Data/hora: 06/06/2024 05:28:49

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	16/09/2016	
Data da última atualização: 	06/11/2019	
Autoria: 	FAGERIA, N. K.; BALIGAR, V. C.	
Afiliação: 	NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR, USDA.	
Título: 	Growth, yield and yield components of dry bean as influenced by phosphorus in a tropical acid soil.	
Ano de publicação: 	2016	
Fonte/Imprenta: 	Journal of Plant Nutrition, New York, v. 39, n. 4, p. 562-568, Mar. 2016.	
DOI: 	10.1080/01904167.2016.1143489	
Idioma: 	Inglês	
Conteúdo: 	Phosphorus (P) deficiency is one of the most yield limiting factors for dry bean (Phaseolus vulgaris) production in tropical acid soils. Dry beans are invariably grown as mono-crops or as inter-crops under the perennial tropical crops. Information is limited regarding the influence of phosphorus fertilization on dry bean yield and yield components and P use efficiency in tropical acid soils. A greenhouse experiment was conducted to evaluate the influence of phosphorus fertilization on dry bean growth, yield and yield components and P uptake parameters. Phosphorus rates used were 0, 50, 100, 150, 200, and 250mg P kg(-1) of soil. Soil used in the experiment was an acidic Inceptisol. Grain yield, shoot dry weight, number of pods, and 100 grain weight were significantly (P < 0.01) increased with phosphorus fertilization. Maximum grain yield, shoot dry matter, number of pods, and 100 grain weight were obtained with the application of 165, 216, 162, and 160mg P kg(-1) of soil, respectively, as calculated by regression equations. Grain yield was significantly and positively associated with shoot dry weight, number of pods, P concentration in grain and total uptake of P in shoot and grain. Phosphorus use efficiency defined in several ways, decreased with increasing P rates from 50 to 250mg P kg(-1) of soil. Maximum grain yield was obtained at 82mg kg(-1) of Mehlich 1 extractable soil P. Results suggest that dry bean yield in Brazilian Inceptisols could be significantly increased with the use of adequate rates of phosphorus fertilization.	
Palavras-Chave: 	Grain harvest index; P use efficiency.	
Thesagro: 	Feijão; Fósforo; Phaseolus vulgaris.	
Thesaurus Nal: 	Phosphorus.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (34475-1) - UPC - AP - DD - 2016 -  - 2016 - DIS