Effect of irrigation and weed management on growth and yield of wheat (Triticum aestivum)

Abstract

The experiment was done at the Crop Research Farm at Dev Bhoomi Uttarakhand University Dehradun, Uttarakhand, India. The farm is above 410 meters above sea level and is situated at 30.3841oN latitude and 77.9326o E longitude. Split plot design was used to test twelve different combination of irrigation and weed management, as well as different herbicide doses and hand weeding. The results showed that irrigation and weed management had a significant effect on plant height, no. of tillers, dry weight, leaf area index, crop growth rate, relative growth rate and yield attributes such as no. of effective tillers, no. of grains/ear, test weight, harvest index. I3 (CRI + Tillering + booting + ear emergence + grain filling) and W2 (2 handweeding at 25 and 45 DAS) are best for weed management, growth and yield. Both of the treatment I2 (CRI + Tillering + Booting + Grain filling) and W3 (Sulfosulfuron @ 25 g/hac) did about well, which shows that the right use of herbicide and irrigation can effectively control weeds and increase wheat yield.