Contrôle de ervas daninhas em cultura de feijão-vagem pelo uso de herbicidas Control of weeds in snap beans with herbicides

• Main Authors: Aldo Alves, José Botter Bernardi
• Format: Article
• Language: English
• Published: Instituto Agronômico de Campinas 1968-01-01
• Series: Bragantia
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051968000100016

Visando eliminar as práticas convencionais de cultivo, nas lavouras de feijão-vagem (Phaseolus vulgarisL.), fêz-se uso, no combate às ervas daninhas, dos herbicidas EPTC, cloroxuron, trifluralin e DNBP. Quanto à produção total de vagens, não houve diferença significativa entre os diversos tratamentos. Todos os herbicidas experimentados revelaram eficácia no combate às ervas daninhas, sendo que o cloroxuron e o DNBP tiveram ação mais duradoura. O herbicida cloroxuron revelou-se fitotóxico para essa cultura, causando clorose pronunciada e consequent? morte de muitas plantas.<br>Four herbicides were tested ot control weeds in snap bean (Phascolus vulgarisL.) cultures, in pre-emergent conditions. EPTC and Irifluralin were incorporated before, whereas cloroxuron and DNBP after planting, but without incorporation iu the soil. A plot was cultivated by usual practices as check. Under the conditions of this experiment, there was no appreciable increase in the bean yield, but all the herbicides tested were efficacious in controlling the weeds. Those applied after planting showed better residual effects. Some toxicity of cloroxuron on snap beans was noted.