我省1979年有116万亩紫花苜蓿,素有种植苜蓿改土肥田、生产饲草的习惯,尤其在播种技术措施上经验较丰富。一、种子处理为了提高苜蓿种子发芽率,保证苗齐茁壮,播种前对苜蓿种子处理:首先要去杂,即将苜蓿种子内的混杂物,尤其是兔丝子的种子清除干净,以便机播或耧播下种均匀。第二,促进发芽。苜蓿种子一般含有5—30％的硬籽,新收的种子甚至可达65％。这种硬籽水分不易浸透,仅为4.9—11.7％能在田间发芽。据我们试验,当年种子播前在 In 1979, 1.16 million mu of alfalfa was planted in our province. It is known to cultivate alfalfa and to grow forage grass. In particular, it has more experience in seeding techniques and measures. First, the seed treatment In order to improve the germination rate of alfalfa seeds to ensure seedling Qi sturdy, alfalfa seed treatment before sowing: first go to miscellaneous, about alfalfa seeds in the mixture, especially the seeds of the rabbit silk remove clean to sow or Sowing under the kind of uniform. Second, to promote germination. Alfalfa seeds generally contain 5-30% hard seeds, with newly harvested seeds up to 65%. Hard hard to penetrate this hard seed water, only 4.9-11.7% can germinate in the field. According to our experiment, the seeds were sown before