What Is the Difference Between Agriculture and Horticulture?

According to "Brent Emerson" Although horticulture is typically classified as a subdivision of agriculture that deals with plant gardening, it's different from agriculture. It's easy to relate the two because a number of the techniques employed are used interchangeably in both sciences, for example within the cultivation of crops which is an agricultural process, many horticulture methods are employed. Horticulture may be a complete science of its own also a full industry.