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	Provedor de dados Rev. Bras. Ciênc. Solo (1) Autor He,Zhenli L. (1) Merlin,Alexandre (1) Rosolem,Ciro Antonio (1) Palavra-chave Crop rotation (1) No-till (1) Organic P (1) Phosphorus fractionation (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2014 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Congo grass grown in rotation with soybean affects phosphorus bound to soil carbon Rev. Bras. Ciênc. Solo Merlin,Alexandre; He,Zhenli L.; Rosolem,Ciro Antonio. The phosphorus supply to crops in tropical soils is deficient due to its somewhat insoluble nature in soil, and addition of P fertilizers has been necessary to achieve high yields. The objective of this study was to examine the mechanisms through which a cover crop (Congo grass - Brachiaria ruziziensis) in rotation with soybean can enhance soil and fertilizer P availability using long-term field trials and laboratory chemical fractionation approaches. The experimental field had been cropped to soybean in rotation with several species under no-till for six years. An application rate of no P or 240 kg ha-1 of P2O5 had been applied as triple superphosphate or as Arad rock phosphate. In April 2009, once more 0.0 or 80.0 kg ha-1 of P2O5 was applied to the same... Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop rotation; No-till; Organic P; Phosphorus fractionation. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300020 Registros recuperados: 1 Primeira ... 1 ... Última

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