Abstract:The field experiment was conducted to study the effect of weed management practices on productivity of wheat (
Triticum aestivum L.) during
rabi season of 2016-17 at Agronomy Farm of Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad (U.P.). Post emergence application of Sulfosulfuron + metsulfuron @ 30+2 g ha
-1 being at par with hand weeding @ 20 & 40 DAS and Fenoxaprop P-ethyl + Metribuzin @ 100+75 gha
-1 where significantly reduced the density and dry weight of weeds as compared to other treatments. The post emergence application of Sulfosulfuron + metsulfuron (Total) @ 30+2 g ha
-1 significantly increased, all the growth and yield contributing characters
viz., Plant height, leaf area index, dry matter accumulation, length of spike, effective shoots, no. of grains spike
-1, test weight, grain, straw and biological yield obtained. Nitrogen and protein content in grain was not affected significantly. Thus Sulfosulfuron + metsulfuron @ 30+2 g ha
-1 were found higher than the rest of treatments. Sulfosulfuron + metsulfuron @ 30+2 g ha
-1 was recorded the highest net return of 59641 Rs.ha
-1 and benefit cost ratio (1.76) followed by Clodinafop + Metsulfuran @ 60+4 g ha
-1 Rs. ha
-1 and benefit cost ratio (1.63).
Thus, it is concluded that for effective weed control and higher return of post emergence application of Sulfosulfuron + metsulfuron @ 30+2 g ha-1 herbicide applied at 25-30 days after sowing may be adopted in wheat crop.