Fertilizer: A chemical or natural substance added to soil to increase its fertility
Herbicide: A substance that is toxic to plants and is used to destroy unwanted vegetation and weeds.
Fungicide: A chemical that destroys fungus.
Seed treatments: The term "treated" means given an application (seed coating) of a pesticide or fungicide that’s designed to reduce, control or repel disease organisms, insects, or other pests that attack seed or seedlings grown from treated seed. Treated seeds can reduce the amount of pesticide of fungicide that has to be applied to the land.