Agricultural fertilisers are one of the agricultural inputs necessary for higher crop yields.
There are three types of fertilisers:
- Organic: those that are naturally formed with very little human involvement in their formation. Organic fertilisers can be of mineral, vegetable or mixed origin. Manure would be an example of an organic fertiliser.
- Chemical: these are mainly man-made nutrients. We also differentiate these chemical fertilisers by their manufacture: nitrogen; phosphorus and potassium. They are mainly of mineral, vegetable or synthetic origin.
- Inorganic: these are substances derived from rocks and minerals that are applied to the soil or substrate to increase the fertility of crops.
Fertilisers are beneficial in the field of agriculture: they provide the necessary nutrients that the soil lacks for agricultural use, allowing higher crop production and yields.