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沙打旺(Astragalus adsurgens pall)是豆科黄芪属多年生草本植物。沙打旺的产草量高,品质好,是各类家畜的优良牧草。据草原系草原生态化学教研组的分析,沙打旺粗蛋白质、粗脂肪和钙的含量均高于聚合草,其纤维素含量则较聚合草为低(表1)。沙打旺耐旱、耐寒、耐碱、耐瘠薄、抗风沙,在武威黄羊镇播种的第二年生长期仅灌水一次的条件下,亩产鲜草12000—16000斤,是我省河西走廊、中部干旱地区和陇东黄土高原很有栽培前途的豆科牧草,也是优良的绿肥作物和水土保持作物。
Astragalus adsurgens pall is a legume Astragalus perennial herb. Astragalus high production of grass, good quality, is all kinds of livestock fine grass. According to the analysis of grassland ecotope research group, the contents of crude protein, crude fat and calcium were higher than those of polymerized grass, and the content of cellulose was lower than that of polymerized grass (Table 1). Astragalus drought, cold, alkali, barren, wind sand, in Wuwei Huangyang town sowing the second year of growth only irrigation once per mu under the conditions of fresh grass 12000-16000 kg, is the province of Hexi Corridor, central Arid areas and the Longdong Loess Plateau are promising cultivation leguminous forages, but also good green manure crops and soil and water conservation crops.