刈割茬次对多花黑麦草青贮品质的影响  

Effects of Different Stubble on the Quality of Italian Ryegrass Silage

作　　者：罗燕[1] 李君临[1] 郭旭生[2] 陈天峰[1] 张新全[1] 闫艳红[1] LUO Yan LI Jun-lin GUO Xu-sheng CHEN Tian-feng ZHANG Xin-quan YAN Yan-hong(Department of Grassland Science, Sichuan Agriculture University, Ya＇an, Sichuan Province 625014, China State Key Laboratory of Grassland and Agro-Ecosystems, Lanzhou University, Lanzhou, Gansu Province 730000, China)

机构地区：[1]四川农业大学动物科技学院,四川雅安625014 [2]兰州大学草地农业生态系统国家重点实验室,甘肃兰州730000

出　　处：《草地学报》2016年第5期1150-1153,共4页Acta Agrestia Sinica

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

摘　　要：本试验以多花黑麦草(Lolium multiflorum)为原料,研究不同茬次多花黑麦草青贮品质间的差异。刈割茬次设第一、二、三茬3个水平,含水量设75%和65%2个水平,青贮42d后测定其青贮品质。结果表明:65%水分条件下发酵品质均为优,且第二茬青贮饲料的pH值、氨态氮/总氮、丁酸含量最低,粗蛋白含量最高。因此,以含水量为65%的第二茬多花黑麦草作为青贮材料效果较好。The effects of different stubble on the quality of Italian ryegrass （Lolium multiflorurn） silage were assessed in this study. The ryegrass as raw material was mowed at three different cutting times and settled two moisture contents of 75 ~//00 and 65%. The results showed that the silage fermentation quality was better at 65G moisture conditioning, and the silage quality of the second cutting times was the best because of the lowest pH value, NH3-N/TN, butyric acid content and the highest crude protein. It is con- cluded that the effect of the treatment of the second cutting times at 65% moisture conditioning as silage material was better.

关 键 词：多花黑麦草 刈割茬次 青贮品质 

分 类 号：S543.6[农业科学—作物学]