水稻田中氮肥损失研究进展

Research advance of nitrogen fertilizer losses from paddy field

综述了水稻田中氮肥损失及减少氮肥损失的措施。主要涉及稻田中氮肥的损失途径、损失程度、测试方法及减少氮肥损失的主要措施。这些措施有实施生态农业政策、优化氮肥管理,包括确定适宜的施氮量,氮肥深施,根据水稻生育期需肥特点合理运筹,平衡施肥,控施(缓施)肥料的应用等。

This article reviews the nitrogen fertilizer losses and the methods for measuring its reduction. It includes those topics, such as the extent, pathways and measuring methods of fertilizer N losses from paddy field, the effects of fertilizer N losses on environment and humanbeing, the measurements of reducing N loss. Application of the policies of ecological agriculture and optimization of the management of the nitrogen fertilizer are thoroughly discussed.