Productivity of Dry Direct Seeded Rice as Influenced by Herbicide Combinations
P. Spandana Bhatt. P, P. Raghu Rami Reddy, NRG Varma, TK Babu, L. Krishna, YC Mohan, T. Ramprakash
International Journal of Environment and Climate Change · pp. 81–94 · Published 1 Mar 2024
10.9734/ijecc/2024/v14i34021Abstract
A field experiment was conducted during Kharif, 2022, in Institute of Rice Research, Rajendranagar, Hyderabad in Telangana state, India. Fourteen weed management practices were evaluated in a randomized complete block design, replicated thrice. Weed management in Dry DSR can be done by adopting mechanical/ Hand weeding at 20, 40, 60 DAS under labour available conditions. Under labour scarcity conditions PE application of Pendimethalin 38.4% + Pyrazosulfuron ethyl 0.85% ZC 900 + 20 g/ha (Ready mix) followed by Metsulfuron Methyl 10% + Chlorimuron ethyl 10% WP 4 g/ha + Cyhalofop Butyl 10% EC 75g/ha (Tank mix) PoE weed followed by mechanical weeding at 40-45 DAS is the best option. Other suitable Pre emergence herbicides that can be used are Pyrazosulfuron ethyl 10% WP 20 g/ha, Pendimethalin 38.4% + Pyrazosulfuron ethyl 0.85% ZC 900 + 20 g/ha (Ready mix) and Pendimethalin 38.7 % CS 677.25 g/ha. Post emergence application of Triafamone 20% + Ethoxysulfuron l0% WG 44+22.5 g/ha (Ready mix) and Penoxsulam 1.02 % + Cyhalofop-butyl 5.1% OD 135 g/ha (Ready mix) at 2-4 weed leaf stage.
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