干旱区生态环境知识资源中心(Arid): 根茎型清水苜蓿鲜草产量及营养价值评价

Arid

	根茎型清水苜蓿鲜草产量及营养价值评价
其他题名	Assess on Fresh Forage Yield and Nutritive Value of Rhizomatous Medicago sativa L.cv. Qingshui
	南丽丽 1; 师尚礼 1; 郭全恩 2; 朱新强 3
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2012
卷号	34 期号:5 页码:63-68
中文摘要	以根茎型清水紫花苜蓿为材料,以根蘖型野生黄花苜蓿和甘农2号杂花苜蓿、直根型陇东紫花苜蓿为对照,在甘肃天水、兰州和武威3个生态区比较不同根型苜蓿的产量和品质,为根茎型苜蓿在生产中的应用提供科学依据。结果表明,根茎型苜蓿粗蛋白质含量最高,两年平均为20.36%;粗纤维含量最低,两年平均为39.47%;产草量低,三年平均产量为4.05kg/m~2;株丛高度相对较低,叶量丰富,叶茎比较高,更适合培育优质牧草。生态区域对苜蓿产量和营养成分有着显著影响。各根型苜蓿的株高、叶茎比、产草量在天水均最高,兰州次之,武威最低;各根型苜蓿粗蛋白质含量在兰州地区最高。同一生态区不同年份对苜蓿营养成分亦有影响,除天水地区各材料第一年NFE含量低于第二年外,其余材料第一年头茬草苜蓿的CP、EE、NFE含量均高于第二年头茬草;而CF、CASH、Ca、P含量第二年头茬草高于第一年头茬草。
英文摘要	Four alfalfa materials with three root types(rhizomatous Medicago sativa L.cv.Qingshui,creeping rooted native M.falcata,creeping rooted M.varia Martin.cv.Gannong No.2 and taproot M.sativa L.cv.Longdong) were used to study fresh forage yield and nutritive value in semi-humid regions of Tianshui,semi-arid regions of Lanzhou and arid regions of Wuwei,which provides a scientific basis for its extensive application to production.The results showed that rhizomatous alfalfa had the highest crude protein content,20.36%,the lowest crude fiber content,39.47%,low grass yield,4.05 kg·m~(-2),relatively low plant height,abundant leaf weight and high leaf-stem ratio,which was good in cultivating alfalfa of high quality.Experiments showed that different ecozones had obvious effects on yield and nutrient values of alfalfa.Plant height,leaf-stem ratio and forage yield of four alfalfa materials were the highest in Tianshui region,then Lanzhou region,it was the lowest in Wuwei region.Different years had effects on nutrients composition of alfalfa in the same ecozone,the CP,EE and NFE contents of the 1st cut grass of four alfalfa materials in the 1st year were higher than the 1st cut grass in the 2nd year in Lanzhou and Wuwei region in addition to NFE contents in Tianshui region.But the CF,CASH,Ca and P contents of 1st cut grass in the 2nd year were higher than the 1st cut grass in the 1st year.
中文关键词	根茎型苜蓿 ; 根型 ; 生态区 ; 营养价值
英文关键词	Rhizomatous alfalfa Root type Ecozone Nutritive value
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4656094
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228897
作者单位	1.甘肃农业大学草业学院中美草地畜牧业可持续发展研究中心, 草业生态系统教育部重点实验室;;甘肃省草业工程实验室, 兰州, 甘肃 730070, 中国; 2.甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730070, 中国; 3.中国农业科学院兰州畜牧与兽药研究所, 兰州, 甘肃 730050, 中国
推荐引用方式 GB/T 7714	南丽丽,师尚礼,郭全恩,等. 根茎型清水苜蓿鲜草产量及营养价值评价[J]. 甘肃农业大学,2012,34(5):63-68.
APA	南丽丽,师尚礼,郭全恩,&朱新强.(2012).根茎型清水苜蓿鲜草产量及营养价值评价.中国草地学报,34(5),63-68.
MLA	南丽丽,et al."根茎型清水苜蓿鲜草产量及营养价值评价".中国草地学报 34.5(2012):63-68.