EFFICACY OF CHEMICAL HERBICIDES ON MANAGEMENT OF WEED AND YIELD OF WHEAT AT DANG NEPAL

Journal: Acta Chemica Malaysia (ACMY)
Author: Prabal Pokharel, Civir Shrestha, Prabin Poudel, Mohan Mahato, Kabita Shah
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2025.94.99

Weed infestation is a significant factor contributing to low wheat yields, particularly in developing regions like Nepal. This study evaluates the efficacy of various chemical herbicides in controlling weeds and their impact on wheat yield in Dang District during the 2022-2023 growing season. Eight treatments were tested, including weedy, weed-free, and various herbicide combinations, using a Randomized Complete Block Design(RCBD) with three replications. Results indicated that chemical treatments significantly affected weed diversity, plant height, grain yield, and economic returns. The combination of Metribuzin + 2, 4-D showed the lowest weed diversity and highest grain yield (2.31 t/ha), while Sulfosulfuron + 2, 4-D yielded the highest netreturn (14.71 thousand Rs/ha) and B:C ratio (1:1.19). These findings underscore the importance of effective weed management strategies in enhancing wheat production and ensuring food security in Nepal.