Advances of Genetic Transformation of Turf Grass Impacts of environmental factors on the production of non-soil turf in green house Effects of the Orchard-planted Grasses on the 1-year-old Apple Photosynthesis Characteristics A study on re-vegetation in mining wasteland of Dexing Copper Mine,China The Effects of Different Grass Species on Soil Nitrogen Mineralization in Apple Orchard The Effects of Different Grass Species on Soil Nitrogen Mineralization in Apple Orchard