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在黄淮平原小麦玉米两熟区,通过不同还田条件、播深和镇压3因素裂区试验,研究免耕条件下玉米出苗的土壤环境及出苗质量。结果表明,秸秆还田与不还田显著影响玉米出苗质量,表现为黄化、弱苗率差异显著;秸秆还田下播深对出苗质量有显著影响,镇压对出苗质量影响不显著。3因素交互效应对土壤环境影响程度依次是水分>硬度>温度。
In the two cropping regions of wheat and corn in Huanghuai Plain, the soil environment and the germination quality of maize emergence under no-tillage conditions were studied through 3-factor split test under different field conditions, sowing depth and repression. The results showed that straw returning and returning to the field significantly affected the quality of emergence of maize. The difference was significant between yellowing and weak seedling rate. The straw sowing depth significantly affected the quality of emergence and the suppression had no significant effect on the quality of emergence. The effect of three factors on the soil environment was water> hardness> temperature.