Vol. 12, Issue 5 (2023)

Author(s):
Ajit Kumar, Dr. Prabhat Kumar Chaturvedi, Rakesh Kumar and Dhyan Singh Yadav

Abstract:
A field experiment entitled "Wheat (Triticum aestivum L.) Yield and yield component as influenced by herbicide and their mixture" was conducted during rabi season of 2020-21 at Crop Research Farm of National Post Graduate College, Barhalganj, Gorakhpur (U.P.). The experiment was conducted in R.B.D and sown on 5^th December 2020 with three replications comprising nine treatments of weed management i.e. T1-Weedy, T2-Hand weeding 20 + 40 DAS, T3-Metribuzine 70% W P 0.30 (30 DAS), T4-Clodinafop-Propagules 15% W P 0.40 (30 DAS), T5-Metsulfuron Methyl 20% W P 0.02 (30 DAS), T6-Sulfosulfuron 75% W P 0.033 (30 DAS), T7-Metribuzine + Metsulfuron 0.30 + 0.02 (30 DAS), T8-Clodinafop + Metsulfuron 0.40 + 0.02 (30 DAS) and T9-Metsulfuron + Sulfosulfuron 0.02 + 0.033 (30 DAS) as post emergence with the objective to identify suitable herbicide, their appropriate rate and time of application for weed control during rabi season. The soil of the experimental field was silty loan in texture with low, medium and high in N, P and K, respectively. The experimental site is situated in subtropical zone in indo gangetic planes. The crop was harvested on 18^th April 2021. The result indicated that the different weed management methods in terms of plant height, number of tillers per hill, dry weight, length of spike, number of grains per spike, test weight, grain yield, straw yield, harvest index, weed dry weight, weed control efficiency, gross return (Rs/ha), net return (Rs/ha.) and B:C ratio, respectively were significantly highest with the treatment T9-Metsulfuron + Sulfosulfuron 0.02 + 0.033 (30 DAS) over rest of the treatment, except treatment T8 i.e. Clodinafop + Metsulfuron 0.40 + 0.02 (30 DAS), which were at par to each other.