The fertilizer misunderstandings of farmers mainly include:
One is misunderstanding that "fertilizer is nitrogenous fertilizer" and only engages in single fertilization and neglects balanced fertilization. The proportion of nitrogen, phosphorus and potassium in soil fertigation in China should be 1:0.5:0.4, but the current ratio is 1:0.4:0.17.
Second, neglecting the changes in the conditions of the land and fertilizing the “old experience†has exacerbated the imbalance in the internal structure of the soil.
The third is not to pay attention to deep-seated fertilization, but extensively engage in "big floods and big fertilizers." This not only affects the absorption of nutrients by crops, but also causes large quantities of chemical fertilizers to remain in the soil. It is understood that at present, the utilization efficiency of chemical fertilizers in China is only 35%, compared with 80% in developed countries.
According to the soil and fertilizer experts, the current prominent problem in the use of chemical fertilizers in China is that many farmers do not understand science, balanced fertilization, and excessive application of single-fertilizer fertilizers. As long as science balances fertilization, it will not cause negative effects, and it can also produce green and pollution-free products that meet the standards, because chemical fertilizers are themselves “synthetic nutrition†of crops. Fertilizer pollution in agricultural products is like people have “obesity†and there is excess nutrients.
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