1Zonal Agricultural Research Station, Jhabua-457 661, Madhya Pradesh, India
2Division of Crop Research, ICAR-Research Complex for Eastern Region, Patna-800 014, Bihar, India
3Krishi Vigyan Kendra, Jhabua-457 661, Madhya Pradesh, India
4Division of Land &Water Management, ICAR RCER, Patna-800 014, Bihar, India
All India Coordinated Research Project on Maize, Zonal Agricultural Research Station, Jhabua-457 661, Madhya Pradesh, India
*Corresponding author's e-mail: kumawatandy@gmail.com
Online published on 4 April, 2018.
Characteristically boro rice is winter season, photo-insensitive, transplanted rice cultivated on supplemental irrigation, often under conditions, where farmers’ are not able to take any other rabi season crop. Butachlor, pretilachlor, bispyribacsodium and anilofos are the most commonly used herbicides for control of weeds in boro rice. Weed competition is one of the prime yield limiting biotic constraints resulting in yield reduction to the tune of 28 to 45%. Echinochloa spp., Cynodon dactylon, Portulaca quadrifida and Cyperus spp. are the major weeds responsible for yield reduction in boro rice. However, continuous and indiscriminate use of herbicides for a longer period may result in buildup of problematic weeds and also development of herbicide resistance in weeds. It is therefore, necessary to review the performance of promising herbicides for chemical weed management to improve the production and productivity of boro rice under the climate change scenario.
Boro rice, Economics, Herbicides, Weed management, Weed flora
