technique that has been used to reach the nutrient demand of plants, increase productivity and protect the environment, because this practice can reduce the need for chemical sources, favoring the improvement of soil structure and utilization by plants. Thus, the research was conducted with the aim out to evaluate the soil characteristics and nutritional behavior of two olive varieties with the reduction of chemical fertilization by application of an organomineral fertilizer. The research was conducted in the city of Diamantina, MG, Brazil, located at 18 ? 14' 56" S and 43? 36' 00" W, at an altitude of 1,384 m. Two cultivars of olive (Olea europeae) were used, 'Barnea' and 'Grappolo 541', three years old, cultivated at a spacing of 5 m between rows and 3 m between plants in soil classified as Quartzipsamment. The Split-split Plot scheme was used, taking in plot the 4 x 2 factorial being the factors four fertilization and two cultivars and the sub-plot evaluation times. Fertilization consisted of 100%, 75%, 50%, 0% of mineral fertilization recommended for olive tree, distributed in a randomized block design with three blocks and three plants per plot. In all the plants was made the application of the organomineral fertilizer in fertilization of two agricultural years, in November 2011 and October 2012, respectively. To evaluate the characteristics of the soil and the nutritional behavior of olive varieties, soil and leaf samples were taken at four different times: before fertilization in November 2011 and after fertilization in March 2012, July 2012 and June 2013. Data were subjected to analysis of variance and polynomial regression at 5% significance. The nutritional behavior of olive varieties 'Barnea' and 'Grappolo 541' has not changed with the reduction of chemical fertilizer and application of organomineral fertilizer. The variety 'Barnea', for his habit of rapid growth, had lower nutrients levels. Reduction of chemical fertilizer at 64.5% with application of organomineral fertilizer did not affect the vegetative growth of the variety 'Grappolo 541'. Chemical characteristics of the soil improved with the application of organomineral fertilizer. The organomineral fertilization proved to be an excellent alternative to soil classified as Quartzipsamments.

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