What is nitrogen fertilizer and what are the types of nitrogen fertilizer

What is nitrogen fertilizer and what are the types of nitrogen fertilizer

Nitrogen is also an indispensable element for plants. How much do you know about nitrogen fertilizer?

What is Nitrogen Fertilizer

Nitrogen fertilizers are chemical fertilizers that contain nitrogen, the nutrient element for crops. Elemental nitrogen plays a very important role in crop growth. It is a component of amino acids in plants, a component of protein, and a component of chlorophyll, which plays a decisive role in plant photosynthesis.

Nitrogen can also help crops to reproduce, and the application of nitrogen fertilizer can not only improve the yield of agricultural products, but also improve the quality of agricultural products. Nitrogen fertilizer is also a kind of inorganic salt.

Types of nitrogen fertilizers

1. Nitrate nitrogen fertilizer

Nitrate nitrogen fertilizers include sodium nitrate (NaNO3), calcium nitrate {Ca(NO3)2}, ammonium nitrate (NH4NO3), etc.

Common characteristics of nitrate nitrogen:

(1) It is easily soluble in water and moves quickly in the soil.

(2) NO3—absorption is the main absorption, and crops are easy to absorb nitrate.

(3) Nitrate fertilizer has no inhibitory effect on the absorption of calcium, magnesium, potassium and other nutrients by crops.

(4) Nitrate is a negatively charged anion and cannot be adsorbed by soil colloids.

(5) Nitrates are easily reduced to gaseous states (NO, N2O, N2) through denitrification and escape from the soil.

2. Ammonium nitrogen fertilizer

Ammonium nitrogen fertilizers include ammonium bicarbonate (NH4HCO3), ammonium sulfate {(NH4)2SO4}, ammonium chloride (NH4Cl), ammonia water (NH3.H2O), liquid ammonia (NH3), etc.

Common characteristics of ammonium nitrogen fertilizers:

(1) Ammonium nitrogen fertilizer is easily adsorbed by soil colloid, and part of it enters the clay mineral crystal layer.

(2) Ammonium nitrogen is easily oxidized into nitrate.

(3) Ammonia is easily lost by volatilization in an alkaline environment.

(4) High concentrations of ammonium nitrogen are prone to poisoning crops.

(5) Excessive ammonium nitrogen absorption by crops has a certain inhibitory effect on the absorption of calcium, magnesium and potassium.

3. Amide nitrogen fertilizer

Amide nitrogen fertilizer - urea {CO (NH2) 2}, containing N46.[1]7%, is a nitrogen-containing fertilizer in solid nitrogen.