Data/hora: 03/06/2024 01:26:18

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Effectiveness of fused magnesium potassium phosphate for marandu grass	
Autores: 	Orioli Júnior,Valdeci; Coutinho,Edson Luiz Mendes.	
Data: 	2009-12-01	
Ano: 	2009	
Palavras-chave: 	Brachiaria brizantha; Particle size; Critical level.	
Resumo: 	The current high price of KCl and great dependence on importation to satisfy the Brazilian demand indicate the need for studies that evaluate the efficiency of other K sources, particularly those based on domestic raw material. For this purpose, a greenhouse experiment was conducted with samples of a sandy clay loam Typic Haplustox, in a completely randomized 4 x 3 x 2 factorial design: four K rates (0, 60, 120, and 180 mg kg-1), three sources (potassium chloride (KCl), fused magnesium potassium phosphate (FMPP) and a mixture of 70 % FMPP + 30 % KCl) and two particle sizes (100 and 60 mesh), with three replications. Potassium fertilization resulted in significant increases in shoot dry matter production and in K concentrations, both in soil and plants. The K source and particle size had no significant effect on the evaluated characteristics. Potassium critical levels in the soil and the shoots were 1.53 mmol c dm-3 and 19.1 g kg-1, respectively.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600034	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832009000600034	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.33 n.6 2009	
Fonte: 	info:eu-repo/semantics/openAccess