推荐氮肥适宜施用量的方法论刍议

On the methodology of recommendation for the application rate of chemical fertilizer nitrogen to crops

本文对推荐氮肥施用量的两种技术路线进行了讨论。根据80年代和2003～2004年在太湖地区进行的氮肥施用量试验网的水稻和小麦田间试验结果，对区域平均适宜施氮量法的产量效益、经济效益和环境效益进行了初步评价，提出了“以区域平均适宜施氮量作为宏观控制的基础，结合田块具体情况进行微调”的推荐路线。

In the （N） is discussed present paper the methodology of recommendation for the application rate of chemical fertilizer nitrogen Adaptation of the regional mean optimal application rate of chemical fertilizer N （RMOR） for the recommendation for rice and wheat crops is evaluated from the view point of yield efficiency, net income and environmental impacts based on the network of field experiments conducted in Tai Lake region in 1982--1985 and 2003--2004 years, respectively. It is suggested that the RMOR in combination with tuning according to the specific field conditions can be used for the recommendation.