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探讨了黄淮海农区冬小麦||早春玉米/夏玉米、早春玉米/夏玉米及冬小麦-夏玉米3种集约种植制度的超高产生产特性。结果表明,冬小麦||早春玉米/夏玉米产量达20.52~21.79t/ha,间套行又可间套蔬菜生产,增产增效,但该模式时空集约性强,机械化操作难度相对较大;早春玉米/夏玉米产量可达18.24~18.39t/ha,同时该方式又可纳入春、秋两季蔬菜间套种植,具有粮菜结合,高产高效的特征;采用20+40模式种植冬小麦-玉米两熟,产量可达18.47~20.89t/ha。3种种植制度单位面积产量比黄淮海农区目前高产吨粮田(1t/666.7m2,15t/ha)增产21.63%~45.28%,初步实现了粮食进一步高产的新突破。
The super high yielding characteristics of winter wheat || early spring maize / summer maize, early spring maize / summer maize and winter wheat - summer maize were intensively studied. The results showed that the yield of early-season maize / summer maize reached 20.52 ~ 21.79t / ha, and the intercropping could intercrop the production of vegetables to increase the yield and increase the efficiency. However, the mode of time and space intensiveness and the difficulty of mechanization operation were relatively The yield of early maize / summer maize can reach 18.24 ~ 18.39t / ha, at the same time, this method can be incorporated into the vegetable intercropping in the spring and autumn seasons, with the characteristics of grain combination, high yield and high efficiency; 20 + 40 planting Winter wheat - two crops of corn, the output can reach 18.47 ~ 20.89t / ha. The yield per unit area of the three planting systems increased 21.63% -45.28% more than the current high-yielding grain crop fields (1t / 666.7m2 and 15t / ha) in the Huang-Huai-Hai rural area, which initially achieved a new breakthrough in further grain yield.