Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (11): 3602-3609.DOI: 10.11733/j.issn.1007-0435.2024.11.029

Previous Articles    

Effects of Grazing on Forage Yield and Quality of Rye and Bluestem

IANG Yu-hong1,2,3,4, XIE Kai-li1,2,3,4, LOU Shan-ning1,2,3,4, LI Yue5, PHILIP Brown5, HOU Fu-jiang1,2,3,4   

  1. 1. College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730020, China;
    2. State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Lanzhou, Gansu Provicne 730020, China;
    3. Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Lanzhou, Gansu Provicne 730020, China;
    4. Engineering Technology Research Center for Ecological Restoration and Utilization of Degraded Grassland in Northwest China, National Forestry and Grassland Administration, Lanzhou, Gansu Provicne 730020, China;
    5. Department of Plant and Soil Science, Texas Tech University, Lubbock, Texas, 79409, USA
  • Received:2024-03-08 Revised:2024-06-06 Published:2024-11-29

放牧对黑麦和蓝茎冰草牧草产量和品质的影响

姜宇宏1,2,3,4, 谢凯丽1,2,3,4, 娄珊宁1,2,3,4, 李悦5, Philip Brown5, 侯扶江1,2,3,4   

  1. 1. 兰州大学草地农业科技学院, 甘肃 兰州 730020;
    2. 草种创新与草地农业生态系统全国重点实验室, 甘肃 兰州 730020;
    3. 农业农村部草牧业创新重点实验室, 甘肃 兰州 730020;
    4. 国家林业和草原局西北退化草原生态修复与利用工程技术研究中心, 甘肃 兰州 730020;
    5. Department of Plant and Soil Science, Texas Tech University, Lubbock, Texas, 79409, USA
  • 通讯作者: 侯扶江,E-mail:cyhoufj@lzu.edu.cn
  • 作者简介:姜宇宏(1995-),女,汉族,宁夏吴忠市人,硕士研究生,E-mail:jiangyh21@lzu.edu.cn
  • 基金资助:
    美国农业部可持续农业研究和教育项目(the USDA-Sustainable Agriculture Research and Education program,Southern Region,Griffin,GA.USA);美国得克萨斯州拉伯克高原地下水保护区1号项目(the High Plains Underground Water Conservation District No.1,Lubbock,TX);国家留学基金管理委员会"西部地区人才培养特别项目"资助

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Abstract: Grazing is an important management method of cultivated grassland in the world. Therefore,the effects of various grazing management methods on the yield and quality of annual and perennial herbage crops were studied by means of a integrated crop-livestock production system based on the rotation of annual cash crops and annual herbage crops and cultivated perennial grassland. The results showed that:The crude ash content and non-structural carbohydrate content of rye (Secale cereale L.) and the relative feeding value of bluestem (Bothriochloa bladhii (Retz) S.T. Blake) were significantly increased by grazing (P<0.05). The contents of neutral detergent fiber and acid detergent fiber in rye and bluestem grass were decreased. Rest-grazing significantly increased the yield of rye(P<0.05),but had no significant effect on the forage quality of rye. The results provide theoretical basis for determining the appropriate ratio of annual and perennial forage crops and grazing management in crop-livestock integrated production system.

Key words: Forage crop, Perennial forage crops, Optimal grazing, Grass and cropping rotation, Integrated crop-livestock production system

摘要： 放牧是世界栽培草地重要的管理方式。为此，依托一年生经济作物与一年生牧草作物轮作和多年生栽培草地为基础的作物-肉牛综合生产系统，研究多种放牧管理方式对一年生和多年生牧草作物产量和品质的影响。结果表明：放牧显著提高黑麦(Secale cereale L.)的粗灰分含量、非结构性碳水化合物含量和蓝茎冰草(Bothriochloa bladhii (Retz) S.T. Blake)的相对饲喂价值(P<0.05)，降低黑麦和蓝茎冰草中性洗涤纤维、酸性洗涤纤维含量；休牧显著提高黑麦产草量(P<0.05)，对黑麦的牧草品质影响不显著。本研究可为作物-家畜综合生产系统确定适宜的一年生牧草作物和多年生牧草作物比例及其放牧管理提供理论依据。

关键词: 牧草作物, 多年生牧草, 最优放牧, 草田轮作, 作物-家畜综合生产系统

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