摘要
本文通过采用三因素五水平最优回归设计，对草原进行不同施肥数量及不同肥料品种的施肥试验，研究施肥对不同时间内的草原土壤养分动态变化影响，为草原综合治理中科学合理施肥提供依据．
The experiment was conducted as an optimum regression design that study effects of fertilizer application on the dynamic of nutrition of grassland soil in Baicheng region of Jinn province. The results showed that different rate and kind of fertilizer affected the dynamic of the nutrition of grassland soil.
出处
《松辽学刊（自然科学版）》
2001年第1期40-43,共4页
Songliao Journal (Natural Science Edition)
