Use este identificador para citar ou linkar para este item:
http://repositorio.ufla.br/jspui/handle/1/12611
Título: | Soil phosphorus dynamics and availability and irrigated coffee yield |
Título(s) alternativo(s): | Dinâmica e disponibilidade de fósforo no solo e produtividade do cafeeiro irrigado |
Palavras-chave: | Phosphorus fractionation Phosphate fertilization Solo - Fertilização Soil - Fertilization Fracionamento de fósforo Adubação fosfatada |
Data do documento: | Mar-2011 |
Editor: | Sociedade Brasileira de Ciência do Solo |
Citação: | REIS, T. H. P. et al. Soil phosphorus dynamics and availability and irrigated coffee yield. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 35, n. 2, p. 503-512, Mar./Apr. 2011. |
Resumo: | 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. |
URI: | http://repositorio.ufla.br/jspui/handle/1/12611 |
Aparece nas coleções: | DCS - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
ARTIGO_Soil phosphorus dynamics and availability and irrigated coffee yield.pdf | 1,41 MB | Adobe PDF | Visualizar/Abrir |
Este item está licenciada sob uma Licença Creative Commons