Data/hora: 21/06/2024 11:59:54

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	17/09/2015	
Data da última atualização: 	21/07/2017	
Autoria: 	FAGERIA, N. K.; NASCENTE, A. S.; STONE, L. F.	
Afiliação: 	NAND KUMAR FAGERIA, CNPAF; ADRIANO STEPHAN NASCENTE, CNPAF; LUIS FERNANDO STONE, CNPAF.	
Título: 	Agronomic evaluation of coated and common urea in upland rice production.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	Communications in Soil Science and Plant Analysis, New York, v. 46, n. 17, p. 2152-2161, 2015.	
ISSN: 	1532-2416	
DOI: 	10.1080/00103624.2015.1069315	
Idioma: 	Inglês	
Conteúdo: 	Two greenhouse experiments were conducted simultaneously to evaluate polymercoated and common urea in upland rice production. The nitrogen (N) levels used for both the N sources were from 0 to 400 mg kg&#8722;1 of soil. Maximum grain yield was obtained with the addition of 167 mg N kg&#8722;1 polymer-coated urea and 238 mg N kg&#8722;1 common urea. Maximum value of other plant traits was obtained with N applied from 233 to 313 mg kg&#8722;1 depending on plant traits and N source. Nitrogen-use efficiency (NUE) decreased with increasing N rate in the two N sources. Based on results of growth, yield, and yield components, and NUE it can be concluded that the N sources were equally effective in upland rice production. Base saturation, pH, and exchangeable calcium (Ca) increased with increasing N rates while iron (Fe), manganese (Mn), and copper (Cu) contents decreased with the increasing N rates.	
Palavras-Chave: 	Nitrogen-use efficiency; Polymer-coated.	
Thesagro: 	Arroz; Características agronômicas; Nitrogênio; Oryza sativa; Propriedade físico-química.	
Thesaurus Nal: 	Rice; Yield components.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (33655-1) - UPC - AP - DD - 2015 -  - 2015 - DIS