Data/hora: 01/06/2024 14:06:09

Provedor de dados: 	87	
País: 	Brazil	
Título: 	Optimizing efficacy of acetochlor + atrazine and dicamba at various doses to manage Conyza stricta L. in sugarcane	
Autores: 	Hussain,Arif; A. Khakwani,Abdul; Tanveer,Asif; A. Khan,Ejaz; S. Baloch,Mohammad.	
Data: 	2020-01-01	
Ano: 	2020	
Palavras-chave: 	Dry weight; Persistence index; Biological yield; Sugarcane.	
Resumo: 	Abstract  Background: Conyza stricta L. (Horse weed) is an annual problematic weed in an agricultural ecosystem and considerably decreases the crop yield and quality.  Objective:  To determine the most effective pre and post emergence herbicides and their dose to control C. stricta in sugarcane crop.  Methods:  A two years field study comprised of six herbicides treatments along with weedy check and hand weeding. The design of study was RCBD with three replications.  Results:  Hand weeding recorded more leaf area index (LAI), crop growth rate (CGR) and net assimilation rate (NAR), biological and stripped yield. However, greater LAI, CGR and NAR, biological and stripped yield were recorded by acetochlor + atrazine at the rate of 2,715 g ha-1 (pre emergence) and dicamba at the rate of 466 g ha-1 (post emergence). All the treatments produced statistically comparable harvest index except weedy check, which produced less harvest index. Minimum C. stricta density and dry weight were recorded for acetochlor + atrazine at the rate of 2,715 g ha-1 and dicamba at the rate of 466 g ha-1. Acetochlor + atrazine at the rate of 2,715 g ha-1 (pre emergence) and dicamba at the rate of 466 g ha-1 (post emergence) gave better C. stricta control with high herbicides efficiency index.  Conclusion:  Acetochlor + atrazine at the rate of 2,715 g ha-1 (pre emergence) or dicamba at the rate of 466 g ha-1 (post emergence) may be used for efficient control of C. stricta in sugarcane.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100334	
Editor: 	Sociedade Brasileira da Ciência das Plantas Daninhas	
Relação: 	10.1590/s0100-83582020380100080	
Formato: 	text/html	
Fonte: 	Planta Daninha  v.38 2020	
Fonte: 	info:eu-repo/semantics/openAccess