摘要
为探讨在拉萨河谷区域不同紫花苜蓿品种的生产性能,选择2017年在试验地引种的3个紫花苜蓿品种:“前景”“北极熊”“牧羊大师”,由于紫花苜蓿在第3年的产量最高,第3年的相关指标能够推断并筛选出适应当地的优质品种,因此对第3年的株高、草产量、叶茎比和干鲜比进行了分析评价。结果表明:3个引进紫花苜蓿品种在第3年的生产性能存在差异,“前景”的株高和产量在3次刈割中均表现较好,年产量和株高最高达到12458.7 kg/hm^(2)和61.7 cm,总体而言,3个品种当中“前景”最适合在拉萨河谷区域种植并推广。
In order to investigate the production performance of different alfalfa varieties in Lhasa Valley,this experiment selected three alfalfa varieties planted in the test site in 2017.According to relevant literature,alfalfa had the highest yield in the third year,and the relevant indexes in the third year could be inferred and selected to adapt to the local quality varieties[1].Therefore,the plant height,grass yield,leaf-stem ratio and dry-fresh ratio in the third year(2020)were analyzed and evaluated in this paper.The results show that there are differences in the three alfalfa production performance in the third year.The plant height and yield of’Prospect’are better in the three cutting,with the maximum annual yield 12458.7 kg/hm^(2) and plant height 61.7 cm.In general,among the three varieties,’Prospect’is the most suitable for planting and promotion in Lhasa River Valley.
作者
次珍
土登群配
Cizhen;Tudengqunpei(Institute of Pratacultural,Tibet Academy of Agricultural and Animal Husbandry Science,Tibet Lhasa 850000,China)
出处
《西藏农业科技》
2022年第1期26-28,共3页
Tibet Journal of Agricultural Sciences
基金
国家牧草产业体系拉萨综合试验站资助项目。