近年来,山东晚茬麦面积不断扩大。实践证明:应用地膜覆盖是提高晚茬麦单产的有效措施。1985年惠民地区晚茬麦覆膜面积41,128亩(其中麦棉间作35,000亩),试验比同期播种的露地小麦平均亩增89.5公斤,增产26.6%。晚茬麦覆膜栽培增产的重要原因是改善了麦田的小气候,促进了小麦的营养生长和生殖生产。为了探明地膜覆盖麦田 In recent years, the area of ​​late-crop wheat in Shandong continues to expand. Practice has proved that the application of plastic film mulching is an effective measure to improve yield of wheat under late cropping. In 1985, 41,128 mu of late crop wheat cropping area was planted in Huimin (35,000 mu of wheat-cotton intercropping). The average mu of open-field wheat planted in the same period increased by 89.5 kg and the yield increased by 26.6%. The main reason for increasing yield of wheat by late cropping is to improve microclimate of wheat field and promote vegetative and reproductive production of wheat. In order to prove the mulching of wheat fields