o Nitrogen Fertilizers
These fertilizers contain nitrogen, which is necessary for the development of crops. The main constituent of chlorophyll – Nitrogen, helps plants maintain a balance in the process of photosynthesis and is also an integral part of amino acids and proteins in plants.
o Phosphorus Fertilizers
The efficiency of a fertilizer hugely depends upon effective Phosphorus content. It plays a crucial role in cell growth and proliferation. Phosphorus fertilizers are the main source of inorganic phosphorus in agricultural soils and act as a key substance in the overall growth of the plant.