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	Provedor de dados Scientia Agricola (1) Rev. Bras. Ciênc. Solo (1) Autor Adami,Paulo Fernando (1) Assmann,Alceu Luiz (1) Assmann,Tangriani Simioni (1) Boschiero,Beatriz Nastaro (1) Khan,Saeed Ahmad (1) Mariano,Eduardo (1) Mulvaney,Richard Lesley (1) Otto,Rafael (1) Pitta,Christiano Santos Rocha (1) Sartor,Laércio Ricardo (1) Soares,André Brugnara (1) Tenelli,Sarah (1) Trivelin,Paulo Cezar Ocheuze (1) Mais... Palavra-chave Inorganic N (2) Forage production (1) Illinois Soil N Test (1) Mineralization (1) Saccharum spp. (1) Soil fertility (1) Urea (1) Vinasse (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2019 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Effect of previous soil management on sugarcane response to nitrogen fertilization Scientia Agricola Otto,Rafael; Mariano,Eduardo; Mulvaney,Richard Lesley; Khan,Saeed Ahmad; Boschiero,Beatriz Nastaro; Tenelli,Sarah; Trivelin,Paulo Cezar Ocheuze. ABSTRACT: N Fertilizer recommendations must be improved to optimize N use efficiency (NUE) for bioenergy crops. A study was conducted to test the hypothesis that sites varying in historical usage of by-product differ in soil N-supplying power and sugarcane (Saccharum spp.) responsiveness to N fertilization. Our aim was to quantify soil N availability and N fertilizer rates, sources, and application timings for their effects on sugarcane yield and NUE. Three N response trials, each involving 0 to 200 kg N ha−1, were conducted in the state of São Paulo, Brazil, at sites varying historically in the usage of vinasse. Before fertilizer application and at harvest, soil inorganic N content was quantified and potential N mineralization estimated by the Illinois... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Illinois Soil N Test; Inorganic N; Vinasse; Mineralization. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019000100072 Nitrogen fertilizer use efficiency, recovery and leaching of an alexandergrass pasture Rev. Bras. Ciênc. Solo Sartor,Laércio Ricardo; Assmann,Tangriani Simioni; Soares,André Brugnara; Adami,Paulo Fernando; Assmann,Alceu Luiz; Pitta,Christiano Santos Rocha. Nitrogen usually determines the productive potential of forage crops, although it is highly unstable in the environment. Studies on recovery rates and use efficiency are important for more reliable fertilizer recommendations to reduce costs and avoid environmental pollution. The purpose of this study was to evaluate N use efficiency and recovery rate of Alexandergrass pasture (Brachiaria - Syn. Urochloa plantaginea) as well as N-NO3- and N-NH4+ soil concentrations using different levels of N fertilization under two grazing intensities. The experiment was arranged in a randomized block design in a factorial scheme with three replications. Treatments consisted of three N rates (0, 200 and 400 kg ha-1 N) and two grazing intensities termed low mass (LM; forage... Tipo: Info:eu-repo/semantics/article Palavras-chave: Forage production; Inorganic N; Soil fertility; Urea. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000300024 Registros recuperados: 2 Primeira ... 1 ... Última

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