新疆农业科学2017，Vol.54Issue(4)：748-755,8.DOI:10.6048/j.issn.1001-4330.2017.04.021
新疆沙尔套山3个重要草地型草群营养物质动态分析及评价
Dynamic Changes and Evaluation of Nutrients of Natural Grassland Vegetation of Three Important Grassland Types in Xinjiang Shaertao Mountain
摘要
Abstract
[Objective] This study aims to explore the monthly dynamic changes and nutritional value of the three important grassland types in Xinjiang Shaertao Mountain and comprehensively rank the nutritive content of the three important grassland types (Stipa capillata + Achnatherum splendens, Iris ruthenica + Gramineae, Dactylis glomerata + herabarum varianum).[Method]The international standard method was used to measure the content of nutrients in the grass groups.The data were processed by SPSS 17, Duncan and membership function analysis.[Result]The result showed that the content of crude protein, calcium, phosphorus and total gross energy gradually reduced with the increase of month, while the content of acid detergent fiber and neutral detergent fiber tended to be increased.The order of comprehensive nutritive value during growth was May>June>July>August>September>October>November.The comprehensive nutritive value evaluation of different grassland types of vegetation was the third type(Dactylis glomerata+herabarum varianum), the second type(Iris ruthenica+Gramineae), the first type(Stipa capillata + Achnatherum splendens), respectively, in May and June.And from July to November, it was the second type, the third type, the first type, respectively.[Conclusion]According to the seasonal characters, the 3 important grass groups in the natural grassland in Xinjiang Shaertao Mountain in June and July have better utilization value.关键词
草地类型/营养物质/动态分析/综合评价Key words
grassland types/nutrients/dynamic analysis/comprehensive evaluation分类
农业科技引用本文复制引用
尉小霞,张凡凡,杨开虎,于磊,张文举,鲁为华..新疆沙尔套山3个重要草地型草群营养物质动态分析及评价[J].新疆农业科学,2017,54(4):748-755,8.基金项目
国家农业部公益性行业(农业)科研专项经费项目"放牧牛羊营养均衡需要研究与示范"(201303062)Supported by the special fund for agro-scientific research programs in nonprofit industries (agriculture) "Research and demonstration on balanced nutrition of grazing cattle and sheep" (201303062) （农业）
