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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (17): 210-213.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

氮肥利用率概念与15N示踪测定方法的综述

田昌玉 左余宝 林治安 赵秉强 孙文彦 唐继伟   

  • 收稿日期:2010-03-12 修回日期:2010-05-09 出版日期:2010-09-05 发布日期:2010-09-05
  • 基金资助:

    “十一五”国家科技支撑计划资助

Review the concept of Fertilizer Nitrogen Recovery Rate and Determination by 15N Tracer

  • Received:2010-03-12 Revised:2010-05-09 Online:2010-09-05 Published:2010-09-05

PDF (PC)

1485

摘要：

多数文献报道我国氮肥利用率低，旨在总结我国氮肥利用率低的原因。从氮肥利用率的概念和测定方法入手，对15N示踪法测定氮肥利用率的方法及概念做详尽综述。讨论了氮肥利用率作为一个重要的施肥参数，测定中必需的稳定环境条件和土壤氮素库容稳定的必要条件，还阐述了土壤氮肥利用率概念的含义。

关键词: 低温, 低温, 贵妃枇杷, 果实品质

Abstract:

Most of the reported descripted thant China,s fertilizer nitrogen recovery rate was low.For this purpoes,sum up the concept and measurement methods with 15N tracer of fertilizer nitrogen recovery rate .Discussed it was necessary for the stability environmental conditions and soil nitrogen storage capacity,but also elaborated on the meaning of the concept of soil nitrogen availability.