Título:	Soil phosphorus dynamics and availability and irrigated coffee yield.
Autor:	REIS, T. H. P. GUIMARÃES, P. T. G. FURTINI NETO, A. E. GUERRA, A. F. CURI, N.
Afiliación:	THIAGO HENRIQUE PEREIRA REIS, UNIVERSIDADE FEDERAL DE LAVRAS; PAULO TÁCITO GONTIJO GUIMARÃES, EMPRESA DE PESQUISA AGROPECUÁRIA DE MINAS GERAIS; ANTÔNIO EDUARDO FURTINI NETO, UNIVERSIDADE FEDERAL DE LAVRAS; ANTONIO FERNANDO GUERRA, CPAC; NILTON CURI, UNIVERSIDADE FEDERAL DE LAVRAS.
Año:	2011
Referencia:	Revista Brasileira de Ciência do Solo, v. 35, p. 503-512, abr. 2011.
Descripción:	Research data have demonstrated that the P demand of coffee (Coffea arabica L.) is similar to that of short-cycle crops. In this context, the objective of this study was to evaluate the influence of annual P fertilization on the soil P status by the quantification of labile, moderately labile, low-labile, and total P fractions, associating them to coffee yield. The experiment was installed in a typical dystrophic Red Latosol (Oxisol) cultivated with irrigated coffee annually fertilized with triple superphosphate at rates of 0, 50, 100, 200, and 400 kg ha-1 P2O5. Phosphorus fractions were determined in two soil layers: 0-10 and 10-20 cm. The P leaf contents and coffee yield in 2008 were also evaluated. The irrigated coffee responded to phosphate fertilization in the production phase with gains of up to 138 % in coffee yield by the application of 400 kg ha-1 P2O5. Coffee leaf P contents increased with P applications and stabilized around 1.98 g kg-1, at rates of 270 kg ha-1 P2O5 and higher. Soil P application caused, in general, an increase in bioavailable P fractions, which constitute the main soil P reservoir.
Thesagro:	Café Crescimento Fósforo Irrigação Coffea Arábica
NAL Thesaurus:	Phosphates Phosphorus Irrigation
DOI:	https://doi.org/10.1590/S0100-06832011000200019
Notas:	Título em inglês: Dinâmica e disponibilidade de fósforo no solo e produtividade do cafeeiro irrigado.
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPAC)