Journal ID : AMA-13-05-2024-13039
[This article belongs to Volume - 55, Issue - 05]
Total View : 474

Title : Effect of different weed management approaches on yield, economics and weed dynamics under direct seeded basmati rice

Abstract :

Using randomised block design (RBD) and fourteen treatments that were replicated three times, a study was conducted at SKUAST-Jammu's Research Farm in Chatha during the kharif, 2022 to examine the effects of various weed management strategies on yield, economics and weed dynamics under direct seeded basmati rice. The findings showed that among conventional approaches of weed management, mechanical weeding (MW) at 20 and 40 DAS have significantly increased yield attributes such as the number of productive tillers per m2, number of grains per panicle and as a result, increased grain and straw yield (q/ha) but recorded non-significant values for 1000-grain weight (g). Additionally, MW demonstrated the greatest weed control efficiency and noted a considerable decrease in the dry biomass and density of weeds. This treatment also provided highest net returns and B: C ratio. The study found that among leguminous mulches, surface mulching with dhaincha by cutting (SMDC) provides noticeably higher yield attributes, grain and straw yield, net returns and B:C ratio. Furthermore, weed biomass and density were much lower thus, weed control effectiveness was at its highest. In light of the results, the study recommends that in DSR conventional approach i.e. mechanical weeding and herbicide application were more effective for controlling weeds but the alternative eco-friendly approach using leguminous crops and incorporating through cutting can also be the viable option for controlling weed, thereby increasing the productivity and profitability.

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