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稻田土壤中氮素的转化与氮肥的合理施用朱兆良（中国科学院南京土壤研究所，南京２１０００８）氨肥是农业生产中施用最普遍的一种化肥，但是，施用不当，不仅不能充分发挥其增产效用，而且还将污染环境。因此，合理施用氮肥具有重要的意义。本文概述我们在有关稻田方面的...
Transformation of Nitrogen in Paddy Soil and Rational Application of Nitrogen Fertilizer Zhu Zhaoliang (Nanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008) Ammonia fertilizer is one of the most commonly used chemical fertilizers in agricultural production. However, improper application not only fails to give full play to its yield- , But also pollute the environment. Therefore, the rational application of nitrogen fertilizer is of great significance. This article outlines what we have done in paddy field ...