Fertilizers are very rich in plant nutrients like [[1]], [[2]] and potassium.

Fertilizers are very rich in plant nutrients like nitrogen, phosphorus and potassium. 

A plant requires nutrients for its growth and development.

The nutrients are absorbed through the soil. The nutrient-supplying sources are manures and fertilizers.

The application of manures and fertilizers to the soil is one of the important factors that help in increasing crop yield and maintaining soil fertility.