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在晋东豫西寿阳旱农试区连续5 年进行了多种方式秸秆还田与秋季深施肥配合定位试验,主要探讨秸秆还田秋施肥对旱地玉米产量、土壤肥力及水分利用效率的影响。结果证明,秸秆还田秋施肥较好的解决了深施肥与春季保墒促全苗以及秸秆腐解与幼苗争水争肥影响幼苗生长的矛盾,秸秆资源丰富的优势得到充分利用,土壤水肥状况得到明显改善。具体表现为玉米苗全苗壮,根系发达,植株叶片光合、蒸腾速率提高,玉米产量大幅度增长。同时维持了较高的土壤肥力。
The results showed that straw returning to autumn had significant effects on the yield, soil fertility and water use efficiency of maize in dry land. . The results showed that the straw returning to autumn fertilization better solves the deep fertilization and spring soil moisture to promote the whole seedlings and straw decomposition and seedling fight water dispute affect seedling growth contradiction, the advantages of straw resources are fully utilized, soil water and fertilizer conditions are Significant improvement. Specific performance of the whole seedlings of maize seedlings strong, well-developed roots, plant photosynthesis, transpiration rate increased significantly increased corn production. While maintaining a high soil fertility.