Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2014, Vol. 22 ›› Issue (4): 915-918.DOI: 10.11733/j.issn.1007-0435.2014.04.038

Previous Articles    

A Study on Quality of Italian Ryegrass and Rice Straw Mixed Silage

LI Jun-lin1, ZHANG Xin-quan1, YU Zhu2, GUO Xu-sheng3, YAN Yan-hong1, SUN Juan-juan4, LIU Zhong-bo1   

  1. 1. Department of Grassland Science, Sichuan Agriculture University, Ya'an, Sichuan Province 625014, China;
    2. Institute of Grassland Science, China Agricultural University, Beijing 100193, China;
    3. State Key Laboratory of Grassland and Agro-Ecosystems, Lanzhou University, Lanzhou, Gansu Province 730200, China;
    4. Grassland Research Institute of Chinese Academy of Agricultural Sciences, Huhhot, Inner Mongolia 010010, China
  • Received:2014-01-03 Revised:2014-03-22 Online:2014-08-15 Published:2014-08-04

多花黑麦草与水稻秸秆混合青贮品质的研究

李君临1, 张新全1, 玉柱2, 郭旭生3, 闫艳红1, 孙娟娟4, 刘中波1   

  1. 1. 四川农业大学草业科学系, 四川 雅安 625014;
    2. 中国农业大学草地研究所, 北京 100193;
    3. 兰州大学草地农业生态系统国家重点实验室, 甘肃 兰州 730200;
    4. 中国农业科学院草原研究所, 内蒙古 呼和浩特 010010
  • 通讯作者: 闫艳红
  • 作者简介:李君临（1989-），女，湖北随州人，硕士研究生，主要从事饲草生产及利用方面的研究，E-mail：18683556694@163.com
  • 基金资助:

    春晖计划项目（Z2012033）；公益性行业（农业）科研专项（201303061）；现代农业产业技术体系建设专项（CARS-35-05）资助

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Abstract:

Italian ryegrass (Lolium rnultiflorum) and rice straw (Oryza sativa) were mixed and ensiled in different proportions for 42 d to assess the best ratio of the mixed silage, then the nutrition contents and fermentation qualities of all treatments were determined and analyzed. The results showed that Italian ryegrass silage alone was hard to success, however, the value of ammonia nitrogen/total nitrogen and the contents of acetic acid, propionic acid and butyric acid decreased significantly by added the rice straw (P<0.05). The mixed silage of 7:3 (Italian ryegrass:rice straw) had the optimal fermentation quality and was considered as excellent base on the classification standard of V-Score. It was suggested that the 7:3 mixed proportions of Italian ryegrass and rice straw was the best for improving fermentation quality and maximum using straw.

Key words: Italian ryegrass, Rice straw, Mixed silage, Fermentation quality

摘要：

以多花黑麦草（Lolium multiflorum）和水稻（Oryza sativa）秸秆为原料，按不同比例混合青贮，通过发酵品质和营养成分分析，筛选出适宜的混贮比例。结果表明：多花黑麦草单独青贮不易成功，与水稻秸秆以不同比例混合青贮均显著降低氨态氮/总氮的值以及乙酸、丙酸和丁酸的含量（P<0.05），改善了发酵品质；其中7：3混贮处理发酵品质最佳，V-Score评分等级为优。从发酵品质以及秸秆利用最大化的角度出发，建议多花黑麦草与水稻秸秆以7：3混贮作为下一步研究的基础。

关键词: 多花黑麦草, 水稻秸秆, 混合青贮, 发酵品质

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