Data/hora: 09/06/2024 05:27:20

Provedor de dados: 	Revista Brasileira de Fruticultura	
País: 	Brazil	
Título: 	Effects of levels of nitrogen and potassium on yield and fruit maturation of irrigated guava trees in the São Francisco Valley	
Autores: 	Lima,Maria Auxiliadora Coêlho de; Bassoi,Luís Henrique; Silva,Davi José; Santos,Polyane de Sá; Paes,Prissila de Castro; Ribeiro,Paula Rose de Almeida; Dantas,Bárbara França.	
Data: 	2008-03-01	
Ano: 	2008	
Palavras-chave: 	Psidium guajava L.; Nutrition; Maturity stages; Fruit quality.	
Resumo: 	Yield and physical and chemical characteristics of 'Paluma' guava fruit were evaluated as a function of the harvest at different maturity stages, under influence of nitrogen and potassium fertilization, in Petrolina, State of Pernambuco, Brazil. Fertilizer rates were 67 kg N + 33 kg K2O, 133 kg N + 67 kg K2O, 200 kg N + 100 kg K2O and 267 kg N + 133 kg K2O per hectare. Fruits were evaluated at maturity stages 2, 3, 4 and 5, established according to peel color. Higher doses of N and K induced higher yields. Nevertheless, fertilization with 200 kg of N + 100 kg of K per hectare improved fruit quality, delaying ascorbic acid breakdown and conserving pulp firmness. Main changes took place at maturity stages 4 and 5, when the fruit should present ideal conditions for consumption, namely the increase on soluble solids and soluble sugars content.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000100045	
Editor: 	Sociedade Brasileira de Fruticultura	
Relação: 	10.1590/S0100-29452008000100045	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Fruticultura  v.30 n.1 2008	
Fonte: 	info:eu-repo/semantics/openAccess