近年来化肥用量增加很快,特别是农村实行生产责任制后,农民增产心切,只怕肥少,不怕肥多,往往盲目施肥,致使土壤有机质下降,土壤结构被破坏。因此有人就简单地把这种现象说成是施化肥的结果。但这并不是化肥不好,而是不合理施用方法造成的。作物需要吸收各种营养 In recent years, the use of chemical fertilizers has increased rapidly. Especially after the implementation of the production responsibility system in rural areas, peasants are keen to increase their production. However, they are afraid of becoming fertile and they are often blindly fertilizing. As a result, soil organic matter is reduced and soil structure is destroyed. Therefore, some people simply put this phenomenon as a result of fertilizer. However, this is not a bad fertilizer, but an irrational application of the method. Crops need to absorb a variety of nutrients