施氮量与施氮时间对小嵩草草甸草地的影响  

Effect of fertilizing nitrogen rate and time on Kobresia pygmaea meadow grassland

作　　者：马玉寿[1] 郎百宁[1] 李青云[1] 施建军[1] 董全民[1] 

机构地区：[1]青海省畜牧兽医科学院草原研究所,青海西宁810003

出　　处：《草业科学》2003年第3期47-50,共4页Pratacultural Science

基　　金：青海省"九五"攻关项目(96 N 112)

摘　　要：通过不同施肥时间和不同施肥量的试验研究,结果表明,施肥是恢复高寒草甸小嵩草退化草地植被,提高其草地生产力的有效途径之一。在青藏高原小嵩草草甸尿素的最佳施用时间应在6月下旬至7月上旬,较为经济合理的施肥量应在300kg/hm2左右。The different fertilizing rate and time had been studied Authors considered that fertilizing is an effective method to rehabilitate Kobresia pygmaea degenerated vegetation and increase grassland productivity in alpine meadow The proper fertilizing time was between late June and early July, and the most appropriate fertilizing rate was about 300kg/hm 2

关 键 词：施氮量 施氮时间 小嵩草 草甸 草地 

分 类 号：S812.4[农业科学—草业科学]