多花黑麦草凋萎青贮及与秸秆混合青贮的营养成分保存研究  

Study on Nutrient Recovery of Italian Ryegrass Silage Wilting and Mixing Straws

作　　者：冯涛 唐海洋 纪树仁 拜彬强 沈益新 FENG Tao;TANG Hai-yang;JI Shu-ren;BAI Bin-qiang;SHEN Yi-xin(College of Prataculture Science,Nanjing Agricultural University,Nanjing 210095,China)

机构地区：[1]南京农业大学草业学院,江苏南京210095

出　　处：《草学》2018年第6期32-37,53,共7页Journal of Grassland and Forage Science

基　　金：江苏省农业三新工程项目SXGC [2015] 323资助

摘　　要：为研究凋萎和与秸秆混合青贮对青刈多花黑麦草(Lolium multiflorum Lam.)营养成分保存效果的影响,本试验利用凋萎青贮的方式确定黑麦草在实验室条件下适宜青贮的水分含量,并在此基础上利用秸秆与新鲜黑麦草混合的方式调节青贮原料至适宜的水分含量,通过比较青贮前后营养成分的变化,估算了青贮饲料中多花黑麦草的营养成分回收率。结果表明:青贮原料水分含量保持在65%左右时,多花黑麦草青贮品质较好;多花黑麦草凋萎和与秸秆混合青贮可以提高青贮发酵品质和营养成分回收率;多花黑麦草与玉米秸秆混合青贮品质较好,建议在生产实践中推广应用。In order to study the effect of ensiling by wilting and mixing straws on nutrient recovery of Italian ryegrass,wilting silage experiments were carried out,which investiged the optimum moisture content of Italian ryegrass for mixed silage production under laboratory condition,based on which the moisture contents of silage materials were regulated to be appropriate,by mixing different straws and Italian ryegrass,for estimating the nutrient recovery of Italian ryegrass through comparing the nutrient changes before and after ensiling. The results indicated that 65% moisture content of Italian ryegrass was beneficial to produce silage; And the fermentation quality of silage and nutrient recovery of Italian ryegrass were enhanced by wilting and ensiling mixtures of different straws and Italian ryegrass; And the mixed silage of maize straw and Italian ryegrass was popularized in practical application because of its good quality.

关 键 词：多花黑麦草 秸秆 混合青贮 发酵品质 粗蛋白回收率 

分 类 号：S544.09[农业科学—作物学]