Vol. 11, Issue 10 (2022)

Author(s):
Jakkannagari Chaithanya, Vivek, RK Naresh, BP Dhyani, Ravindra Kumar and Adesh Singh

Abstract:
A field experiment was carried out at the Crop Research Center, SVPUA&T, Modipuram, Meerut, U.P. during the Rabi seasons of 2020-21 and 2021-22 to study the effect of pre and post emergence application of herbicides on wheat under different nutrient management practices. The soil texture of the experimental field was sandy loam, with low organic carbon and available nitrogen, medium available phosphorus and potassium, and slightly alkaline reaction. The treatments comprised of all possible combinations of the two factors, viz., Nutrient management (04) and weed control practices (06). Total twenty four treatment combinations were laid out in a factorial Randomized Block Design with three replications. The results indicated that, the nutrient management and weed control practices significantly influenced the yield of wheat and nutrient availability of soil after crop harvest during both the years. The treatment 75% NPK + 25% N through press mud found significantly higher grain and straw yield over the other nutrient management practices, but it was remain at par with 75% NPK + 25% N through FYM. While, significantly nutrient availability was observed with the application of 75% NPK + 25% N through press mud compared to control. Moreover, weed free treatment recorded significantly superior yield of wheat. Among the herbicides, Sulfosulfuron @ 25 g a.i. ha^-1 PoE gave significantly higher grain and straw yield, while it was remain at par with Pendimethalin @ 1 kg a.i ha^-1 as PE. Among the weed management practices weedy free treatment found significantly available nutrients compared to Control (Unweedy check), but among herbicides Sulfosulfuron @ 25 g a.i. ha^-1 PoE observed higher values of nutrient availability. Therefore concluded as among the treatment combinations 75% NPK + 25% N through press mud along with Sulfosulfuron @ 25 g a.i. ha^-1 PoE found to be beneficial the for productivity of wheat crop and fertility of soil after harvest.