PJB-2025-355
Integration of seeding rates and weed management techniques for weed suppression and some agronomic traits of Chickpea (Cicer arietinum L.)
Rahamdad Khan
Abstract
Weeds are a significant challenge in increasing chickpea yield. Field trials were conducted over two years (2017-18 and 2018-19) at Ahmad Wala Research Station in District Karak, Khyber Pakhtunkhwa, Pakistan, to address this issue. The experiment followed a Randomized Complete Block (RCB) design with four replications and a split-plot arrangement. Main plots were assigned four seed rates (60, 70, 80, and 90 kg ha-1), while sub-plots had seven weed control treatments: s-metolachlor, pendimethalin, clodinafop, fenoxaprop-p-ethyl, hand weeding, parthenium extract, and weedy check. Parameters measured included weed density, fresh weed biomass, plant height at maturity, number of pods per plant, 100-seed weight, and seed yield.
Results from both years indicated that pendimethalin and s-metolachlor had the minimum weed density. Pendimethalin also resulted in the maximum 100-seed weight and seed yield, followed by s-metolachlor and hand weeding. Among the chickpea seeding rates, 70 kg ha-1 showed the highest 100-seed weight and seed yield. Therefore, sowing chickpea at 70 kg ha-1 with pendimethalin or s-metolachlor herbicide application is recommended for effective weed control and maximum yield under rainfed conditions in Pakistan.
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