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我是泾阳县赛众工作部赛众科技宣传员周航,工作中发现农民在生产上存在的最大问题就是施肥观念传统,即过量的使用化肥、农药、化学除草剂等,其结果导致植物所需的微量元素和有益元素严重缺乏,土壤酸化。通过对我地果园、菜园土壤调查,pH值大都在4.5~5.5之间。同时,过量使用化学农药,还导致土壤有益微生物被杀灭,植株抗病虫害能力下降,免疫力降低。作为
I was Jingyang County Public Works division race science and technology publicity officer Zhou Hang, work found that farmers in the production of the biggest problem is the traditional concept of fertilization, that is, the excessive use of fertilizers, pesticides, chemical herbicides, the result of plant required Serious lack of trace elements and beneficial elements, soil acidification. Through to my orchard, garden soil survey, most of the pH value of 4.5 to 5.5. At the same time, excessive use of chemical pesticides has also led to the killing of beneficial soil microorganisms, plant resistance to pests and diseases, decreased immunity. As