Data/hora: 03/06/2024 01:28:12

Provedor de dados: 	87	
País: 	Brazil	
Título: 	Competition periods of crabgrass with rice and soybean crops	
Autores: 	Agostinetto,D.; Fontana,L.C.; Vargas,L.; Perboni,L.T.; Polidoro,E.; Silva,B.M.	
Data: 	2014-03-01	
Ano: 	2014	
Palavras-chave: 	Digitaria ciliaris; Oryza sativa; Glycine max; Interference.	
Resumo: 	Determining the periods of weed competition with crops helps the producer to choose the most appropriate time to use weed control practices. This strategy allows for the reduction of the number of herbicide applications, reducing costs and the environmental impact of pesticides. The objectives were to determine the period before the interference (PBI) of crabgrass (Digitaria ciliaris) competing with flooded rice, the critical period of interference prevention (CPIP) of crabgrass with soybean and the effects of competition on the grains yield and their components. Experiments were conducted with the coexistence of BRS Querência rice cultivar with crabgrass, for periods of 0, 7, 14, 21, 28, 35, and 110 days after emergency (DAE) and Fundacep 53RR soybean cultivar, whose periods of coexistence and control of crabgrass were 0, 7, 14, 21, 28, 35, and 156 DAE. Rice can grow with crabgrass infestation until 18 DAE, while soybean should remain free from the presence of crabgrass in the period between 23 and 50 DAE. The grain yield and its components, in the crops studied, are affected when grown with crabgrass.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100004	
Editor: 	Sociedade Brasileira da Ciência das Plantas Daninhas	
Relação: 	10.1590/S0100-83582014000100004	
Formato: 	text/html	
Fonte: 	Planta Daninha  v.32 n.1 2014	
Fonte: 	info:eu-repo/semantics/openAccess