Acta Agrestia Sinica

›› 2000, Vol. 8 ›› Issue (4): 312-318.DOI: 10.11733/j.issn.1007-0435.2000.04.011

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Effects on production characters and quality of Russian wildrye Grass under Different Grazing Intensities

Han Jianguo1, Song Jinfeng1, Zhang Yunwei1, Guo Tai2, Liu Zhaoqing2   

  1. 1. Grassland Institute, China Agricultural University, Beijing 100094;
    2. Animal Husbandry Bureau of HeBei, Shijiazhuang 050011
  • Online:2000-11-15 Published:2000-11-15

放牧强度对新麦草生产特性和品质的影响

韩建国1, 宋锦峰1, 张蕴薇1, 郭泰2, 刘肇清2   

  1. 1. 中国农业大学草地研究所, 北京 100094;
    2. 河北省畜牧局, 石家庄 050011
  • 基金资助:
    国家“九五”科技攻关96-016-01-04专题研究内容

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Abstract: The study of production characters and quality under light grazing (LG),medium grazing (MG),heavy grazing (HG)and no grazing(CK)was carried out on a russian wildrye grass(Psathyrostachys juncea (Fishch)Nevski)pasture during growing season(mid-June to mid-September)in 1997.The results showed that plant height declined with increasing of the grazing intensity,while the tiller quantities increased;the more of the tiller number,the less of the tiller weight in russian wildrye grass under grazing.The order of leaf arears was CK>MG>LG>HG.The forage yield and the content of CP were increased,and the quality was improved,and the content of ADF,NDF were decrease under MG.

Key words: Grazing intensity, Russian wildrye, Production characters, Quality

摘要： 在华北农牧交错带,进行新麦草人工草地划区轮牧试验。结果表明,中牧区新麦草的分蘖数增多、叶面积增加迅速、再生速度加快,粗蛋白质含量提高、中性洗涤纤维和酸性洗涤纤维含量下降。中牧区有利于提高新麦草的产草量和品质改善。

关键词: 放牧强度, 新麦草, 生产特性, 品质