Weed management is one of the traditional operations in crop production. Due to labour costs, time and fully manual weeding is unfavourable. Competition in the early stage of growth and failure to control weeds in the first three weeks after transplanting, reduce the yield by 50 percent in rice. Manual weeding requires huge labor force and accounts for about 25 percent of the total labor requirement which is usually 900 to 1200 man h/ha. Using mechanical weeders in rice cultivation and other row crops have been common practice in now a day. Cono weeder is one of best tools for weeding in SRI Rice cultivation which compare with hand weeding causes a considerable reduction in labour costs and time consuming.
Ayyadurai P.*
Department of Crop Management, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Vazhavachanur, Thiruvannamalai, Tamil Nadu (606 753), India
R. Thiyagarajan
Department of Farm Machinery and Power, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu (641 003), India
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Shukla, U.N., Srivastava, V.K., Singh, S., Sen, A., Kumar, V. 2014.Growth, yield and economic potential of rice as influenced by different age of seedlings, cultivars and weed management under SRI. Indian Journal of Agricultural Sciences. 84(5): 628-636.
Konda Babu, P., Govinda Rao, S., 2017. Manually Operated Dry Land Weeder: A Study, International Journal for Modern Trends in Science and Technology, 3(7), 27-33.