Food problems have always been a matter of great concern. With the improvement of people's living standards, the requirements for food are also stricter. Green pollution-free products have become the basic requirements for people. Farmers' friends, when planting vegetables, have strict requirements on fertilization and pesticides, and strive to ensure the safety of vegetables and food. In the process of vegetable cultivation, fertilizer can increase farmers' income, but several fertilizers should be used with caution during planting.
First, the nitro fertilizer
Common nitro-fertilizers are ammonium nitrate and nitrate-nitrogen fertilizers. Vegetable cultivation is not allowed. This is because nitrate nitrate fertilizers tend to cause the nitrate content in vegetables to multiply after entering the vegetable field. People eat vegetables containing this substance. It is easily reduced to nitrite, which is a highly toxic substance that is extremely harmful to humans, because for the health of the people, growers should never apply this type of fertilizer.
Second, chlorine based fertilizer
Chlorine-based fertilizer is a compound fertilizer containing ammonium chloride and potassium chloride. It is also called double-chlorine compound fertilizer. It is not allowed to be applied to vegetables such as tomatoes and potatoes. This is because the dichlorinated fertilizer decomposes in the soil to form ammonium ions and potassium ions. These two ions are easily absorbed by vegetables, and if the absorption concentration reaches a certain level, it has a toxic effect on the roots of vegetables, which will cause a large number of deaths of vegetables. In order to avoid the loss of growers, everyone should pay attention.
Third, nitrogen fertilizer
Leafy vegetables should be sprayed with nitrogen fertilizer when planting. This is because after spraying nitrogen fertilizer on vegetables, the ammonium ions in the nitrogen fertilizer will react with air to convert into acid ions, which are absorbed by the leaves of the growing vegetables, but due to the short growth period of the vegetable leaves, the nitrates accumulate in the leaves, which is related to the country and The internationally regulated production standards for pollution-free vegetables do not match, and excessive application of nitrogen fertilizer is likely to cause long-term growth of vegetables, especially the flower bud differentiation of melons and solanaceous vegetables, which leads to a decline in the yield of vegetable varieties.
Fourth, micro-fertilizer
Micro-fertilizer is actually good for vegetables and can promote high-yield vegetables. However, in fact, there are not many trace elements required for vegetable growth. If the application of micro-fertilizer is improperly controlled, it is easy to cause fertilizer waste, and it is easy to poison the crops. It is better to not use this fertilizer when it is absorbed and it will pollute the environment.
The above is the introduction of fertilizers that should not be used for vegetable cultivation. For the reasons why they are not usable, the corresponding introduction also gives the answer. Pollution-free vegetables are becoming more and more popular. For the sake of the farmers' own interests and the health of consumers, everyone must pay attention to fertilization. I hope that the contents of Xiaobian can help the majority of vegetable growers. For the cultivation of fertilization elements, do you have anything to add? Welcome to share.
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