nitrogen and phosphate-rich chemical compounds that are used to increase the productivity of croplands; fertilizer production usually includes the use and disposal of petrochemicals

DoF Department of Fertilizer DAP Di-Ammonium Phosphate

Supplements to improve plant growth that are commonly used on agricultural lands, as well as in urban, industrial, and residential settings.

Nutrients added to improve plant growth.

Any natural or manufactured material added to the soil to supply one or more plant nutrients.