Evaluación de herbicidas para el control de malezas en garbanzo (Cicer arietinum l.) de riego en la región Ciénaga de Chapala, México.

Use of herbicides to weed control is an available option in irrigated chickpea crop at the region Cienega of Chapala, Jalisco State, Mexico; thus, it is necessary generate technology since information available is very limited. In this work we evaluated the effectiveness of five herbicides: Alachlor, Oxyluorfen, Pendimethalin, Prometryn and Triluralin were evaluated and applied in pre-emergenge to determine their effectiveness in controlling the species of broadleaf weeds Amaranthus sp., Chenopodium spp., Portulaca oleracea, Physalis costomati and Euphorbia heterophylla in kabuli chickpea (Cicer arietinum L.) under irrigation conditions during the seasons 2003-04 and 2004-05. Treatments were tested in a randomized complete block design with four replications, plot size consisted on four rows 5 me long and 76 cm between rows. For each herbicide was calculated the percentage of each weed control. For each weed carried out analysis of variance and statistical test. Results: Statistical differences among herbicides treatments over the weed species were found, both different percentages of control. The most effective herbicides were pendimethalin 3,5 L/ha and triluralin 3,5 L/ha, with percentages of control from 77 to 95. There were not visual effects of toxicity by herbicides over the chickpea crop. [ABSTRACT FROM AUTHOR]