狼毒草,闻其名便可知其性。它是生长在草原上毒性很大的一种野草,羊吃了即刻中毒,轻者大病一场,影响育肥成长,重者不治而亡。牧民们对狼毒草恨之入骨,想尽办法要除尽它们。可是,在偌大的一个草场里,即使是集中人力进行搜索拔除,也只能是收效甚微,缓不济急。于是,人们寄希望于省力的科学产品——除草剂。有没有这种 Wolf poison grass, smell its name can know its nature. It is a kind of weed that grows on the grassland with great toxicity. The sheep ate instant poisoning, light a serious illness, affecting the fattening and growth, severe cases died. Pastoralists hate the Wolf poison grass, trying every means to eliminate them. However, in a huge grassland, even a concentrated manpower search and removal can only be ineffective and unharmed. So, people hope that the labor-saving scientific products - herbicides. There is no such