Common misunderstandings in the use of chemical fertilizers

Myth 1: Fertilizer is an artificial chemical product. Fertilizer application is harmful to the environment, wildlife and humans.


Fertilizer is actually a substance that plants can absorb, also known as "plant nutrition." The nitrogen, phosphorus, potassium, sulfur and other nutrients in the fertilizer are the same as those in our body and in the food. Fertilizer is also non-toxic.


Misunderstanding 2: Since there are elements such as nitrogen, phosphorus and potassium in nature, there is no need to apply fertilizer.


The nutrients in nature are not comprehensive and are not exactly what plants need. If planted on natural land, one season of cultivation may consume decades of nutrient accumulation. Therefore, the application of chemical fertilizers is a necessary means to supplement nutrients in the soil.


Misunderstanding 3: Organic agriculture does not use fertilizer, especially fertilizer


There is currently no accepted, strict definition of organic agriculture. Organic farming also uses fertilizers, mainly using natural organic fertilizers. In fact, natural minerals are chemically processed. Most of the impurities such as heavy metals have been discharged with the waste residue. The content of harmful substances is greatly reduced. Chemical fertilizers are much more pure than natural minerals and have less harm to the environment.


Misunderstanding 4: Fertilizer and organic fertilizer are the same, and organic fertilizer should be used completely.


If only organic fertilizer is used, it is difficult to meet the comprehensive and sufficient nutrient demand of the crop, and it is difficult to achieve high yield, high quality of the crop, or a large increase in the area of ​​cultivated land. In addition, the ratio of nitrogen, phosphorus and potassium in organic fertilizers varies greatly. It is difficult to achieve balanced fertilization requirements only with face fertilizers. For example, corn is only applied with organic fertilizer. To meet nitrogen requirements, phosphorus nutrients should exceed the demand for corn. 5 times, and fertilizer is the most convenient supplementary nutrient measure for balanced fertilization. The combination of organic fertilizer and fertilizer is more effective.


Myth 5: Organic agriculture protects the environment and wildlife, and conventional agriculture has a strong impact on the environment.


Whether it is organic agriculture or party-based agriculture, the correct and effective use of fertilizers does not pose a threat to the environment, and the high yield of conventional agriculture allows us to obtain sufficient food on limited land, if all rely on organic agriculture, the land of the world Nor can it feed the world's population, which requires large-scale cultivation of cultivated land, which will have a greater impact on the environment and wildlife.


Myth 6: Organic food is safer, healthier and better quality


There is no definitive evidence in the world that the quality of organic and conventional foods is different. Even the World Organic Foods Association and responsible organic food producers have never claimed that organic foods are of higher quality than conventional foods. It is recognized that proper application of chemical fertilizers can improve crop quality.


Misunderstanding 7: Fertilizer losses pollute rivers, oceans, and cause eutrophication. Although leaching of chemical fertilizers can cause water pollution, there are many factors in water pollution, and fertilizer is not the main factor. If the timing of fertilization and the amount of NPK applied are controlled during chemical fertilizer application, and scientific fertilization is used, the loss of fertilizer can be easily controlled.


Misunderstanding 8: Without fertilizer, it can also feed the world population


If there is no fertilizer, the world will reduce the production of one-third of the grain; all forests, wild animal sanctuary grassland, etc. must be used as cultivated land; the fertilizer industry has played an important role in improving agricultural production, agricultural product quality, and people's living standards. . China's fertilizer production and use departments have an obligation to actively promote the role of chemical fertilizers, to eliminate people's negative impression of chemical fertilizers; at the same time, we should also vigorously carry out scientific fertilization and agrochemical services, guide farmers to scientific fertilization, and minimize the impact of chemical fertilizers on the environment. .

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