Evaluating the Cultural and Physical Methods and Reduced Doses of Herbicide in Integrated Weed Management of Chickpea (Cicer arietinum L.)

Document Type : Research Paper

Authors

Abstract

        Weeds are one of the most important factors limiting production of chickpea (Cicer arietinum L.). In order to evaluate the effect of non-chemical control methods in integration with reduced rates of pyridate on weeds of chickpea field an experiment was conducted in Kermanshah during 2014-2015 growth seasons. The first factor was non-chemical weed management in five levels including wheat- chickpea intercropping, using wheat straw mulch, using cultivator, hand weeding and without non-chemical control and the second factor was application of different rates of herbicide pyridate at five levels including 0, 25, 50, 75 and 100% recommended rate(120 g.a.i/ha). Also the weed-free treatment during whole growth season was considered as control. The results showed that the interaction effect of herbicide rate Î non-chemical management was significant (p ≤ 0.01) on weed biomass, kernels number per plant and grain yield of chickpea. At all levels of non-chemical weed managements with increasing the herbicide dose, the weed biomass per unit area decreased. At all non-chemical management levels except straw mulch application, the difference between grain yield of 100 and 75% herbicide rate was not significant, therefore the 75% herbicide rete could be used instead of 100%. Generally with application of non-chemical weed management methods, the herbicide input reduced and also the grain yield of chickpea was not affected.
 

Keywords


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