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田间试验结果表明:旱地地膜冬小麦发生早衰现象的主要原因是生育后期覆膜产生的负效应和播期过早、不合理的施肥;采取配方施肥、加大农肥用量、掌握最佳播期和中后期揭膜可有效克服小麦早衰现象的发生。
The results of field experiments showed that the main reason of premature decline of winter wheat in dryland mulching was the negative effect of sowing film and premature sowing and irrational fertilization in the late stage of cropping. The formula fertilization, increasing the amount of fertilizer and grasping the best sowing date and medium sowing date Late uncovering can effectively overcome the occurrence of wheat premature.