摘要
采用不同施氮量作用于天然草场，研究了草地施肥与牧草产量的关系，通过测定施肥试验的各项参数，确定了干草原类草场产草量和经济效益最佳的施肥方案，最佳施肥量为 ４５０ｋｇ／ｈｍ２，同时建立了施肥量与牧草产量间的回归方程。
The relationship between manuring of grasslands and herbage yield was studied by different manuring amout type of nibrogenous ferbilizer in grasslands. The defined the best menuring program for herbage yield and economic effect in grasslands of dry by different parameter of manuring best manuring amount type was 450 kg/hm2. and defined repression equation of the manuring amount type and herbage yield.
出处
《青海畜牧兽医杂志》
2001年第3期12-13,共2页
Chinese Qinghai Journal of Animal and Veterinary Sciences
关键词
施氮水平
最佳经济效益
天然草场
牧草
产量
herbage yield, The manuring amount type of nibrogenous ferbilizer, The most excellent economic effect
