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研究星星草人工草地地上部N、P、K、Na、Ca、Mg含量的季节动态及其在不同器官和不同株高的分布情况。结果表明，在生育期间，元素含量由大到小的顺序均为K＞N＞P＞Na＞Ca＞Mg。其中K、N、P、Na和Mg随着生育期的进程含量递减，而Ca在生育后期变化较小。供试元素积累量及积累速率的季节动态与生物量的变化趋势较为一致，即先升后降。在开花期后元素和干物质开始向根部运输。N在穗中最多，P、Ca、Mg在叶中最多，而K和Na则主要分布在茎中。近地面和茎的最上部元素含量相对较少。开花期为星星草最适合的收获期。
The seasonal dynamics of N, P, K, Na, Ca and Mg contents in shoots and their distribution in different organs and plant height of Artificial grassland were studied. The results showed that during the growth period, the order of elements was K> N> P> Na> Ca> Mg. Among them, K, N, P, Na and Mg decreased with the course of growth stage, while Ca changed little in later growth period. The seasonal dynamics of accumulation and accumulation rate of tested elements are consistent with the trend of biomass, that is, firstly, then increased and then decreased. Elements and dry matter begin to be transported to the roots after flowering. N was highest in panicles, P, Ca and Mg were the most in leaves, while K and Na were mainly distributed in stems. Near the ground and stem the uppermost elemental content is relatively small. The flowering stage is the most suitable harvest period for the star grass.