Effect of Irrigation Time and Weed Management Practices on Weeds and Wheat Yield

Performance of irrigation time and weed management practices against weeds in wheat was evaluated. Chenopodium album L. and Chenopodium murale L. were predominating weed species and comprised about 76% of total weed population in weedy check. Pre-sowing irrigation reduced the dry weight of C. album and C. murale by 21 and 25%, respectively, and subsequently grain yield was 12% higher over post-sowing irrigation. Pre-emergence application of pendim~thalin at 0.75 kg ha−1 supplemented by one hand weeding or 2, 4-D, 0.50 kg ha−1 at 30 DAS gave significantly higher grain yield due to better weed control. However, the higher additional net return (Rs. 8063) was also obtained with pendimethalin at 0.75 kg ha−1+one hand weeding.