若干引进牧草品种的适应性研究

对美国引进的6个牧草种、21个品种进行了适应性和产量比较试验,结果表明:苇状羊茅Festuca arundinacea和冰草Agropyron cristatum的干草总产量较高,其中,苇状羊茅品种Cajun的总产量最高;紫花苜蓿Medicago sativa的干草总产量居于中等水平,在参试的紫花苜蓿品种中,WL323的干草总产量最高;无芒雀麦的产量最低.苇状羊茅、冰草和紫花苜蓿在北京及其周边地区有很好的适应性和推广价值.

Adaptability to the Beijing area of some introduced forage varieties

Adaptability and comparison experiments were carried out with 21 varieties of 6 forage species introduced from America. Festuca arundinacea and Agropyron cristatum were found to have relatively high total hay yields, within which the Festuca arundinacea variety Kajun had the highest. The total hay yield of alfalfa was at the middle level, within which the variety WL323 had the highest. The lowest yield was shown by Bromus inermis. Festuca arundinacea, Agropyron cristatum and Medicago sativa have good adaptability and extension value in Beijing and surrounding areas.