16份引种禾本科牧草在荒漠草原的适应性及营养价值评定  

Adaptability and Nutritional Value Evaluation of 16 Introduced Gramineous Forage Grass in Desert Grassland

作　　者：王晓娟[1,2] 杨鼎[1,2] 王慧敏[1,2] 张园园[1,2] 百岁 王晓光[1,2] 孙海莲[2] 

机构地区：[1]中国科学院内蒙古草业中心,内蒙古呼和浩特010031 [2]内蒙古农牧业科学院,内蒙古呼和浩特010031 [3]赤峰市克什克腾旗草原站,内蒙古赤峰025350

出　　处：《草原与草业》2015年第1期46-51,共6页Grassland and Prataculture

基　　金：国家牧草产业技术体系(GARS-35);国家自然科学基金:荒漠草原肉羊日粮营养供需平衡研究(31201850)

摘　　要：试验对16种从国外引进的禾本科牧草在荒漠草原的适应性及营养价值评定进行了研究,结果表明:美国赖草、美国灰赖草、沙生冰草及西伯利亚冰草越冬率较高,均在90%以上;披碱草和赖草属牧草生长速度较快,尤其是灰赖草;美国赖草、灰赖草鲜重均达到6000kg/hm2以上,加拿大新麦草、保加利亚新麦草鲜草产量均在4000kg/hm2以上;护坡型冰草、西伯利亚冰草、沙生冰草营养价值较高、适应性强、抗逆性好,是优质牧草,可以作为荒漠草原地区推广种植的首选牧草;美国赖草、灰赖草虽然产量高,抗逆性强,能够适应荒漠草原地区低温和干旱等极端条件,但适口性较差,可作为生态用种加以利用。In this study, the adaptability and nutritional value of 16 kinds of imported gramineous forage grass in desert grassland were tested. The resUlts showed that： American Leymus, American grey Leymus, Agropyron desertorum and Siberia Wheatgrass had a higher overwintering rate, all above 90M ; Elymus dahuricus and Leymus genus grew faster, especially grey Leymus; the fresh weight of American Leymus and American grey Leymus reached over 6000kg/hm^2 , while Canadian new wheat straw and Bulgarian new wheat straw were above 4000 kg/hm^2 Slope protection type ice grass, Siberia wheatgrass and Agropyron desertorum contained a higher nutritional value, stronger adaptability and good resistance, being an excellent forage grass which can be promoted as the first choice of extending planting in the desert steppe area; American Leymus and grey Leymus had a high yield, strong resistance, and good adaption to low temperature and drought and other extreme conditions of the desert steppe area, but had a poor palatability, which can be used ecologically.

关 键 词：禾本科牧草 适应性 营养价值 

分 类 号：S54[农业科学—作物学]