Fertiliser having high nitrogen content is

Q. Fertiliser having high nitrogen content is:

1. Urea
2. Ammonium nitrate
3. Ammonium sulphate
4. Calcium citrate

Answer: Ammonium Nitrate

A fertilizer or fertiliser is any material of natural or synthetic origin (other than liming materials) that is applied to soils or to plant tissues to supply one or more plant nutrients essential to the growth of plants. Many sources of fertilizer exist, both natural and industrially produced.

Ammonium nitrate is a chemical compound, the nitrate salt of the ammonium cation. It has the chemical formula NH₄NO₃, simplified to N₂H₄O₃. It is a white crystal solid and is highly soluble in water. It is predominantly used in agriculture as a high-nitrogen fertilizer.