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1974•Madras Agricultural JournalOpen access

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

P. Rethinam, Sindhuja Sankaran

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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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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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Available 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.

Key concepts: Butachlor, Propanil, Weed control, Sowing, Agronomy, Weed, Transplanting, Biology

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