Effectiveness of a Fertiliser

Fertilisers are chemicals widely used to increase the yield of fruit or plant. Ammonium fertilisers are inorganic ferlilizer, mainly consists of simple chemical and minerals. Most ammonium ferlisers provide major plant nutrients : nitrogen, phosphorus and potassium(NPK). 

Once added into soil, ammonium ferlisers which consists of ammonium ions are converted to nitrate ions by bacteria. Nitrate ions are absorved by plant roots.  Nitrogen is used to make proteins in stalks and leavers.