You searched for: “agricultural chemistry
agricultural chemistry (s) (noun) (no pl)
The study of chemical substances for agricultural purposes: Agricultural chemistry is the science dealing with the enrichment of the soil, destruction of insect pests, and the control of plant and animal diseases.
This entry is located in the following unit: agri-, agrio-, ager (page 2)
Word Entries at Get Words: “agricultural chemistry
agricultural chemistry
The field of science in which chemicals are used to increase the quality or amount of farm crops produced.

synthetic fertilizers, pesticides, and herbicides (weed-killers) are examples of such chemicals.