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小麦高光效品种倾向于有效地利用光温水 ,而不是更多地利用光温水 ;夏玉米高光效品种既能更多地利用光温水 ,又能更有效地利用光温水。两熟高光效品种合理组合、适度增密、均匀化种植不仅有利于多截获光能 ,还可抑制土壤水分蒸发 ,从而减少水分无效消耗 ,籽粒产量和光温水利用效率同步增加。在小麦玉米两熟产量递增过程中 ,光温水利用效率逐步提高 ,但生物光能利用率与籽粒光能利用率的增长不同步 ,产量水平越高 ,籽粒光能利用率比生物光能利用率的增幅越大。这表明越高产、单位籽粒产量投入相对越省、越高效
Wheat high light efficiency varieties tend to make effective use of light and warm water, rather than more use of light and warm water; summer corn high light efficiency varieties both to make more use of light and warm water, but also more efficient use of light and warm water. Reasonable combination of two high-efficiency varieties, moderate densification, uniform planting is not only conducive to interception of light energy, but also inhibit the evaporation of soil moisture, thereby reducing water consumption ineffective, grain yield and light temperature and water use efficiency increased simultaneously. During the process of double crop yield increase of wheat and maize, the utilization efficiency of light and temperature water increased gradually, but the utilization of bio-light energy was not synchronized with that of grain light utilization. The higher the yield was, the utilization of light energy was higher than that of bio-light utilization The greater the increase. This shows that the higher the yield, the more grain yield per unit of input, the more efficient and more efficient