Efficiency of Different Herbicides alone and their Combination with optimum time of Application to Control weeds in potato (Solanum Tuberosum L.) in Haryana

Raj Kumar, A. K. Bhatia and Davinder Singh

Department of Vegetable Science College of Agriculture Ccs Haryana Agricultural University, Hisar-125004.

Corresponding Author E-mail: rajdharival@gmail.com

DOI : http://dx.doi.org/10.13005/bbra/2464

ABSTRACT: The experiment was conducted during Rabi season of 2013-14 to study the efficacy of different herbicides alone and their combination to control weeds in potato crop. Among the different herbicides studied pre-emergence application of atrazine @250 g/ha alone have been found more efficient in controlling  both monocot and dicot weeds with higher weed control efficiency (99.1%) as  compared to atrazine @125 g/ha with metribuzin@175 g/ha as pre-emergence and with paraquat@35 g/ha as post-emergence. The maximum potato yield, nutrient uptake by potato crop and minimum nutrient uptake by weeds was recorded in weed free (425.8q/ha) while pre-emergence application of atrazine @250 g/ha gave higher significant results followed by pendimethalin@1000g/ha as pre-emergence. However, maximum nutrient uptake by weeds was recorded with weedy check. The highest benefit: cost ratio was noticed in atrazine @250 g/ha pre-emergence (2.72) compared to other herbicides and conventional weed management practices.

KEYWORDS: Efficacy;  Herbicide; Potato Weed;Yield;

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