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1957—1961五年的试验结果,证明大豆初花期追施氮肥有显著的增产效果。作者根据生物学测定,得出增产的相关数据,并从植物生理生化等方面,较详尽的分析了增产的原因,认为初花期追施氮肥是争取大豆丰产的一项经济而有效的措施。
1957-1961 five years of test results show that soybean topdressing nitrogen fertilizer have a significant increase in yield. Based on the biological measurements, the authors obtained the data related to the increase in yield and analyzed in detail the reasons for the increase in yield from the aspects of plant physiology and biochemistry. It is considered that the top-dressing nitrogen fertilizer is an economical and effective measure for high yield of soybean.