The eco-biological characteristics of Wheatgrasses was studied on the experimental demonstrative base for industrialized production technique of wheatgrass in West Sunite Banner, Xilingol county, Inner Mongolia in 2002. The objective lied in comparing three species of wheatgrasses' adaptability and yield performance under semi-irrigation condition on desert steppe. The results showed that: three species of wheatgrasses are all resistant to drought, wind-drift sand and endure to sterile soil, and...