effect of different herbicides on weed control in chickpea (cicer arietinum l

chickpea (cicer arietinum l.) is a dry pulse crop commonly used from old time. the chickpea yield is lower as compared to maximum potentials of the cultivars. the gap could mainly be attributed to the weed competition in addition to other production constraints. although chickpeas are traditionally grown on residual soil moisture, weeds competition pose major problem in many situations. in order to compare the efficiency of 11 herbicide treatments with weedy check treatment (no weed control) of chickpea an experiment was conducted in agricultural research center of gorgan, iran. treatments were compared based on a randomized complete block design with four replications. the herbicides were included pyridate as a post emergence herbicide at 2 and 2.5 lit.ha-1, paraquate as an emerging time herbicide at 1.5 and 2 lit.ha-1, terbotrine, cianazine, linoran, propyzamide and combination all of them as some pre-emergence herbicides. the data were recorded on weed density (plant.m-2) and dry weight of weeds (gr.m-2). pigweed was a major weed in the field under consideration. fumitory, lambsquarter and wild mustard were as secondary importance. none of the herbicdes gave adequate control of weeds. in general, pyridate treatments showed a good control on the number and dry weight of weeds under investigation. in the absence of herbicide and weeding, high competition between weeds and crop resulted in reduction of grain yield of chickpea. otherwise, post emergence applied pyridate (2lit.ha-1) seemed to be more economical in golestan conditions for weed control.