Vol. 12, Issue 10 (2023)

Author(s):
Satish Kumar Yadaw, Dr. Angad Singh Rajput, Dr. Tej Lal Kashyap, Prashant Uraon and Sanjay Kumar

Abstract:
The present investigation aimed to evaluate the “Effect of integrated weed management on yield and economics of rice (Oryza sativa L.) in Vertisols of Chhattisgarh” during the kharif season of 2022 at the Instructional Farm, Alesur, DKS, College of Agriculture and Research Station, Bhatapara (C.G.). The study was conducted using a Randomized Block Design (R.B.D.) with 10 treatments, each replicated 03 times. Notably, the treatment labeled as "Weed-free check" (W2) demonstrated superior results in terms of higher panicle count, longer panicle length, increased grain yield and better test weight, showcasing its effectiveness in weed control and its subsequent positive impact on rice growth. Moreover, the integration of pre-emergence herbicide with hand weeding (W4) showed promising outcomes for weed management and yield improvement. Economic parameters, including the cost of cultivation, gross income, net income and benefit-cost ratios, also highlighted the economic benefits of effective weed management. Treatment W2 (Weed-free check) led to the highest gross returns and net returns, emphasizing the importance of weed control for economic viability. In conclusion, the study indicated that treatment W2 (Weed-free check) and W4 (Pyrazosulfuron Ethyl 10% WP @ 20 g a.i. ha^-1 at 3 DAT (PRE) + Hand weeding at 20 DAT) showed superior results in terms of, plant growth and yield and yield attributes. These findings emphasize the importance of effective weed management practices to achieve better economic outcomes in rice cultivation in Vertisols of Chhattisgarh.