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作者1982～1986年在青海省海北高寒草甸生态系统定位站对天然垂穗披碱草(Elymus nutans)种群的生长节律、生物量季节和年度动态,以及主要生态因子与垂穗披碱草生长发育的关系进行的研究表明,该种群地上各器官的生物量从返青到完熟一直处于不断增长的过程,9月初达极大值,9月中旬开始减少。种群地上净生物量以生育第三年最高,生长速率以拔节后期至开花期最大,作为青干草或青贮利用以乳熟期(8月中旬)刈割为宜。该草对水热条件要求不高,适于在高寒地区栽培。
In 1982 and 1986, the growth rhythm, biomass seasons and annual dynamics of natural Elymus nutans population in Haibei alpine meadow ecosystem station in Qinghai Province as well as the relationship between the main ecological factors and the growth of Elymus nutans Development of the relationship between the research shows that the biomass of various organs above the ground from turning green to maturity has been in a continuous process of growth, reached its maximum in early September, began to decrease in mid-September. The aboveground net biomass of the population was the highest in the third year of growth, and the growth rate was the largest from the late jointing stage to the flowering stage. It is advisable to mow in the stage of milky ripening (middle August) for the use of green hay or silage. The grass on the hydrothermal conditions less demanding, suitable for cultivation in the alpine region.