The study is on the effect of different fertilizations on the soil physical, chemical and biological property, crop’s yield and LAI in Corn-Gaodan-Alfalfa’s farming-pastoral zone. It confirms the significance to soil fertilization of this plant model by discussing the change law of soil property and crop yield in different farming-pastoral madels, which also gives a theoretical basis for the improvement of crop yield and implement of“ecological agriculture”. The results showed that:
1. In 2006...