Chemical fertilizers can help farmers increase their yields, but if they are not used properly, they can cause big troubles. Not only do they have a negative effect on crops, they may even produce toxic and harmful substances. Some fertilizers should be used with caution in vegetables.
Nitro fertilizer
Ammonium nitrate and other nitrate nitrogen fertilizers are generally not suitable for vegetables. After the nitrate nitrogen fertilizer is applied to the vegetable field, the nitrate content in vegetables will be doubled. Nitrate is easily reduced to nitrite in the human body. Nitrite is a highly toxic substance and is extremely harmful to the human body.
Chlorine-based fertilizer
Compound fertilizers containing ammonium chloride and potassium chloride are called double-chloride compound fertilizers, and should not be applied to tomatoes and potatoes. After the dechlorinated fertilizer is decomposed in the soil, the ammonium or potassium ions will be adsorbed by the soil or absorbed by the vegetables. When the concentration reaches a certain level, it will cause poisoning to the vegetable root system and seriously cause vegetable death. However, low-chlorine (referring to potassium chloride only) compound fertilizers can effectively supplement the chlorine element, can promote the growth of tomatoes and potatoes, and can be used reasonably to increase yield.
Nitrogen fertilizer
Leafy vegetables do not spray nitrogen fertilizer on the leaves. Vegetables are sprayed with nitrogen fertilizer, and their ammonium ions are easily converted into acid ions and absorbed by the leaves after contact with the air. In addition, leaf vegetables have a short growth period, and it is easy for nitrate to accumulate in the leaves. Therefore, avoid spraying nitrogen fertilizer on leafy vegetables.
Microfat
The application of micro-fertilizers to vegetables can promote high-quality and high-yield vegetables, but the demand for trace elements in vegetables is extremely small. Excessive application of micro-fertilizers not only causes waste, but also easily produces toxic to crops and pollutes the environment.
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