Effect of Weed Control Methods on Growth and Development of Weeds in Sugarcane Saccharum officinarum L. Fields

Abstract

A field experiment on sugarcane was carried out during 2012-2013 season at the Indian Institute of Sugarcane Research Farm, Lucknow (UP), India to assess the effect of weed control methods on growth and development of weeds in sugarcane. The experiment was applied according to the Randomized Complete Block Design RCBD with three replications. Application of weed control methods was made at tiller stage of sugarcane crop (Variety CoSe 92423). All 14 treatments comprising various doses and time of application of sufentrazone alone or in combination with other weed control methods including other herbicides. The results have shown that the weed density and dry matter accumulation were significantly reduced due to different treatments at all the growth stages of the crop in comparison to that of control. Weed growth in terms of weed density was recorded to be the lowest with sulfentrazone (pre-em; 900 g ai/ha) at 60, 90 and 120 Day After Planting. However, the dry matter accumulation by weeds was the lowest with three-hoeing as observed at the same growth stages.