1. Ammonium nitrogen fertilizer: Ammonium nitrogen fertilizer includes many kinds, such as ammonium sulfate, ammonia water, ammonium bicarbonate, liquid ammonia, ammonium chloride, etc.However, there are many commonalities, such as easy to be adsorbed by soil colloids, which will become nitrate after oxidation.This kind of fertilizer is more volatile in alkaline environment.If the plant or crop absorbs too much, it will have an inhibitory effect, and if the concentration is high, it will easily produce toxicity.
2. Nitrate nitrogen fertilizer: Nitrate nitrogen fertilizer includes calcium nitrate, sodium nitrate, ammonium nitrate, etc.Its commonness is that it is more soluble in water and has no inhibitory effect on the absorption of potassium, magnesium and calcium by crops.It is mainly used in alkaline fertilizers.
3. Amide nitrogen fertilizer: Amide nitrogen fertilizer is what we usually call urea fertilizer. It contains 46.7% of nitrogen fertilizer. Among solid nitrogen, it is one of the fertilizers with the highest nitrogen content.Therefore, if you want to supplement the required nitrogen fertilizer as soon as possible to promote growth, the most common choice is urea fertilizer, the effect is better.
Nitrogen is one of the three major elements for plant growth, is indispensable, and is also the main component of protein in crops.In the case of crops, a severe shortage of nitrogen fertilizer can be life threatening.In addition, if there is a lack of nitrogen fertilizer, plants are prone to thin, yellowing leaves and other phenomena, growth will slow down.Appropriate amount of nitrogen fertilizer can help plants to carry out photosynthesis, which is beneficial to growth.
