试验以棉花品种沧198为材料,以常规植棉为对照,在旱碱地条件下研究了微沟覆膜植棉(开15 cm深的浅沟,地膜覆盖,膜上打孔种植)对棉花根际土壤水分、电导率,对出苗、成苗、棉苗素质及某些生理特征的影响。结果表明,与常规植棉相比,微沟覆膜棉花苗期根际土壤含水量显著提高,土壤电导率显著降低;微沟覆膜的出苗率提高了12%,现蕾期棉株株高、茎粗、干物质质量分别提高了10.5%、6.9%、8.9%,主茎功能叶SOD、POD活性、脯氨酸含量分别降低了13.7%、18.0%、11.7%;微沟覆膜棉花的单铃重与产量分别提高了7.3%、8.1%;微沟覆膜通过集雨压盐,改善了棉花根际环境,增强了棉苗素质,从而提高产量。 The experiment was carried out on the cotton variety Cang 198 as the material and the conventional cotton as the control. The effects of micro-furrow cotton planting (15 cm deep shallow furrow, mulching and perforating on the membrane) Effects of Rhizosphere Soil Moisture and Electrical Conductivity on Emergence, Seedling Formation, Cotton Seedling Quality and Some Physiological Characteristics. The results showed that compared with the conventional cotton planting, the water content of rhizosphere soil increased significantly and the soil electrical conductivity decreased significantly; the germination rate of micro-furrow film increased by 12% and the cotton plant height at budding stage , Stem diameter and dry matter weight increased by 10.5%, 6.9% and 8.9%, respectively. The activities of SOD and POD and the contents of proline in main functional leaves decreased by 13.7%, 18.0% and 11.7%, respectively. Single boll weight and yield increased by 7.3% and 8.1%, respectively. Micro-ditch covered the rainwater and pressed salt to improve cotton rhizosphere environment and enhanced the quality of cotton seedling so as to increase the yield.