大豆反季节种植，还要取决于大豆的光照特性及其光照生态类型。即大豆在长黑暗和短光照条件下，能提早开花，缩短生育期，反之，开花期延迟，生育期变长。同时，大豆长期在一定的环境条件下生存，对光反应的敏感程度也不同，这就形成了不同的光照生态类型。在我国高纬度地区的 Soybean season planting, but also depends on the light characteristics of soybean and its light ecological type. That is, under the condition of long darkness and short light, soybean can prematurely bloom and shorten the growth period. On the contrary, the flowering period is delayed and the growth period is longer. In the meantime, the long-term survival of soybean under certain environmental conditions, the sensitivity of the light response is also different, which formed a different types of light ecological. In our high latitudes