New Irrigation Systems Reduce The Use Of Water In Cotton Production

This study was conducted to evaluate the effects of various levels of water and N application through water drip irrigation on seed cotton yield and water use efficiency (WUE). In this experiment, three levels of water quality (Epan 0.4, 0.3, 0.2) and three levels of N (100, 75 and 50% of recommended N, 75 kg/ha) (Normal sowing, NS, paired sowing, PS). As a result, the yield of seed cotton increased from 1,244 kg/ha to 3244% in the watershed's check-basin method when the same amount of irrigation water and N were applied through the drip irrigation system. When the amount of water through the droplets was reduced to 75%, the increase in seed cotton yield was 12%; However, when the water was reduced to 50%, the yield was 2% lower than the check watershed. Decrease of N through fertilizer led to a decrease in seed yield at all levels, but the decrease was highest at the highest level of water supply. In the case of paired seeding (PS), the yield of seed cotton was 20% higher than that of NS water quality test with 50% water saving. 

The sacrifice of seed cotton yield of 9% compared to NS in paired sowing was one aspect of the two pairs of rows, saving side costs and 50% water. WUE increased by 26% (22.1 / ha cm to 17.1 kg) in the water drip irrigation system when the same amount of water and N fertilizer was applied compared to the watershed. The WUE was not affected by the amount of water, but as the proportion of N decreased, the WUE decreased in all amounts of water applied. Generally, WUE was higher in PS compared to NS. Nitrogenic efficiency of seed cotton per kg of N applied with the same amount of water and N when compared to yield increased from 21.65 to 28.59 kg. However, a reduction in the amount of applied water resulted in a decrease in the agricultural efficiency of N, but the opposite of the applied N ratio. When applying the same amount of water and N in both cultivation methods, PS increased the seed surface yield by 22% and reduced the cost by half of the required number of sides.

Read More At Netafim India Cotton Irrigation Methods