小麦产量的高低,主要取决于自然环境、人为条件和品种特性三个因素,以及与三因素相关联的光合面积、光合生产率和光合时间三个条件。自然环境难以改变,但是可以通过栽培措施——人为条件和选用品种来适应自然环境,以达到高产。而栽培密度又与光合面积、光 The level of wheat yield mainly depends on the three factors of natural environment, man-made conditions and variety characteristics, as well as the three factors related to photosynthetic area, photosynthetic productivity and photosynthetic time. The natural environment is difficult to change, but it can be adapted to the natural environment through cultivation measures - artificial conditions and selected varieties in order to achieve high yield. The cultivation density and photosynthetic area, light