2005 - 2006 metais Lietuvos Žemės ūkio universiteto Bandymų stotyje, karbonatingame sekliai glėjiškame išplautžemyje (Calc(ar)i-Epihypogleyic Luvisols) IDg8-k (LVg-p-w-cc) atlikti tyrimai, siekiant įvertinti žieminių kviečių Titicum aestivum L. derlingumą ir kokybinių rodiklių pokyčius, naudojant skirtingas skystųjų kompleksinių trąšų KAS 32 ir Lyderis 25 - 3 S koncentracijas atskirais javų brendimo tarpsniais. Tyrimams pasirinkta žieminių kviečių veislė Lars, kuri priskiriama gerų kepimo savybių grupei. Nustatyta, kad papildomam žieminių kviečių tręšimui naudojant skystąsias kompleksines trąšas, patikimas derliaus priedas (1,64 – 2,14 t ha-1) gautas visuose variantuose, kuriuose tr��������šta N130 norma per augalų vegetaciją ir variante papildomai tręštame krūmijimosi tarpsnyje (N80) bei bambėjimo tarpsnyje (N20) norma. Žieminių kviečių papildomas tręšimas skystosiomis kompleksinėmis trąšomis gerino grūdų kokybę. Didžiausias kiekis šlapiojo glitimo ir baltymų nustatyta variantuose, kurie papildomai tręšti vėlyvaisiais augimo tarpsniais didesne N norma. / The productivity and quality traits of winter wheat (Triticum aestivum L.) under the influence of different liquidity fertilizers ‘KAS 32’ and ‘Lyderis 25-3S’ on special cereal ripeness were investigated at the Experimental Station of Lithuanian University of Agriculture in 2005-2006. The winter wheat variety ‘Lars’, which ascribable to well cooking group, were grown in the soil on trial fields – carbonate shallow gracious (Calc(ar)i-Epihypogleyic Luvisols) IDg8-k (LVg-p-w-cc). Our results showed, that using liquid manure for additional fertilization influenced significant yield additive (1.64-2.14 t ha-1) in all experiments, using N130 rate of fertilizers on plant growing season and additionally fertilized on tillering (N80) and stooling (N20) stages. Additional fertilization of winter wheat using liquid fertilizers improved grain quality. The greatest amount of wet gluten and protein were estimated in the experiments, using nitrogen at a premium rate for additional fartilization on late growth stages.

Magistrantūros studijų baigiamojo darbo tyrimų tikslas buvo nustatyti optimalią karbamido tirpalo koncentraciją papildomam cukrinių runkelių tręšimui per lapus, derinyje su laisvųjų amino rūgščių preparatu Terra Sorb foliar, turinčią tiek maitinamąjį, tiek stimuliacinį poveikį augalams, užtikrinantį gausesnį šakniavaisių derlingumą bei geresnę produkcijos kokybę. Tyrimai vykdyti 2011 m. Marijampolės r. „Kuktų“ ž.ū.b. Dirvožemis sekliai karbonatingas giliau glėjiškas rudžemis (Epicalcari–Endohypogleyic Cambisols). Darbo objektas – cukriniai runkeliai (Beta vulgaris L., var. saccharifera), veislė –Marathon. Darbo metodai: Sausųjų medžiagų kiekis lapuose ir šaknyse buvo nustatomas džiovinant augalų bandinius termostate prie 105 0C iki jų pastovaus svorio. Runkelių šakniavaisių derlingumas ir vidutinis šakniavaisio svoris nustatytas svėrimo būdu pagal priimtas metodikas. Šakniavaisių cukringumas nustatytas Marijampolės cukraus fabrike. Tyrimų duomenys statistiškai įvertinti vieno veiksnio kiekybinių požymių dispersinės analizės ir koreliacinės regresijos metodais, taikant kompiuterines programas ANOVA, STAT ENG (Tarakanovas, Raudonius, 2003). Darbo rezultatai. Papildomas cukrinių runkelių tręšimas karbamido tirpalais, derinyje su laisvųjų amino rūgščių preparatu Terra Sorb foliar, didino jų šakniavaisių bei lapų derlius. 15% karbamido tirpalas labai apdegino lapus, ko pasekoje sumažėjo ir lapų, ir šakniavaisių derliai. Apipurškus augalus 15% karbamido tirpalu šakniavaisių... [toliau žr. visą tekstą] / The main objective of Master thesis research was to determine the optimal concentration of urea solution in additional sugar beet fertilization through leaves, in combination with the free amino acids Terra Sorb foliar, which has both nutrient and stimulating effect on plants, ensuring richer root yields and better quality products. Research was carried out in 2011 in Marijampolė r. Agricultural company "Kuktai" ž.ū.b. Soil - shallow Endohypogleyic brown (Epicalcari-Endohypogleyic Cambisols). The objective – sugar beet (Beta vulgaris L. var. Saccharifera), sort ‘Marathon’. Working methods: dry matter content in leaves and roots was determined by drying the plant samples in a thermostat at 105 0C up to the constant weight. Sugar Beet root yield and average root weight was determined by weighing according to accepted procedures. Root sugar was determined in Marijampolė sugar factory. Research results. Additional sugar beet fertilization with urea solutions, in combination with the free amino acids in Terra Sorb foliar treatment, increased the root and leaf yield. The concentrations of 15% of the urea solution burned leaves, resulting in decreased leaf and root yields. When concentration of 1 and 5% urea solution was sprayed yield enhanced by a 3.8% and 9.4%. The biggest amount of Dry matter in the roots of sugar beet was obtained after spraying 10 and 15% urea solution. The highest amount of sugar in roots (18.4%), was obtained after spraying with 5% urea solution. Urea... [to full text]

