The marketing of agricultural products within this State affects the public interest. It is declared to be the purpose of this chapter to promote the general welfare of the State by enabling producers of agricultural commodities to help themselves in establishing orderly, fair, sound, efficient, and unhampered marketing, grading and standardizing of the commodities they produce and in promoting and increasing the sale and proper use of such commodities. This chapter is enacted in the exercise of the police powers of this State for the purpose of protecting the health, peace, safety, and general welfare of the people of this State.