WEED MANAGEMENT IN DRY SEEDED LOWLAND RICE

R. RAJENDRAN; N. KEMPUCHETTY and B. CHANDRASEKARAN

doi:https://doi.org/10.29321/MAJ.10.A00567

Madras Agricultural Journal

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WEED MANAGEMENT IN DRY SEEDED LOWLAND RICE

Author: R. RAJENDRAN, N. KEMPUCHETTY and B. CHANDRASEKARAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 86, Issue: jan-mar,

DOI:https://doi.org/10.29321/MAJ.10.A00567

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Abstract

Pre-emergence application of pretilachlor plus 0.3 kg a.i./ha at 3 days after seeding (DAS) with one hand weeding (HW) effectively reduced the density of dominant Trianthema portulacastrum (2.9 No.m-2) which recorded the minimum total weed dry weight (3955 g m-2) and maximum weed control efficiency (WCE) of 85.0 per cent. Pretilachlor plus did not exhibit any crop injury and recorded the maximum seedling growth characters and stand establishment leading to increased number of panicles (319 m). This treatment gave the best per hectare yield of 5.5 t and benefit cost ratio (B:C) of 3.12.

Keywords: Weed Management, Dry seeded rice, Herbicides

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