Author(s): Shakshi Dubey, Dr. Priyanka Bankoti and Garima Kaushik Parashar

Abstract: A field experiment was planned and conducted in Rice field during 2022 at crop research Centre Shri Guru Ram University, School of Agricultural Sciences, Dehradun, Uttarakhand. To investigate the “Response of weed Management Practices on Growth of Upland Direct Seeded Rice’’. The experiment was laid out in randomized block design with three replications and eight treatments viz., No mulch with weed management (hand weeding at every 15 days Interval), Hand weeding twice at 20 DAS and 45 DAS, mulching with biodegradable polythene sheet 25 DAS, Wheat straw mulch 5 T/ha+ Hand weeding 20 DAS, manually weeding, Rice straw mulching 5 T/ha + Hand weeding 20 DAS, Green leaf mulching 5 T/ha + Hand weeding 20 DAS and Weedy check. Rice variety Pusa Basmati-1509 was used as a medium of trial. Densities of total weeds were reduced significantly by application of mulches or other treatments and dry weight of weeds (grasses, sedges and broad leaves weeds) was also affected by the use of mulches and other treatments of weed management. Different treatments of weed management significantly improved the agronomic traits of Direct Seeded Rice (DSR). Mulching with biodegradable polythene sheet 25DASresulted in maximum plant height (82.26 cm), Dry matter production of crop plant (14.871 g/m2) and Leaf area Index (4.620).The result showed that various growth parameters like plant height, Dry matter production of crop plant (g/m-2), and leaf area index. A periodic observation of various parameters was taken from five tagged plants at net plot of various stages of crop growth and was subjected to analysis of variance (ANOVA).

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