A review on impact of herbicides on weeds in wheat

Abstract

Weed infestation would be major restriction in the production of wheat because weeds competes with plants for moisture, nutrients, light. As the wheat crop observed in various agroclimatic conditions different irrigation regimes, cropping sequences, it is infested with diverse type of weed flora. Depending on the type of weeds, their density and environmental factors, yield losses will vary. Weeds are most harmful to the crops. Weeds interfere with the crops during different crop growth stages. There by it reduces the growth and yield of the crop drastically. Therefore, different weed management practices have been taken to reduce the crop weed competition, especially by using herbicidal treatments. For mitigating weeds in the wheat crop, growers mainly depends on herbicides, as they are cost effective. The herbicides should be selected appropriately on the basis of selectivity, so they do not harm the main crop. All the pre and post emergence herbicides were proven to be efficient in reducing weed density, dry accumulation of weeds and significantly maximum N, P, K uptake, protein content and yield over rest of the weed control treatments.