我们经过长期下乡及田间深入调查发现,农民在施肥上存在一些误区急需改正,否则既造成浪费,又影响其它营养元素的吸收。如:①分不清什么是氮肥、磷肥、钾肥;②不清楚各种肥料的使用方法;③不清楚哪种作物该施哪种肥料。我们知道农作物生长需要较多的营养元素是碳、氢、氧、氮、? After a long-term investigation into our countryside and in the field, we found that some misunderstandings on the fertilization of farmers are in urgent need of rectification. Otherwise, waste will be caused and the absorption of other nutrients will also be affected. Such as: ① can not tell what is nitrogen, phosphate, potash; ② do not know how to use a variety of fertilizers; ③ it is not clear what kind of crop what kind of fertilizer. We know that more nutrients needed for crop growth are carbon, hydrogen, oxygen, nitrogen,