Study on Over-compensation Growth of Cleistogenes squarrosa Population in Inner Mongolia Steppe Ecological Adaptability and Cultivating Techniques of two Festuca Varieties The impacts of fertilization and clipping on compensatory growth of Poa crymophila Effects of Shade and Light Recovery on Soybean Cultivars (Lines) and Its Relationship with Yield in Relay Strip Intercropping System Effect of different densities of Mongolian gerbils to spring wheat growth under simulation conditions Effect of Soil Drying-Wetting Alternation on Dry Biomass Accumulation and Reallocation at Maize Flowering Stage