播种量对紫花苜蓿生物学特性及产草量的影响  

Effect of Sowing Rate on Biological Characteristics and Yield of Medicago Sativa

作　　者：张荟荟[1] 张学洲[1] 兰吉勇[1] 张一弓[1] 王玉[1] 李学森[1] 

机构地区：[1]新疆畜牧科学院草业研究所,新疆乌鲁木齐830000

出　　处：《草食家畜》2016年第3期49-52,共4页Grass-Feeding Livestock

基　　金：新疆维吾尔自治区国际科技合作计划项目(20136001)

摘　　要：用随机区组设计研究不同播种量对紫花苜蓿生物学特性及产草量的影响。结果表明,在半干旱荒漠区的呼图壁基地种植紫花苜蓿的适宜播种量为15 kg/hm2,其草产量和单位面积蛋白质产量最高,分别为22 153.75 kg/hm2和3 092.66 kg/hm2;随着播种密度的增加,紫花苜蓿分枝数减少,植株高度增加,抗倒能力降低,进而会导致苜蓿减产,品质下降。The paper studies the effect of different sowing rate on biological characteristics and yield of Alfalfa at random. It is showed that the appropriate sowing rate in the semi-arid desert region of Hutubi base is 15 kg /hm2. The grass yield and protein yield per unit area are 22 153.75 and 3 092.66 kg/hm2 respectively. However, with the increasing sowing densityand reducing branch, increasing plant height, and the capacity of lodging resistance is reduced, thus it will lead to reduction of yield and quality.

关 键 词：紫花苜蓿 播种量 产草量 蛋白质产量 

分 类 号：S812[农业科学—草业科学]