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牧草在不同生长发育阶段对各种养分的需求是不同的。研究各时期植物体内各种营养物质的含量动态,不但对牧草的利用有直接意义,而且也能对牧草栽培提供必须的理论基础。自1979年起,我们陆续对羊草Aneurolepidium Chinensis(Trin)Tzvel作了全氮、磷及可溶性糖全年变化状况的初步研究。
The demand of various nutrients for forage at different stages of growth and development is different. Studying the dynamic changes of the content of various nutrients in plants in different periods not only has immediate significance for the utilization of forage but also provides the necessary theoretical basis for forage cultivation. Since 1979, we have conducted a preliminary study on the annual changes of total nitrogen, phosphorus and soluble sugar in Aneurolepidium Chinensis (Trin) Tzvel.