Compost is indeed the powerhouse in any growing system, but is particularly valuable in organic growing where chemical fertilisers are not used. Its benefits cannot be underestimated:
Marketing psychology is all about understanding the thoughts and resulting behaviour; of people who buy things.
The decision to buy goods or services, may be understood as a combination of an individual's personality interacting with characteristics of a product; in a particular situation.
To understand marketing psychology; you need to study
Knowing the customer is the starting point for success in sales.