Data/hora: 12/06/2024 02:48:20

Provedor de dados: 	64	
País: 	Brazil	
Título: 	COFFEE YIELD AND PHOSPHATE NUTRITION PROVIDED TO PLANTS BY VARIOUS PHOSPHORUS SOURCES AND LEVELS	
Autores: 	Dias,Kaio Gonçalves de Lima; Neto,Antônio Eduardo Furtini; Guimarães,Paulo Tácito Gontijo; Reis,Thiago Henrique Pereira; Oliveira,Cesar Henrique Caputo de.	
Data: 	2015-04-01	
Ano: 	2015	
Palavras-chave: 	Coffee nutrition; Coffea arabica; Phosphorus fertilization.	
Resumo: 	Phosphorus (P) is considered one of the nutrients that most limits crop yields, especially in soils with an advanced degree of weathering. To evaluate P dynamics and availability in soil resulting from various P doses and sources and to assess the resulting P content of coffee leaves and the final coffee yield, an experiment was conducted in the municipality of Três Pontas, MG, Brazil, in a Red Argisol (Ultisol) area. Fertilization, except for P fertilization, was performed based on the soil analysis results. The annual P doses tested were 0, 75, 150, 300, 450 and 600 kg ha-1 P2O5. Two P sources, simple superphosphate and magnesium thermal phosphate, were evaluated and compared in the study. A physicochemical analysis of the soil and an analysis of leaf dry matter were performed. The available P content in the soil increased as a result of the applications of the two sources. The leaf P levels stabilized at approximately 1.8 and 1.9 g kg-1 for simple superphosphate and magnesium thermal phosphate, respectively, as a result of the application of approximately 300 kg ha-1 P2O5. The coffee responded to P fertilization in the production phase. Averaged over three harvests, the yield per harvest showed gains of 45.3% and 40.3% for simple superphosphate and magnesium thermal phosphate, respectively, with the application of the highest studied dose, 600 kg ha-1 P2O5.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200110	
Editor: 	Editora da Universidade Federal de Lavras	
Relação: 	10.1590/S1413-70542015000200002	
Formato: 	text/html	
Fonte: 	Ciência e Agrotecnologia  v.39 n.2 2015	
Fonte: 	info:eu-repo/semantics/openAccess