Vol. 5, Issue 2 (2017)
Performance of different herbicides in transplanted basmati rice (Oryza sativa L.) under different conditions
Author(s): Rajveer Singh Yadav, Vivek, Vinod Kumar Tiwari, Vineet Kumar, RK Naresh, Ashish Dwivedi and Ankit Kumar
Abstract: A field experiment was conducted in rice during kharif season 2011-12 on sandy loam soil 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 viz., weedy in puddled condition, weed free in puddled condition, Pretilachlor @ 750 g a.i./ha in puddled condition, Oxyfluorfen @ 200 g a.i./ha in puddled condition, Pyrazosulfuron @ 20 g a.i./ha in puddled condition, weedy in unpuddled condition, weed free in unpuddled condition, Pretilachlor @ 750 g a.i. /ha in unpuddled condition, Oxyfluorfen @ 200 g a.i./ha in unpuddled condition and Pyrazosulfuron @ 20 g a.i./ha in unpuddled condition. The results indicated that chemical methods of weed control significantly reduced the weed population effectively over weedy check. The tallest plants, highest dry matter accumulation, nutrient uptake and grain yield (48.57 & 42.76 q/ha) were recorded with the application of Pretilachlor @ 750 g a.i./ha, which established its superiority over rest of the herbicides in puddled and unpuddled conditions. The total nitrogen, phosphorous and potassium uptake by rice crop was also highest under this treatment as 110.42 & 94.82, 30.05 & 26.97 and 124.56 & 117.23 kg/ha respectively in puddled and unpuddled conditions. Unlike that Significantly higher content and uptake of nitrogen, phosphorus and potassium were recorded with the application of Pyrazosulfuron @ 20 gai/ha in puddled condition. With the application of pretilachlor @ 750 g a.i./ha the per cent increase in grains and straw yield was 46.1 & 39 and 40.15 & 47.78 as compared to weedy check in both conditions.
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How to cite this article:
Rajveer Singh Yadav, Vivek, Vinod Kumar Tiwari, Vineet Kumar, RK Naresh, Ashish Dwivedi, Ankit Kumar. Performance of different herbicides in transplanted basmati rice (Oryza sativa L.) under different conditions. Int J Chem Stud 2017;5(2):305-309.
