What is nitrogen fertilizer?

1. Common types

1. Ammonium nitrogen fertilizer: including ammonium bicarbonate, ammonium sulfate, ammonium chloride, ammonia water and liquid ammonia. The benefit of this type of nitrogen fertilizer is that it is easily absorbed by the soil, but it also has some disadvantages. For example, it is easily oxidized into nitrates and loses its original efficacy. At the same time, high concentrations can also be harmful to crops and inhibit the absorption of elements such as magnesium, potassium, and calcium. And it is easy to volatilize in alkaline soil.

2. Nitrate nitrogen fertilizer: including sodium nitrate, calcium nitrate and ammonium nitrate, etc. This type of nitrogen fertilizer is more soluble in water, but is not easily preserved in the soil and easily turns into gas and evaporates. Therefore, water it when using to accelerate absorption.

3. Ammonium nitrate nitrogen fertilizer: mainly ammonium nitrate and its related compounds.

4. Amide nitrogen fertilizer: commonly known as urea, it has a high nitrogen content, but it is not suitable for all crops. Nitrogen can easily cause plants to grow too tall and delay flowering and fruiting.

2. Effects and efficacy

Nitrogen fertilizer promotes plant growth. Nitrogen deficiency often causes the plant to be short, have weak branches, have fewer roots, and can also cause the leaves to turn yellow and become dull. Excessive nitrogen fertilizer will cause it to grow too lush, hinder its flowering and fruiting, and affect the yield of some crops.