摘要
为了提高西藏高寒牧区饲草产量,缓解草畜矛盾。在西藏拉萨研究了‘白燕2号’与箭筈豌豆不同混播比例草地,在适宜刈割时期牧草养分比较研究。结果表明:各混播比例间的产草量、粗蛋白、粗脂肪、粗纤维、粗灰分、Ca和P含量差异显著,混播可显著提高产草量和牧草品质;且随着箭筈豌豆比例的增加,粗蛋白含量随之增加,最高为单播箭筈豌豆达到22.58%。各混播比例以H4为佳,鲜草产量达到7.71kg/m2、粗蛋白含量达到13.66%、粗脂肪含量达到1.99%、粗纤维含量达到35.99%、粗灰分含量达到6.77%、Ca:P为5.36。在西藏气候适宜的地区可将‘白燕2号’与箭筈豌豆按此比例(箭筈豌豆40%+‘白燕2号’60%)混播推广以改善饲草品质。
In order to improve the pastoral areas of the Tibetan alpine forage yield,ease the contradiction between the pasture and livestock.The study was to assess the different mixed proportion of seeding grass between ' White oats No.2 ' and Vetch in Lhasa of Tibet,was to carry out the comparative study of forages in appropriate cutting time.The results of the proportion of mixed seeding showed significant difference among plant yield,protein,fat,crude fiber,crude ash,Ca and P content and it significantly improved the plant yield and forage quality;also with the increase of the proportion of the Vetch,protein content increased too.The highest content of Unicast vetch reaches 22.58%.The optimal mixed seeding proportion was H 4,Fresh yield reaches 7.71 kg/m 2,protein content reached 13.66%,fat content reached 1.99%,crude fiber content reached 35.99%,crude ash content reached 6.77%,Ca:P 5.36.Thus,' White oats No.2 ' and Vetch could be promoted according to the above proportion(Vetch 40%+ White oats No.2 60%) in the favorable climate region in Tibet,in order to improve the quality of forage grass.
出处
《中国农学通报》
CSCD
2012年第29期15-19,共5页
Chinese Agricultural Science Bulletin
基金
教育部人文社会科学研究项目基金"西藏农牧民生活习惯和宗教信仰对家畜出栏率的影响"(09YJC840032)
国家自然科学基金项目"西藏高原退化草地自然恢复潜力研究"(30860061)
科技部农业科技成果转化资金项目"藏北高寒退化草地生态修复综合技术示范及推广"(2010GB2F400453)
国家社科基金项目"西藏退牧还草政策实施成效研究"(XZ1121)
国家自然基金"西藏大麦种质资源补充考察采集及鉴定评价"(30860146)
关键词
西藏拉萨
'白燕2号’
箭筈豌豆
混播
比较研究
Lhasa of Tibet
' White oats No.2 '
Vicia sativa L.
mixed seeding
comparative study