Weed management in direct-seeded rice (Oryza sativa) in central India
Keywords:Agro-ecosystems, Bispyribac sodium, Direct-seeded rice, Weeds, Weed management
A field experiment was conducted in a split-plot design with 3 replications at Research Farm, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (Madhya Pradesh), during the rainy (kharif) season of 2019, to evaluate the performance of different herbicides in direct-seeded rice (Oryza sativa L.). The experiment comprised of 2 main plots, viz. rainfed and irrigated, and 8 weed-control treatments, viz. bispyribac sodium at 25 g/ ha, fenoxaprop-p-ethyl at 60 g/ha, fenoxaprop-p-ethyl + penoxsulam at 60 + 26.7 g/ha, cyhalofop + penoxsulam at 135 + 26.7 g/ha, bispyribac sodium + metsulfuron-methyl + chlorimuron ethyl at 25 + 4 g/ha, triafamone + ethoxysulfuron at 40 + 20 g/ha, hand-weeding twice and weedy check, in subplots. The dominant weeds associated with direct-seeded rice experimental field were mainly comprised monocot, viz. jungle rice [Echinochloa colona (L.) Link] and Bermuda grass [Cynodon dactylon (L.) Pers.], sedge, viz. nutgrass [Cyperus iria (L.)], and dicot weed such as sissoo spinach [Alternanthera sessilis (L.) R. Br. ex DC.]. The results indicated that, post-emergence application of bispyribac sodium at 25 g/ha at 20 days after sowing (DAS) recorded the highest weed-control efficiency (87.75%), followed by fenoxaprop-p-ethyl + penoxsulam at 60 + 26.7 g/ha. Higher grain yield (3.09 t/ ha) was recorded with weed-free treatment which was at par with bispyribac sodium at 25 g/ha.
Bhattacharya, Urjashi, Ghosh, Alindip, Sarkar, Smritikana and Maity, Shrabanti. 2022. Response of rice (Oryza sativa L.) to weed management methods in the lower Gangetic Plain Zone. Indian Journal of Agricultural Research DOI: 10.18805/IJARe.A-5919.
Bijarnia, Harish Kumar, Bijarnia, Shankar Lal, Bhan, Manish, Bijarnia, Anju, Meena, Ajit Kumar and Bijarnia, Arjun Lal. 2022. Effect of crop establishment methods and weedcontrol treatments on yield, weed density, weed dry weight, weed index and weed-control efficiency in rice. Agricultural Mechanization in Asia, Africa and Latin America 53(1): 5,425–5,432.
Choudhary, V.K. and Dixit, A. 2018. Herbicide weed management on weed dynamics, crop growth and yield in direct-seeded rice. Indian Journal of Weed Science 50(1): 6–12.
DoES, GOI. 2018. Pocket Book of Agricultural Statistics-2018. Directorate of Economics and Statistics, Ministry of Agriculture and Farmers Welfare, Department of Agriculture, Cooperation and Farmers Welfare. Government of India, New Delhi.
India Stat. 2017–18. http://www.indiastat.com/defaul t.aspx.
Padhan, Smruti Ranjan, Rathore, S.S., Prasad, Shiv Mangal, Shekhawat, Kapila and Singh, V.K. 2022. Influence of precision nutrient and weed management on growth and productivity of direct-seeded upland rice (Oryza sativa) under Eastern Plateau and Hills Region. Indian Journal of Agronomy 66(3): 47–50.
Rao, A.N., Wani, S.P., Ramesha, M. and Ladha, J.K. 2015. Weeds and weed management of rice in Karnataka State, India. Weed Technology 29: 1–7.
Satapathy, B.S., Duary, B., Saha, S., Munda, S., Singh, T. and Chatterjee, D. 2020. Yield and economics of drum-seeded rice (Oryza sativa) as influenced by broadspectrum herbicides and herbicide mixtures. Indian Journal of Agronomy 65(1): 41–46.
Verma, Badal, Bhan, Manish, Jha, A.K., Singh, Vikash, Patel, Rajendra, Sahu, M.P. and Kumar, Vijay. 2022a. Weed management in direct-seeded rice through herbicidal mixtures under diverse agroecosystems. Agricultural Mechanization in Asia, Africa and Latin America 53(4): 7,299–7,306.
Verma, Badal, Bhan, Manish, Jha, A.K., Khatoon, Shahiba, Raghuwanshi, Monika, Bhayal, Lalita, Sahu, M.P., Patel, Rajendra and Singh, Vikash. 2022b. Weeds of direct-seeded rice influenced by herbicide mixture. Pharma Innovation 11(2): 1,080–1,082.
Yogananda, S.B., Thimmegowda, P. and Shruthi, G.K. 2022. Performance of sequential application of pre- and post-emergence herbicides for management of weeds in aerobic rice (Oryza sativa). Indian Journal of Agronomy 67(1): 12–19.