Effect of nutrient management and weed control practices on weed dynamics in wheat crop (Triticum aestivum L.)

A field experiment was conducted at Agronomy Research Farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (Uttar Pradesh) during Rabi season (2019-20) to find out the effect of nutrient management and weed control practices on weed dynamics of different treatments in wheat crop. The experiment was laid out in Factorial Randomized Block Design with three (3) nutrient levels and five (5) weed control practices. Among nutrient management 75% RDF + 10 t ha-1 FYM found better for effective control of weed density, weed dry weight, weed control efficiency (%), weed index (%) and nutrient removal by weeds. Application of Sulfosulfuron+ Metsulfuron@ 30+2 g a.i. ha-1 minimized the density and dry weight of weeds, whereas maximum weed control efficiency (91.47%) and minimum weed index (1.98%) was recorded, which was comparable with two hand weeding. This treatment having better weed control and higher nutrient uptake resulted in higher yield. It can be concluded that application of 75% RDF + 10 t ha-1 FYM with the spraying of Sulfosulfuron+ Metsulfuron@ 30+2 g a.i. ha-1 proved better to minimize the weed infestation and nutrients removal.