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在《安徽农业科学》1963年第四期上,孙国倫同志就作物光合势与淨同化率的概念及研究方法作了详细的叙述,有一定的参考价值。但我認为,在作物栽培研究上,除光合势与凈同化率为研究光合性能主要項目外,作物的光能利用率也是一个必要的項目,特别在計算淨同化率方法尚未改进,而仍采用孙国倫同志所叙述的方法来計算,淨同化率的数值有偏小和随叶面积增大而降低
In the fourth issue of Anhui Agricultural Sciences in 1963, Comrade Sun Guolun made a detailed account of the concepts and research methods of crop photosynthetic potential and net assimilation rate, and has certain reference value. However, in my opinion, in light of crop photosynthesis and net assimilation rate, the utilization of light energy of crops is also a necessary project. In particular, the method of calculating net assimilation rate has not been improved yet According to the method described by Comrade Sun Guolun, the net assimilation rate has a small value and decreases with increasing leaf area