南疆地区核桃林间不同秋眠级苜蓿生产性能和营养品质的研究  

Study on production performance and nutritional quality of alfalfa at different autumn dormancy levels among walnut forests in Southern Xinjiang region

作　　者：苏洋[1] 梁晨 张树振[1] 岳海燕 彭凤君 张博[1] 蒋立峰 孙鸿博 SU Yang;LIANG Chen;ZHANG Shuzhen;YUE Haiyan;PENG Fengjun;ZHANG Bo;JIANG Lifeng;SUN Hongbo

机构地区：[1]新疆农业大学草业学院西部干旱荒漠区草地资源与生态教育部重点实验室新疆草地资源与生态重点实验室,新疆乌鲁木齐830000 [2]绿技行(上海)农业科技有限公司,上海200000

出　　处：《饲料研究》2025年第4期103-108,共6页Feed Research

基　　金：新疆维吾尔自治区重点研发任务专项计划(项目编号:2022B02003);天山英才培养计划“三农”骨干人才培养项目(项目编号:2022SNGGNT070);国家牧草产业技术体系(项目编号:CARS34)。

摘　　要：试验旨在探究核桃林间作不同秋眠级数和播种密度对紫花苜蓿生产性能和营养品质的影响。试验在和田地区核桃林间采用双因素随机区组设计,播种密度设置3个水平,分别为15.0、22.5、30.0 kg/hm^(2),分别用M1、M2、M3表示,秋眠级设置4个水平,分别为7级赛沃、8级精英、9级超能、10级WL712,分别用Q7、Q8、Q9、Q10表示,测定紫花苜蓿的生产性能、营养品质和返青率。结果表明,在第1、2茬次,Q9·M1播种方案的株高均最高,分别为79.68、72.72 cm,在第3茬中,Q10·M3播种方案的株高最高,为72.18 cm。Q9·M3播种方案下的鲜草、干草年总产量均最高,分别为22401.13、6667.01 kg/hm^(2)。在3个茬次中,第2茬的Q9·M2播种方案粗蛋白含量最高,第2茬Q10·M2播种方案的相对饲喂价值最高。研究表明,选择秋眠级数9级的Q9紫花苜蓿品种,采用22.5 kg/hm^(2)的播种密度能够获得高产优质的饲草。The aim of this experiment was to investigate the effects of different autumn dormancy levels and sowing density on the production performance and nutritional quality of alfalfa.A two-factor random block design was adopted among walnut forests in Hotan area.Three sowing density levels were set,which were 15.0,22.5 and 30.0 kg/hm^(2),represented by M1,M2 and M3,respectively.Four autumn dormancy levels were set,which were 7th Saiwo,8th Elite,9th Superpower and 10th WL712.The performance,nutritional quality and greening rate of alfalfa were measured by Q7,Q8,Q9 and Q10 respectively.The results showed that the plant height of Q9·M1 sowing scheme was the highest in the first and second crops,which were 79.68 and 72.72 cm,respectively.In the third crop,the plant height of Q10·M3 sowing scheme was the highest,which was 72.18 cm.Under Q9·M3 seeding scheme,the total annual output of fresh and hay were the highest,which were 22401.13 and 6667.01 kg/hm^(2),respectively.The crude protein content of Q9·M2 in the second crop was the highest,and the relative feeding value of Q10·M2 in the 2nd crop was the highest.The study indicates that high yield and high quality forage grass can be obtained by selecting the Q9 alfalfa variety with the sowing density of 22.5 kg/hm^(2).

关 键 词：核桃林间作 秋眠级数 紫花苜蓿 生产性能 营养品质 

分 类 号：S816[农业科学—饲料科学]