在祖国西北地区的田野上,到处可以看到一块块开着紫花的草地,如同落满遍地蝴蝶。群众叫它为“宝贝草”,即紫花苜蓿。它是一种多年生的豆科牧草,相传在二千年前,就是公元前129年汉武帝的时候,张骞出使西域,把它从中亚细亚高原地带的波斯国带回我国,首先种植于陕西的长安,以后逐渐栽培于 In the fields of the northwestern region of the motherland, everywhere can be seen a patch of open purple grass, as if covered with butterflies everywhere. The masses call it “Baby Grass,” that is, alfalfa. It is a perennial legume forage. It was said 2,000 years ago that it was the time of Emperor Wu of Han Dynasty in 129 BC. Zhang Biao made the Western Regions and brought it back to China from the Persian region of the Central Asia region. It was first planted in Shaanxi. Chang’an, gradually cultivated in