一、定期刨大行。于晴天上午揭开大行内的地膜,用三齿钩刨大行,深度15～20厘米。刨后搂平,重新把地膜盖好。深刨后,膜下土壤变得粗糙松软,吸热蓄热能力增强。二、大行盖草。揭起大行内的地膜,然后深刨大行,盖上10厘米厚的干麦草,最后再盖上地膜。麦草有良好的蓄温保温性能,既能提高大 First, regular plane big line. In the sunny morning opened the film inside the big line, with a three-hook hook planing line, the depth of 15 to 20 cm. After planing hug, re-cover the film. After deep planing, the subsoil soil becomes rough and soft, and the endothermic heat storage capacity is enhanced. Second, Daxing covered. Uncover the plastic film in the big shop, then dig a large row deep in the big row, cover the 10 cm thick dry grass, and finally cover the plastic film. Wheat straw has good thermal insulation properties, both to improve the large