Submitted by Maria Beatriz Vieira (mbeatriz.vieira@gmail.com) on 2016-10-10T14:07:20Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) dissertacao_luciano_compagnoni.pdf: 465534 bytes, checksum: 0f4beb0d252329714d7c36475f89efe4 (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2016-10-11T21:12:25Z (GMT) No. of bitstreams: 2 dissertacao_luciano_compagnoni.pdf: 465534 bytes, checksum: 0f4beb0d252329714d7c36475f89efe4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2016-10-11T21:14:19Z (GMT) No. of bitstreams: 2 dissertacao_luciano_compagnoni.pdf: 465534 bytes, checksum: 0f4beb0d252329714d7c36475f89efe4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2016-10-11T21:14:27Z (GMT). No. of bitstreams: 2 dissertacao_luciano_compagnoni.pdf: 465534 bytes, checksum: 0f4beb0d252329714d7c36475f89efe4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2013-12-18 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / A cultura da soja tem enorme importância para o país. Aumentar a produtividade dessa cultura representa ganhos sociais e econômicos preservando os recursos naturais. Lavouras demonstrativas mostram que atual produtividade da soja esta bem abaixo do seu potencial, sendo necessário investigar quais são os fatores que limitam a atual produtividade. O objetivo desse trabalho foi mensurar a resposta dos fatores, adubação adicional e descompactação, sobre a produtividade da soja. O experimento foi conduzido em uma lavoura comercial localizada no município de Lagoão, RS. O delineamento experimental foi o de parcelas subdivididas. Nas parcelas foram dispostos os tratamentos de compactação com dois níveis; Compactado e descompactado e nas subparcelas foram dispostos os cinco níveis de adubação adicional (zero, 250, 500, 750 e 1000) da formula 5-30-10. As avaliações de produtividade, componentes do rendimento e qualidade de sementes foram realizadas no Laboratório Didático de Análise de Sementes da Universidade Federal de Pelotas (LDAS/UFPel). A análise estatística foi realizada através de análise da variância e teste de hipóteses para verificar a significância dos efeitos principal e das interações. Para as comparações de médias foi utilizado o teste de tukey a 5% e/ou 1% de probabilidade. Não houve interação entre os dois fatores. A adubação adicional não melhorou a produtividade e não interferiu na qualidade fisiológica das sementes. A descompactação proporcionou produtividade média de 14,2 sacas a mais, produziu plantas mais altas, com maior diâmetro de caule, mais vagens e sementes por metro linear, maior peso de massa seca por hectare e apresentou menor índice de colheita. / The soybean has enormous importance for the country. Increasing the productivity of this crop represents social and economic gains while preserving natural resources. Crops demonstrative show that current soybean yield is well below its potential, it is necessary to investigate what are the factors that limit current productivity. The aim of this study was to measure the response of factors, additional fertilization and decompression on soybean yield. The experiment was conducted in a commercial farm in the municipality of Lagoão, RS. The experimental design was a split plot. The plots were arranged treatments with two levels of compression; Packed and unpacked and subplots were arranged five additional fertilizer levels (zero, 250, 500, 750 and 1000) the formula 5-30-10. Assessments of productivity, yield components and seed quality were performed at the Laboratory Textbook of Seed Analysis, Federal University of Pelotas (LDAS / UFPel). Statistical analysis was performed using analysis of variance and hypothesis testing to verify the significance of main effects and interactions. For mean comparison test was used to tukey 5% and / or 1% probability. There was no interaction between the two factors. The additional fertilization has not improved productivity and not interfered in physiological seed quality. Decompressing yielded average productivity of 14,2 more sacks, produced taller plants with greater stem diameter, pods and more seeds per meter, the greater weight of dry matter per hectare and had lower harvest index.