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在量子的基础上估计太阳辐射的吸收和利用,以评价作物表面生产能力的上限。估计由400—700毫微米范围所收到的量子数,计算得到总辐射量的每卡是8.64微爱因斯坦。用这个量子数目,浄生产力以碳水化合物计算,应等于每卡14微克(以每日辐射量为每平方厘米500卡产生每平方米71克),利用率相当于总能量的5.3％和可见辐射光能的12％转化为化学能。比较这一潜在能力和现行作物的栽培方法的效能指出,在光能利用方面比理论上的可能效率低得多。作物表面的光合效率随着光强度增加而减少,但大部分作物有能力利用比平常更多的光线。对全生产季产量的主要限制因子显然是叶面积及其排列方式和CO_2的供应。
Estimate the absorption and utilization of solar radiation on a quantum basis to evaluate the upper limit of crop surface productivity. Estimated quantum numbers received in the 400-700 nanometer range, the total radiation dose calculated for each card is 8.64 micro-Einstein. Using this quantum number, net productivity, calculated as carbohydrate, should be equal to 14 micrograms per card (yielding 71 grams per square meter at 500 calories per day for 500 calories per square centimeter), utilization equating to 5.3% of total energy and visible radiation 12% of light energy is converted to chemical energy. Comparison of the potency of this potential ability with that of current crop cultivation indicates that the efficiency of light energy utilization is far less than theoretically possible. The photosynthetic efficiency of crop surfaces decreases with increasing light intensity, but most crops have the ability to utilize more light than usual. The main limiting factor for the entire production season is clearly the leaf area and its arrangement and the supply of CO 2.