Direct Seeded Rice has been commercialized as an alternative technique for rice cultivation over puddled transplanted rice for sustainability reflections (able to save scarce resources like water, labor, energy) besides DSR reduces GHG emissions, enhances soil physical properties and yield as well. Higher weed pressure observed in DSR with contribution of grasses, sedges and broad-leaved weeds. Raj et al., (2013) found that 72% of grain yield reduction occurs in DSR due to the infestation of sedges and BLWs (weed-crop competition demolish crop yield by suppressing yield attributes) together called as nongrassy weeds. Use of herbicides, an alternative over manual weeding (Rao et al., 2007) hence, usage increased in South Asia by the spread of DSR (Azmi et al., 2005). In the present autopsy, the yield attributes increased significantly by adopting various weed control treatments as compared to weed check. Though, their efficacy varied with respect to yield attributing characters

Sedges, BLWs, effective tiller, test weight, harvest index & Grain yield.

Among the different weed control treatments, the maximum mean value of the most significant yield parameters viz. number of effective tillers plant-1 (263.18), total number of grains panicle-1 (127.37) and test weight of grains (22.65 g) were respectively observed with Carfentrazone Ethyl 40 DF @ 25 g ha-1. While in case of weed management practices, the lowest value of all these yield parameters were observed under weedy check plot. Significantly highest harvest index was recorded with Carfentrazone-ethyl 40 DF @ 25 g ha-1 (47.53) which was coequal with weed free treatment (47.53). Captivated grain yield acquired with Carfentrazone Ethyl 40 DF @ 25 g ha-1; it has recorded grain yield (50.16 q ha-1) significantly higher over all the treatments. While significantly higher straw yield recorded with Pyrazosulfuron Ethyl 10 WP @ 80 g ha-1 (62.05 g ha-1).

Vijaya Rani, D., Pinto, B., Kanu, M. and Srijani, M. (2021). Predominant Sedges & Broad-Leaved Weed Management by Herbicides and its Impact on Yield Parameters, Harvest Index and Grain Yield, Straw Yield of Kharif Direct Seeded Rice. Biological Forum â€