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不同密度群体具有不同的株间竞争强度和光能利用率，低密度处理株 间竞争较小，因 而个体较大，单株生产力较高，但其群体光能利用率较低，群体生物量和产量也相对较低，密度过高也不利于提高产量。
Different density groups had different competition intensity and light energy utilization rate among strains, and low density treatment strains had less competition. Therefore, individuals with larger density and higher productivity per plant had lower light energy utilization rate, but population biomass and yield Is also relatively low, too high density is not conducive to increasing production.