通过对披碱草属牧草田间物候期的观测要求、原则、方法、记载内容及备注事项等内容进行总结和规范,以便撑握披碱草属牧草在一定区域内生长情况,物候期长短,生长发育进程,为选育和引进优良披碱草属牧草品种及其制订正确生产方案等提供规范措施。 Through the field observation requirements, principles, methods, contents and notes of Elymus herbage field phenology, we summarize and standardize the growth of elymus grass in a certain area, the length of phenology, growth Development process for the breeding and introduction of good Elymus forage species and formulate the correct production program to provide normative measures.