宁夏灌区１９９６年种植的０．４万ｈｍ２覆膜穴播小麦增产效果差异显著。分析认为：在栽培中还存在着诸如个体与群体的协调、后期早衰、麦套玉米的促控矛盾、施肥未尽合理等问题，使覆膜穴播小麦的增产潜力还远远没有挖掘出来。因此，应改进施肥方法，采用合理的群体结构，从播种机械与肥水促控上、不同的栽培途径上解决小麦后期早衰等问题，以达到高产高效的目的 The planting yield of 0.4 million hm2 mulched-hole wheat grown in Ningxia Irrigation Area in 1996 was significantly different. Analysis shows that there are still problems such as the coordination of individuals and groups, premature senescence, wheat-maize contradictions and the unreasonable application of fertilizers, so that the yield-increasing potential of film-mulched wheat is far from being excavated. Therefore, we should improve fertilization methods, using a reasonable group structure, from the sowing machinery and fertilizer to promote the control of different ways of cultivation to solve the problem of premature failure of wheat in order to achieve the purpose of high yield and high efficiency