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2002•Indian Journal of Weed ScienceRequires access

Evaluation of Pre-and Post-emergence Herbicides for their Effects on Weeds and Upland Direct Seeded Rice

B. T. S. Moorthy, Sanjoy Saba

Open publisher page 6 citations

Abstract

A field experiment was conducted at Cuttack to find out an effective pre-and postemergence herbicide for controlling weeds in rainfed upland direct-seeded rice during kharif seasons of 1998 and 1999. Butanil and quinclorac at different doses and stages of application were compared with butachlor and pretilachlor. Quinclorac at 375 g ha-1 as pre-emergence spray and butanil (butachlor+propanil) 560+560 to 840+840 g ha−1 as post-emergence spray (10 DAS) controlled weeds effectively with grain yield comparable to that of twice hand weeding done 20 and 40 days after sowing (DAS).

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What this paper is about

A field experiment was conducted at Cuttack to find out an effective pre-and postemergence herbicide for controlling weeds in rainfed upland direct-seeded rice during kharif seasons of 1998 and 1999. Butanil and quinclorac at different doses and stages of application were compared with butachlor and pretilachlor. Quinclorac at 375 g ha-1 as pre-emergence spray and butanil (butachlor+propanil) 560+560 to 840+840 g ha−1 as post-emergence spray (10 DAS) controlled weeds effectively with grain yield comparable to that of twice hand weeding done 20 and 40 days after sowing (DAS).

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OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A field experiment was conducted at Cuttack to find out an effective pre-and postemergence herbicide for controlling weeds in rainfed upland direct-seeded rice during kharif seasons of 1998 and 1999. Butanil and quinclorac at different doses and stages of application were compared with butachlor and pretilachlor. Quinclorac at 375 g ha-1 as pre-emergence spray and butanil (butachlor+propanil) 560+560 to 840+840 g ha−1 as post-emergence spray (10 DAS) controlled weeds effectively with grain yield comparable to that of twice hand weeding done 20 and 40 days after sowing (DAS).

Key concepts: Butachlor, Propanil, Kharif crop, Sowing, Agronomy, Biology, Veterinary medicine, Upland rice

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