Effects of Different Ways of Micro-moist Irrigation on Growth and Yield of Maize

An experiment was conducted to study the effect of different ways of micro-moist irrigation on growth and yield of maize under different buried depths, spacing and pressures of micro-moist irrigation. The results showed that the dry matter accumulation of micro-moist irrigation was different from that of drip irrigation; the stem diameter, height and yield increased with the water consumption; membrane drip irrigation had the highest yield which increased by 33.13%，34.48%，26.82% and 63.94%, compared with T1, T2, T3 and T4. Water use efficiency (WUE) of micro-moist irrigation was higher than that of drip irrigation, all treatments had no significant difference, WUE of T2 was the highest, and it had a significant difference with drip irrigation. Micro-moist irrigation was beneficial to the development of maize-seed and to the increase of grain mass. The effect of different micro-moist irrigation on the maize yield and WUE was significant under different buried depths, spacing and pressures. The pressure mainly influenced maize yield and WUE, and the spacing mainly influenced water consumption.