红豆草和紫花苜蓿在高寒牧区适应性研究  

Study on adaptability of Onobrychis viciaefolia cv. Gansu and Medicago sativa cv.Algonguin in alpine pastoral area

作　　者：刘秀梅[1] 张榕[1,2] 豆卫 高占琪 阿不满 孟祥君 

机构地区：[1]甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]甘肃省草原技术推广总站,甘肃兰州730010

出　　处：《草原与草坪》2010年第4期51-54,共4页Grassland and Turf

基　　金：国家科技支撑计划项目:"奶牛优质饲草生产技术研究及开发"子专题"西北饲草和饲料作物优良品种筛选及配套技术研究"(2006BAD04A04);退牧还草工程科技支撑项目(甘退牧2003-05)资助

摘　　要：通过在甘肃甘南州夏河县海拔3 050 m的桑科乡开展甘肃红豆草（Onobrychis viciaefolia cv. Gansu）和阿尔冈金紫花苜蓿（Medicago sativa cv. Algonguin）适应性和生产性能试验。结果表明：两种牧草作为饲草利用,都能越冬并有较好的生产性能,但甘肃红豆草在适应性和生产性能方面明显优于阿尔冈金紫花苜蓿。甘肃红豆草能够完成整个生育期,而阿尔冈金不能完成整个生育期,越冬率高出阿尔冈金0.8%~4.2%,完成营养生长所需的时间比阿尔冈金少11~28 d,种植第2、第3、第4年,干草产量比阿尔冈金分别高出72.4%,59.2%和60.5%,差异极显著。Sainfoin（Onobrychis viciaefolia cv.Gansu）and alfalfa（Medicago sativa cv.Algonguin）were introduced and their adaptability and production performance were studied in Xiahe County of Gansu Province where the altitude was 3 050 m.The result showed that two forages could overwinter and had good performance,and sainfoin was better than alfalfa.Sainfoin could complete all growth stages,but alfalfa could not.The overwinter rate of sainfoin was 0.8% to 4.2% higher than alfalfa.The time of sainfoin for completing vegetative growth was less 11 to 28 days than alfalfa.The dry matter yield of sainfoin was 72.4%,59.2% and 60.5% higher than alfalfa in the seco-nd,third and fourth year of being planted respectively.

关 键 词：高寒地区 豆科牧草 适应性 

分 类 号：S812[农业科学—草业科学] S543[农业科学—畜牧学]