中文摘要：

为研究不同类型地膜覆盖在河套灌区农业生产中的适用性,同时筛选出适宜灌区玉米种植的地膜覆盖类型。试验设置普通地膜、生物地膜、液态地膜和不覆膜4个处理,研究了不同覆盖处理对玉米出苗率、生长状况、产量及水分利用效率的影响。结果表明：生物地膜覆盖条件下各指标与普通地膜覆盖差异性不显著（P〉0.05）,但出苗率平均较液态地膜和不覆膜处理高7.65%和8.24%,差异性达到显著或极显著水平。生物地膜覆盖玉米地上部干物质累积量、株高和叶面积指数均显著高于液态地膜和不覆膜处理（P〈0.05）,且在玉米生育前、中期差异性更为显著。生物地膜覆盖玉米产量平均较液态地膜和不覆膜处理高12.63%和14.69%,水分利用效率高13.55%和20.47%,差异性显著（P〈0.05）。综合分析,河套灌区春玉米种植适宜采用生物地膜覆盖的方式。

英文摘要：

Wi duction, also dinary film, b th the objective to figure out the availability of different types of film mulching in agricultural proselect the suitable types of film mulching for Hetao Irrigation District, four treatments including oriodegradable film ,liquid film and non film were used to compare the effects of different film mulching treatments on maize seeding emergence rate, growth status, yield and water use efficiency. The results show that no significant difference were observed between biodegradable film and ordinary film for each index （ P 〉 0. 05 ）. However, the average seeding emergence rate for biodegradable film are 7.65% and 8.24% higher than the liquid film and non film treatment, reach a significant or large significant level. Maize dry matter accumulation of above ground part, plant height and leaf area index are remarkably higher than liquid film and non film treatment （ P 〈 0.05 ）, and the difference is more significant in the early and middle stage of maize growth. The maize yield of biodegradable film are increased 12.63% and 14.69%, the water use efficiency are enlarged by 22.18% and 22.56% than liquid film and non film treatment, separately, and the difference is significant （P 〈 0.05 ）. Comprehensive analysis , it is suitable for the cultivation of spring maize in the way of biodegradable film mulching in Hetao Irrigation District.