Therefore, it is possible to realize poly-dimension utilization of space-time resources within solar greenhouses by adopting rational crop planting system.
结论：根据日光温室内的温光条件，通过合理的作物种植制度，可以实现对日光温室内时空资源的多维利用。
The results showed: the nutrient cycling was different among the different planting density of C. cajan, but the efficiency of nutrient utilization was same among the different planting densities .
结果表明，不同种植密度下林分的营养循环表现出了一定的差异性，而养分的利用效率则一样。
The effects of planting density and nitrogen application rate on nitrogen absorption and utilization by rice were studied with Wuxiangjing 9(Japonica variety).
以迟熟中粳稻武香粳9号为材料，研究了基本苗和施氮量对水稻氮素吸收与利用的影响。
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