Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

EFFECT OF NEWLY DEVELOPED HERBICIDES ON THE GROWTH AND YIELD OF WHEAT (Pages : 1 - 4)

A field trial was conducted at Regional Wheat Research Centre, Shyampur, Rajshahi during winter season of 2007-08 to select the suitable herbicide for weed control of wheat var. Prodip. Six treatment combinations i.e. Affinity @1.5 kg/ha, Hammer @ 104 ml/ha, 2-4, D Amine @ 1200 ml/ha, U 46 @1200 ml/ha at 25 day after sowing (DAS), one hand weeding at 24 DAS and control (no weeding) were considered for this study. Four major weeds namely Chenopodium album, Cyperus rotundus, Cynodon dactylon and Vicia Sativa were observed in the experimental field. The weed population and dry weight of weeds were low with Affinity @ 1.5 kg/ha at 25 DAS and high with control plots. Among the treatments, Affinity @1.5 kg/ha at 25 DAS showed higher weed control efficiency (77.4%) which is at par with hand weeding (78.2%). Different treatments were significantly influenced grain yield and yield components of wheat. The maximum grain yield (4.28 t/ha) was obtained with Affinity @ 1.5 kg/ha at 25 DAS and hand weeding (4.35t/ha). This higher yield might be due to less weed-crop competition resulting higher absorption of nutrients and sufficient interception of sunlight as well as air circulation. The grain yield (3.93 t/ha) was found with control as anticipated. Wheat yield was found to be gradually decreased with the increase of weed populations. Download