前言建立优质高产的人工草地和天然草地,已在牧区,半农半牧区大规模的开展。实践证明,建立优质高产的人工草地和改良草原是发展畜牧业的根本保证。多年来一些国营农牧场、草原试验站,农业高等院校和科研单位都先后开展 Foreword The establishment of high quality artificial grassland and natural grassland has been carried out on a large scale in pastoral areas, semi-agricultural, semi-pastoral areas. Practice has proved that the establishment of high-quality artificial grassland and grassland improvement is the fundamental guarantee for the development of animal husbandry. Over the years a number of state-owned farms, prairie pilot stations, agricultural colleges and research institutes have successively carried out