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本文分析了二种胡枝子的若干生长习性、地上部生物量分布、根系分布、叶片常规营养成分和17种氨基酸含量。二色胡枝子为多年生亚灌木,达乌里胡枝子为多年生灌木状草本。二种胡枝子种子硬实率较高,新收种子达近100％。热水浸种、擦破种皮、浓硫酸浸种都可显著提高发芽率。二色胡枝子和达乌里胡枝子的茎叶比分别是1.27和0.86,叶量都主要分布在植株中部和中上部。二种胡枝子根系发达。在0～20厘米上层中根系密集。当年播的二色胡枝子植株,根系可深达1.10米以上,水平方向伸展可达0.90米。达乌里胡枝子在生长当年根系向垂直方向和水平方向伸长可分别达0.90米和0.70米。叶片粗蛋白含量都在20％左右。
In this paper, some growth habits, biomass distribution, root distribution, leaf nutrients and 17 kinds of amino acids of two Lespedeza were analyzed. Lesser biennial Lespedeza is a perennial subshrub, Lespedeza dahurica is a perennial shrub-like herb. Two kinds of Lespedeza seedhardness rate is higher, the newly received seeds up to 100%. Hot water soaking, wiping the seed coat, concentrated sulfuric acid soaking can significantly improve the germination rate. The stem-leaf ratios of Lespedeza bicolor and Lespedeza dahurica were 1.27 and 0.86, respectively. The leaf contents were mainly distributed in the middle and upper part of the plant. Two kinds of Lespedeza root developed. In 0 to 20 cm in the upper root dense. Planting two-color Lespedeza plants that year, the roots can reach 1.10 meters deep, stretching up to 0.90 meters in the horizontal direction. Roots of dahurica in the growth of the year to the vertical direction and horizontal elongation can reach 0.90 meters and 0.70 meters. Leaf crude protein content is about 20%.