International Journal of Chemical Studies
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Online ISSN: 2321-4902, Print ISSN: 2349-8528   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW
International Journal of Chemical Studies
Vol. 7, Issue 1 (2019)

Yield, factor productivity and profitability as influenced by different herbicides in transplanted basmati rice (Oryza sativa L.)

Author(s): Rajveer Singh Yadav, Vivek, Vinod Kumar Tiwari and Ashish Dwivedi
Abstract: Weeds are the cause of serious concern on yield reduction in rice production worldwide. Losses caused by weeds vary from one country to another country, depending on the predominant weed flora and on the control methods practiced by farmers. Keeping view in mind a field trial was conducted during kharif season 2011-12 on sandy loam soil to study the yield, factor productivity and profitability as influenced by different herbicides in transplanted basmati rice at Crop Research Centre, Chirauri of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.). The experiment was conducted in R.B.D with three replications comprising ten treatments of weed management. The results indicated that chemical methods of weed control significantly reduced the total weed population (m-2) and weed dry weight (gm-2), while increased weed control efficiency effectively over weedy check. The highest number of tillers (m-2) at harvest, filled grains panicle-1, unfilled grains panicle-1, grain yield (q/ha), biological yield (q/ha) and harvest index (%) were recorded with the application of Pretilachlor @ 750 g a.i./ha, which showed its superiority over rest of the herbicides in puddled and unpuddled conditions. The per cent increase in grains and biological yield was 46.1 & 39% and 40.15 & 47.78% as against weedy check in both conditions. The nitrogen, phosphorous and potassium content and uptake in grain and straw by rice crop was also highest under Pretilachlor @ 750 g a.i./ha in puddled and unpuddled conditions. Besides it had highest net return (Rs 65532.24 & 56472.14/ha) and B: C ratio (2. 03 & 2.09) was obtained under the treatment receiving Pretilachlor @ 750 g a.i./ha in puddled and unpuddled conditions, respectively. Thus, application of Pretilachlor @ 750 g a.i./ha proved better to obtained higher yield and also fetches more profit, besides suppressing weed in transplanted basmati rice
Pages: 51-55  |  146 Views  19 Downloads
How to cite this article:
Rajveer Singh Yadav, Vivek, Vinod Kumar Tiwari and Ashish Dwivedi. Yield, factor productivity and profitability as influenced by different herbicides in transplanted basmati rice (Oryza sativa L.). International Journal of Chemical Studies. 2019; 7(1): 51-55.
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