通过8年田间定位试验,采用裂-裂区的试验方法研究了灌溉定额、绿肥、化肥及其交互作用对灌漠土小麦/玉米带田土壤肥力和作物产量的影响。结果表明:随灌溉定额的增加,土壤全钾和全盐含量极显著降低,速效氮、速效磷和速效钾含量显著降低,pH值极显著上升。种植绿肥能极显著提高土壤的有机质、全氮、全钾和速效氮含量,能极显著降低土壤的pH值。施用化肥可以极显著提高土壤的有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾和全盐含量,能极显著降低土壤的pH值。对于小麦/玉米带田来说,6000 m3hm~(-2)的灌溉定额足以保证带田作物的产量水平,但要十分注意灌溉定额和灌溉时间的合理搭配,灌溉定额和灌溉时间要合理分配在影响小麦玉米产量的关键生育期。4500 m3hm~(-2)的灌溉定额下,种植绿肥能显著提高小麦产量。施用化肥能极显著提高小麦产量、玉米产量以及小麦玉米的总产量。灌溉定额与化肥之间的交互作用对玉米产量和总产量表现出极显著的影响,6000 m3hm~(-2)的灌溉定额下施用化肥能极显著提高带田玉米产量和总产量,此条件下带田玉米产量和总产量均达到最高。 The effects of irrigation quota, green manure, chemical fertilizers and their interaction on soil fertility and crop yield of irrigated desert wheat / corn fields were studied by field experiment in 8 years. The results showed that with the increase of irrigation quota, the contents of total potassium and total salt in soil decreased significantly, the content of available nitrogen, available phosphorus and available potassium decreased significantly, and the pH value increased significantly. Planting green manure can significantly improve the soil organic matter, total nitrogen, total potassium and available nitrogen content, can significantly reduce soil pH value. Application of chemical fertilizers can significantly increase the soil organic matter, total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus, available potassium and total salt content, can significantly reduce soil pH. For wheat / corn belt, the irrigation quota of 6000m3hm ~ (-2) is enough to ensure the yield of the field crop. However, pay close attention to the reasonable combination of irrigation quota and irrigation time. The irrigation quota and irrigation time should be rationally allocated Key growth stages affecting wheat yield. Under the irrigation quota of 4500 m3hm ~ (-2), planting green manure could significantly increase the wheat yield. Fertilizers can significantly increase wheat yield, corn yield and wheat and corn production. The interaction between irrigation quota and chemical fertilizers exerted a very significant influence on corn yield and total yield. Under the irrigation quota of 6000 m3hm -2, the application of fertilizers could significantly increase the corn yield and yield under field conditions Field corn yield and output reached the highest.