The harm of excessive use of chemical fertilizer

Chemical fertilizer must be a very familiar fertilizer for growers. No matter what crops are planted, the reasonable application of some chemical fertilizers is of great help to its yield. However, in order to increase the yield of crops, many growers will blindly apply a large amount of chemical fertilizer, which is actually very harmful. So what are the dangers of excessive use of chemical fertilizer? The following editor will give you a brief introduction, let's have a look!

1. Deterioration of soil properties.

When growing crops, if a large amount of a single element fertilizer is applied, then its nutrition can not be fully absorbed and utilized by the crops. And some common essential chemicals such as nitrogen, phosphorus and potassium in chemical fertilizers are easily fixed by the soil and transformed into various chemical salts. If it is continuously accumulated in the soil, it can easily lead to the imbalance of soil nutritional structure, the deterioration of physical properties, and the content of harmful metals and bacteria in some soil will also exceed the standard. And because chemical fertilizer does not contain organic matter and humus, soil aggregate structure will also be destroyed, soil consolidation phenomenon, which is very disadvantageous to the growth of crops.

2. The quality of products is declining.

If a large amount of certain chemical fertilizer is applied, it is very easy to lead to crop malnutrition. It affects the transformation and synthesis of substances in crops, resulting in the decline of crop quality. For example, some melons and fruits with insufficient sweetness and low storability may be caused by excessive application of chemical fertilizers. Because the growth of crops needs not only nitrogen, phosphorus and potassium, but also various trace elements such as calcium, iron and zinc. Long-term single application of chemical fertilizer will certainly lead to the imbalance of nutrients in the soil, resulting in a decline in product quality.

3. Environmental pollution

Due to the application of too much chemical fertilizer, it is easy to cause some water-soluble nutrients in the soil to be leached into the river by Rain Water and irrigation. As a result, groundwater and rivers in some areas are polluted and eutrophicated, which is also very disadvantageous to the growth of aquatic organisms. And the extensive use of chemical fertilizer will also cause harm to earthworms and various beneficial microorganisms in the soil, resulting in death and so on. Some nutrient elements in the soil will also accumulate excessively, resulting in changes in the physical and chemical properties of the soil, which is very disadvantageous to its environment.

4. Large ratio of output to income

When applying fertilizer, many growers in our country will ignore the characteristics of fertilizer and adopt traditional simple fertilization methods such as washing fertilizer with water and bombardment. And there is also a large amount of excessive fertilization, resulting in an increasing cost of growers, although the yield will also increase. However, the phenomenon of increasing production without increasing income is very serious. And too much use of a single chemical fertilizer, nutrition imbalance, nutrient imbalance, resulting in the production of a large number of inferior products, not only low prices, but also affect sales. And too much chemical fertilizer will also lead to too much nitrate in vegetables, which is very easy to form nitrite in the human body, which is a threat to human health.

The above is a brief introduction to the harm of excessive use of chemical fertilizer. That's all for today's introduction. This article is for reference only. I hope it can help you all.