摘要
采用饱和D 最优设计方法 ,研究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 ,建立不同施肥时期、不同施肥量对牧草产量的函数模型 ,同时确定了干草原类草地最佳施肥量为 3 15～ 5 2 5kg/hm2 ,最佳施肥时期为 6月3 0日至 8月 1日。
The relationship between manuring of grasslands and herbage yield was studied by the most excellent design as D saturation.The function model of herbage output for different manuring period and different manuring,and determined the best manuring amount type was 315～525kg/hm 2,the best manuring period was 06 30～08 15.in the grassland of dry.
出处
《青海畜牧兽医杂志》
2000年第4期11-12,共2页
Chinese Qinghai Journal of Animal and Veterinary Sciences
关键词
饱和D-最优设计
产草量
施肥量
施肥时期
草地
The most excellent design as D saturation,Herbage yield,Manuring Amount,Manuring period
