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稀土是化学元素周期表中镧系元素及钪(Sc)和钇(Y)共17种元素。稀土具有类似微量元素的性质,稀土离子能维持细胞膜的通透性和稳定性,能促进作物种子的萌发,是一种很好的生理激活剂。为了探索稀土元素对优良牧草陈种-沙打旺发芽势、发芽率的影响,本试验用不同浓度的稀土溶液浸种,试图寻找出提高沙打旺发芽势、发芽率的方法。
Rare earth is the periodic table of the chemical elements of lanthanides and scandium (Sc) and yttrium (Y) a total of 17 kinds of elements. Rare earth has similar trace elements, rare earth ions can maintain the permeability and stability of cell membranes, can promote the germination of crop seeds, is a good physiological activator. In order to explore the effects of rare earth elements on the germination potential and germination rate of good forage species, Astragalus adsurgens, this experiment used different concentrations of rare earth solution soaking in order to find a way to improve the germination potential and germination rate of Astragalus adsurgens.