Madras Agricultural Journal
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Comparative Efficiency of Herbicides in Rice (Var. IR. 20) Under Different Methods of Planting

Abstract

Experiments were conducted to study the weed control efficiency of herbicides in rice (var. IR. 20), using two forms of pre-emergence herbicides, namely, butachlor (EC) and G) and a post-emergence herbicide. propanil. The pre-emergence application of butachlor [G] at 2.0 kg ai/ha and a post-emergence spray of propanil at 3.5 lit. a i./ha gave the best and economical weed control both under direct sown and transplanted condi- tions.

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