以膜下滴灌作对照,共设5个处理,研究了微润灌溉条件下不同埋设深度、间距和压力对玉米生长及产量的影响.结果表明,微润灌溉的玉米单株干物质积累趋势异于膜下滴灌；玉米茎粗、株高和产量随耗水量的增加而增加；膜下滴灌(CK)的产量最高,与微润灌溉处理有极显著差异,分别比T1、T2、T3和T4高33.13％、34.48％、26.82％和63.94％;微润灌溉的水分利用效率较膜下滴灌高,各处理无极显著差异,最高的为T2处理,且与膜下滴灌有显著差异；微润灌溉有利于玉米籽粒发育,使籽粒饱满,百粒质量增加；在不同的微润灌溉处理下,微润管的埋设深度、间距和压力对玉米的产量和水分利用效率都有显著的影响,其中压力对玉米产量和水分利用效率影响最大,间距对耗水量的影响较大.%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 Tl, 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.
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