What are some major ways chemistry is applied in agriculture besides pesticides and fertilizer?

Question

What are some major ways chemistry is applied in agriculture besides pesticides and fertilizer?

Answer 1

Pesticide chemistry

Fertilizer chemistry

Soil chemistry

Answer 2

Agricultural Chemistry is the study of both chemistry and biochemistry which are important in agricultural production, the processing of raw products into foods and beverages, and in environmental monitoring and remediation. These studies emphasize the relationships between plants, animals and bacteria and their environment

Answer 3

Chemistry allows one to monitor the soil environment and the plant and harvest analysis. An example is tissue analysis of a crop plant to insure that it is not lacking for anything.