沙打旺也叫地丁、麻豆秧,属多年生豆科草本植物,是较理想的沙荒地绿肥作物。但由于只有二年生的植株才开花结籽、种子小、不易脱粒以及产量低,所以一般每亩收不到20斤种子。为了解决种子问题,以便扩大沙打旺的种植面积,我们于去年搞了沙打旺当年打籽的试验。于3月26日趁墒播种共70亩, Astragalus call also known as D, hemp seedlings, is a perennial leguminous herbs, is ideal for the desert wasteland green manure crops. However, since only two-year-old plants flowering and seedling, the seeds are small, not easy to thresh and yield is low, so generally received less than 20 kg of seed per acre. In order to solve the problem of seeds in order to expand the area under sowing, we conducted the experiment of planting sowing seeds in the past year. On March 26 while planting a total of 70 acres of soil moisture,