Effect of wind speed on distribution uniformity and uniformity coefficient of sprinkler irrigation system in Western Haryana

Abstract

An experiment was conducted to study the effect of wind speed (0-4 km/h, 4-8 km/h and 8-12 km/h) with lateral spacing (6 m × 9 m) on distribution uniformity of sprinkler irrigation system at the field of the village Luhana located in Western Haryana, India, during 2019-20. The basic principle used in this experiment was using the catch-cans to estimate applied water depth over the field under varying wind conditions. The distribution uniformity of the sprinkler irrigation system was determined using a low-pressure portable rotating sprinkler system. The results shows that for spacing 6 m × 9 m was used, the average distribution uniformity was highest (75.42%) at a range of wind speed 0-4 km/h followed by at ranges of wind speed 4-8 km/h and 8-12 km/h, the average distribution uniformity was 75% and 74.16% respectively and similarly the average uniformity coefficient was highest (86.33%) at a range of wind speed 0-4 km/h followed by at ranges of wind speed 4-8 km/h and 8-12 km/h, the average distribution uniformity was 84.04% and 82.05% respectively. At wind speed range 0-4 km/h, variation of uniform water distribution was less prominent. But it was observed that a range of wind speed 8-12 km/h, significant deviation from the uniformity distribution of water was observed.