The general purpose and intention of this plan is to provide for the effective control, regulation, and promotion, in any and all respects, by the Producer Board, of the marketing of the regulated products within the province. The specific purposes of this plan are: a) to develop and maintain the orderly marketing thereof; b) to provide a uniform high quality of the products for the market; d) to maintain adequate advertising and promotion; e) to encourage a continuous supply for the trade; and