草地学报

›› 2000, Vol. 8 ›› Issue (1): 41-45.DOI: 10.11733/j.issn.1007-0435.2000.01.008

• 研究论文 • 上一篇    下一篇

施氮后氨的挥发损失及其对草坪草生长的影响

边秀举1, 李晓林2, 张福锁2   

  1. 1. 河北农业大学, 保定 071001;
    2. 中国农业大学, 北京 100094
  • 出版日期:2000-02-15 发布日期:2000-02-15

Studies on the Ammonia Volatilization from Perennial Ryegrass Turf after Fertilization

Bian Xiuju1, Li Xiaolin2, Zhang Fusuo2   

  1. 1. Hebei Agricultural University, Baoding 071001;
    2. China Agricultural University, Beijing 100094
  • Online:2000-02-15 Published:2000-02-15

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摘要： 在多年生黑麦草草坪施用速效与缓效氮肥后,对氨的挥发损失进行田间定位测定。结果表明,占施入量0.77%～20.7%的氮以 NH3的形式挥发。氮肥种类不同,挥发动态各异,损失量之间差异显著。在供试的5种氮肥中,氮素损失率的顺序为:普通尿素 >塑膜包衣尿素 >国产草坪专用肥 >IBDU草坪肥 >日本包膜缓释肥。缓效性能越好,氨的挥发损失越少,缓释氮肥不但显著降低氨的挥发,而且能持久高效地保持草坪质量。

关键词: 黑麦草, 草坪, 氨挥发, 施肥

Abstract: Ammonia volatilization was estimated in the field from perennial ryegrass turf after application of five kinds of N fertilizer.Ammonia losses are ranged from 0 77% to 20 78% of the applied N when fertilizers were broadcasted to the turf.The dynamics of loss NH3 by volatilization and cumulative losses were measured in this research showing significant difference: urea>polymer coated urea>specialized turf fertilizer>IBDU>Japan polymer coated fertilizer.The results of this research indicated that slow release N fertilizer could considerably reduce the N volatilized losses from turf and the nitrogen was slower released from fertilizer,and is the less NH3 volatilized.

Key words: Perennial ryegrass, Turfgrass, NH3 volatilization, Fertilization