Direct Seeded Rice (DSR): Benefits, Challenges & Weed Management Protocol (2027 Guide)

A complete practical agronomic manual for Direct Seeded Rice (DSR) in India. Learn laser land leveling, seed priming, pre- and post-emergence herbicide scheduling (Pendimethalin, Bispyribac), and 30% water savings.

Fact-Checked & Verified: November 2026 • Aligned with Official Guidelines
AG
AgriStart Academic DirectorateRice Agronomy & Weed Science Directorate • Peer-Reviewed by Top National Rankers

Comprehensive DSR Weed Control Schedule

Effective weed management in DSR requires a two-tier chemical strategy combining pre-emergence and post-emergence herbicides:

Application StageTiming (DAS)Recommended Herbicide & DoseTarget Weed Spectrum
Pre-Emergence Spray0 - 2 days after sowingPendimethalin 30 EC @ 1.0 kg a.i./ha or Pendimethalin 38.7 CSAnnual grasses (Echinochloa) & small-seeded broadleaf weeds
Early Post-Emergence18 - 22 DAS (2-3 leaf stage of weeds)Bispyribac-sodium 10 SC @ 25 g a.i./ha (100 ml/acre)Echinochloa crus-galli, E. colonum, broadleaf weeds
Broadleaf & Sedge Post20 - 25 DASPyrazosulfuron-ethyl 10 WP @ 20 g a.i./ha or Almix (Metsulfuron + Chlorimuron)Cyperus rotundus, Cyperus difformis, Eclipta alba
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