Data/hora: 16/06/2024 19:15:33

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	03/02/2010	
Data da última atualização: 	13/07/2020	
Autoria: 	MOREIRA, A.; CASTRO, C. de; FAGERIA, N. K.	
Afiliação: 	ADONIS MOREIRA, CPPSE; CESAR DE CASTRO, CNPSo; NAND KUMAR FAGERIA, CNPAF.	
Título: 	Yield, foliar concentration, and efficiency of extractant solutions with boron application in a Xanthic Ferralsol cultivated with banana in Central Amazon.	
Ano de publicação: 	2009	
Fonte/Imprenta: 	In: INTERNATIONAL PLANT NUTRITION COLLOQUIUM 16., 2009, Davis. Proceedings... Davis: University of California, 2009.	
Páginas: 	9 p.	
Idioma: 	Inglês	
Notas: 	Paper 1054.	
Conteúdo: 	Boron is known to play important role in the structure of cell wall, membranes, and membrane-associated functions in plants. In soil, the hot water B extraction method has been extensively used, however, difficulties with this procedure result in low accuracy and precision of extraction of available boron (B) in soil. The objective of this study was to evaluate the Yield, foliar concentration, and efficiency of B extracting solutions and the effect of B fertilization on B uptake in banana leaves and fruits, subgroup Cavendish (AAA), cultivated in a Xanthic Ferralsol (dystrophic Yellow Latosol), in the Amazonas State, Brazil. The experimental design was a completely randomized split plot, comprising four boron rates (0, 4, 8, and 12 kg ha-1), and two harvest cycles (subtreatments), with four replicates. Available boron was determined with seven extractant solutions: Mehlich 1, Mehlich 3, hot water, HCl 0.05 mol L-1, HCl 0.1 mol L-1, HCl 5.0 mol L-1 and KCl 1.0 mol L-1. The application of B fertilizer increased the yield and concentration of B in leaves and fruits. Hot water and KCl 1.0 mol L-1 were the most efficient extracting solutions for the determination of available B in soil. The application of 3.4 kg B ha-1 in first cycle and 1.3 kg B ha-1 in second cycle guarantees an adequate nutritional status in banana plants.	
Palavras-Chave: 	Amazonas.	
Thesagro: 	Banana; Boro; Fertilizante; Microelemento.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/110135/1/nkf.pdf	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (29488-1) - UPC - AA - DD - 2009 -  - 2009 - DIS