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以宁夏盐池县本地苜蓿XM及宁夏益科农业科技有限公司引进的15个美国紫花苜蓿品种为研究对象,综合考虑生育期、株高、密度、产草量、茎叶比、越冬率等指标,开展苜蓿引种适应性研究.结果表明,以本地种XM为对照,15个外引种紫花苜蓿在生长发育特性上存在显著差异.其中,以品种ZHM,E3006,D4,D2表现较优,其返青早,青绿期长,鲜草产量分别是对照的1.52,1.45,1.28,1.25倍,干草产量分别是对照的1.46,1.25,1.22,1.19倍,且抗旱性强,品质优良,适宜在宁夏盐池县等中部干旱带大面积推广应用.
Taking 15 alfalfa cultivars introduced by local alfalfa XM in Yanchi County of Ningxia and Ningxia Yike Agricultural Science and Technology Co., Ltd as the research objects, taking into consideration the indicators of growth period, plant height, density, grass yield, stem - leaf ratio, The results showed that there were significant differences in the growth and development characteristics of alfalfa cultivars introduced by 15 exotic cultivars XM, among which, the varieties ZHM, E3006, D4 and D2 performed better, , Green long period of fresh grass production were 1.52,1.45,1.28,1.25 times the control, hay production were 1.46,1.25,1.22,1.19 times the control, and drought resistance, good quality, suitable for Yanchi County in Ningxia Central arid zone popularization and application of large area.