Título:	Effects of levels of nitrogen and potassium on yeld and fruit maturation of irrigated guava trees in the São Francisco Valley.
Autoria:	LIMA, M. A. C. de BASSOI, L. H. SILVA, D. J. SANTOS, P. de S. PAES, P. de C. RIBEIRO, P. R. de A. DANTAS, B. F.
Afiliação:	MARIA AUXILIADORA COELHO DE LIMA, CPATSA; LUIS HENRIQUE BASSOI, CPATSA; DAVI JOSE SILVA, CPATSA; Polyane de Sá Santos, CNPq/UPE; Prissila de Castro Paes, CNPq/UPE; Paula Rose de Almeida Ribeiro, CNPq/UPE; BARBARA FRANCA DANTAS, CPATSA.
Ano de publicação:	2008
Referência:	Revista Brasileira de Fruticultura, Jaboticabal, v. 30, n.1, p. 246-250, 2008.
Conteúdo:	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.
Thesagro:	Goiaba Maturação Nutrição Qualidade Produção Variedade
Palavras-chave:	Paluma Característica química-fisica Vale do São Francisco Goaba Guava
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)