Abstract :
A field experiment was conducted during Rabi season 2017-2018 at Doon (PG) College of agriculture science and technology Dehradun (Uttarakhand) using four herbicides combined with Hand weeding for effectively controlling of both groups of weeds, their effect on production economics on chickpea. The experiment was carried out in Randomized Block Design with three replications. The treatments consist of eleven weed management practices. We observed Weed free up to 60 days recorded minimum and significantly lowest total weed counts compared to rest of treatment then One hand hoeing at 15 DAS + one hand weeding at 30 DAS, pendimethalin 30 EC pre-emergence 0.700 kg/ha fb then one hand weeding at 30 DAS, pendimethalin 30 EC PE 700 g/ha. Weed index was recorded highest i.e 100 per cent with treatment weed free up to 60 days. The important growth attribute, viz. plant height, number branches/plant, crop dry matter accumulation and important yield contributing characters, viz. number pods/plant, number of seeds/pods, text weight, growth values, viz. grain and straw yield significantly in the treatment weed free up to 60 days and it as at per with one hand hoeing at 15 DAS + one HW at 30 DAS, pendimethalin 30 EC pre-emergence 0.700 kg/ha fb then one hand weeding at 30 DAS, pendimethalin 30 EC PE 700 g/ha. Economic study revealed that, the maximum net monetary returns were obtained with the treatment weed free up to 60 DAS (Rs 40758/ha) but it was at per with treatment one hand hoeing at 15 DAS + one hand weeding at 30 DAS, (Rs 29770/ha), pendimethalin 30 EC PE 700 g/ha, (29429/ha), pendimethalin 30 EC Pre-emergence 0.700 kg/ha fb then one hand weeding at 30 DAS, (Rs 27361/ha).Where, B:C ratio (2.20) is highest in also with the treatment weed free up to 60 DAS.
Keyword :
weed flora, weed control efficiency, Weed dry weight, and yield