施氮后氨的挥发损失及其对草坪草生长的影响

被引:21
作者
边秀举
李晓林
张福锁
机构
[1] 河北农业大学!保定
[2] 中国农业大学!北京
关键词
黑麦草; 草坪; 氨挥发; 施肥;
D O I
暂无
中图分类号
S688.4 [草坪与地被植物];
学科分类号
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%~ 2 0 .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
引用
收藏
页码:41 / 45
页数:5
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