Data/hora: 10/06/2024 02:41:38

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Foliar and topdressing application of nitrogen to the common bean crop	
Autores: 	Kotz-Gurgacz,Tailene Elisa; Soratto,Rogério Peres; Guidorizzi,Fernando Vieira Costa.	
Data: 	2018-12-01	
Ano: 	2018	
Palavras-chave: 	Phaseolus vulgaris; Foliar fertilization; Nitrogen fertilization; Slow release; Urea-formaldehyde.	
Resumo: 	Abstract: The objective of this work was to evaluate the effect of applying N sources to leaves and N rates to the soil on the growth, N uptake, and grain and crude protein yields of the common bean (Phaseolus vulgaris) crop. Three experiments - two irrigated and one rainfed - were conducted during the 2012/2013 agricultural season, in a randomized complete block design with four replicates. The treatments consisted of the application of: four N rates (0, 45, 90, and 180 kg ha-1) to the soil, as topdressing in the V4 stage; and five N sources/rates - i.e., control, without foliar N application; 2.5 kg ha-1 N as conventional urea (N-CU); 5.0 kg ha-1 N-CU; 2.5 kg ha-1 N as slow-release urea-formaldehyde (N-SR); and 5.0 kg ha-1 N-SR - to leaves, in the R5 stage. Soil N fertilization, using rates between 124 and 180 kg ha-1, increases shoot N content and uptake, number of pods per plant, grain yield, and protein content and yield. Regardless of the growing environment and N application to the soil, the foliar supply of N as slow-release urea-formaldehyde increases grain and protein yields, whereas the greatest rate of N as conventional urea also increases grain yield.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201329	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/s0100-204x2018001200005	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.53 n.12 2018	
Fonte: 	info:eu-repo/semantics/openAccess