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Organic matter fractions in soil under coffee with split applications of phosphorus and water regimes AGRIAMBI
Araújo,Larissa G.; Figueiredo,Cícero C. de; Borges,Inácio B.; Ramos,Maria L. G.; Rocha,Omar C.; Guerra,Antonio F..
Phosphorus fertilization and irrigation management are essential practices to increase coffee yields, though information is scarce about the effect of these practices on organic matter fractions of soils of the ‘Cerrado’ (savanna-like vegetation). The purpose of this study was to evaluate organic matter fractions of a clayey Oxisol under coffee with split applications of phosphorus (P) and water regimes. The experimental design was a randomized block with 3 x 2 factorial arrangement with three split applications of P (P1: 300 kg ha-1 P2O5 applied annually of which 2/3 applied in September and 1/3 in December; P2: 600 kg ha-1 P2O5 applied at planting and every two years, and P3: 1800 kg ha-1 of P2O5 applied only at planting, corresponding to a 6-year...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Labile carbon; Phosphate fertilizer; Humic substances.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014001000005
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