For the purpose of providing funds to defray the cost of formulating, administering, and enforcing educational and trade stimulation efforts, a fee or assessment shall be established and collected upon the volume of the commodity which is marketed or upon some other uniform and equitable basis.

The fee may be collected separately by the marketing program committee or may be combined with any fee which is collected for general administrative purposes, in which case the marketing program committee may recommend to the director, and the director may approve, the proportions of the combined fee which may be expended for each of such purposes.