Data/hora: 11/06/2024 08:21:53

Provedor de dados: 	63	
País: 	Brazil	
Título: 	Gafsa rock phosphate and triple superphosphate for dry matter production and P uptake by corn	
Autores: 	Corrêa,Rossini Mattos; Nascimento,Clístenes Williams Araújo do; Souza,Silvana Keely de Sá; Freire,Fernando José; Silva,Gleibson Barbosa da.	
Data: 	2005-04-01	
Ano: 	2005	
Palavras-chave: 	Rock phosphate; Phosphate fertilization; Phosphorus fixation.	
Resumo: 	Crops in general make poor use of phosphorous fertilizer and, as a result, recommended rates and production costs are very high. Phosphorus can be made more readily available to plants by proper management of phosphate fertilization, selecting both, type of fertilizer and application method. This study was carried out to evaluate the efficiency of the natural Gafsa rock phosphate and the triple superphosphate on dry matter production and P uptake by corn plants cultivated in a greenhouse. Fertilizers were applied localized and broadcast/incorporated on to two soils with contrasting phosphorus capacity factors (PCF). Rock phosphate broadcast application was as efficient as triple superphosphate in increasing corn plant dry matter in the Tropudult, with lower PCF. This effect was not observed on the Haplustox, owing to the lower P solubility due to the higher Ca concentration in this soil. Triple superphosphate rates increased plant P uptake in both soils and for both application forms. Rock phosphate resulted in higher P-content in plants, but only for broadcast application on the Ultisol.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200011	
Editor: 	São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"	
Relação: 	10.1590/S0103-90162005000200011	
Formato: 	text/html	
Fonte: 	Scientia Agricola  v.62 n.2 2005	
Fonte: 	info:eu-repo/semantics/openAccess