桑青春是内蒙古锡林浩特蔬菜办公室一名工作人员,也是一位种了一辈子菜的老把式,当地菜农遇上问题,总是咨询他。最近几年,桑青春发现种了几十年的菜地慢慢变得不听话了,过去很容易解决的问题现在却怎么也治不好,为此他很是头疼。有一次,当地菜农陈桂英向桑青春反映说:“我们种的香菜、菠菜常会出现大面积死亡,土壤里面有很多白色的线虫,用农药也杀不死,这是咋回事啊?”桑青春也很 Sang Youth is a staff member of Xilinhot Vegetable Office in Inner Mongolia. It is also an old-fashioned kind of food that has been cultivated for a long time. Local vegetable farmers encounter problems and always consult with him. In recent years, mulberry youth found that planting decades of vegetables slowly become disobedient, the problem has been easily solved in the past but now how to cure bad, for which he is a headache. Once, the local vegetable farmer Chen Guiying reflected to Sang Qingchun: “We kind of coriander, spinach often appear large-scale death, there are a lot of white nematodes in the soil, kill with pesticide also not dead, this is what’s going on?” Youth is also very