EVALUATION OF WHEAT AND WEED GROWTH UNDER DIFFERENT MULCHING AND ORGANIC AMENDMENTS
AbstractWeeds which seriously threaten wheat production are directly affected by cultural practices and nutrients management. Efficient weeds control in wheat will help to reduce problems associated with it. Different mulching materials were used during the course of the experiment with and without biochar. The experiment consisted of two factors such as Biochar (0 and 5 ton ha-1) and mulching (Control, Plastics, paper and sorghum residues as mulch material) were used in the study. The experiment was conducted during winter 2017-18 at Abdul Wali Khan University research farm in Mardan, Pakistan. All treatments were laid out triplicate in randomized complete block design with a split plot arrangement. Biochar was allotted to main plots while mulching treatments were assigned to the sub plots. Wheat variety Siran 2007 was sown on 13th November, 2017. Results showed that different mulching material significantly affected weeds population, fresh and dry weight along with relative water content of weeds. Plastic and sorghum mulching performed better than paper mulching and no mulching. Weeds density was drastically reduced and wheat yield was positively improved in plastic and sorghum mulching compared to no mulching. Biochar significantly compressed weeds population and growth however, wheat yield and growth was also negatively affected by biochar application. Hence, plastic mulching is recommended for efficient weeds control and convincingly wheat yield improvement.