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众所周知,农作物的产量有90—95％是作物在光合作用中利用日光能同化CO_2所形成的。因此,光合作用在农作物的产量中起着决定性的作用。但是当前农作物产量远较理论值为低,其主要问题在于光能利用率不高[1、2]。所以生产中许多农业技术和措施都是直接或间接地提高光能利用率或光合强度,从而提高作物的单位面积产量。在农业生产中的合理密植正是提高光能利用率的一个重要方面。我国在水稻及小麦方面曾比较
It is well-known that 90-95% of crop yields are formed by photosynthesis of crops using sunlight to assimilate CO 2. Therefore, photosynthesis plays a decisive role in crop yield. However, the current crop yield is much lower than the theoretical value. The main problem is that the utilization rate of light energy is not high [1,2]. Therefore, many agricultural technologies and measures in production are directly or indirectly improve the utilization of light energy or photosynthetic intensity, so as to improve the crop yield per unit area. The close planting in agriculture is an important aspect of improving the utilization of light energy. My country has compared rice and wheat