Ala. Code § 2-9-3

The Agricultural Fund shall not be expended upon any work or activity of any department, institution, bureau, commission, board or other state agency in connection with the Alabama Agricultural Experiment Station System or the Alabama Extension Service or any work or activity which is assigned to any department, institution, bureau, commission, board or state agency other than the Department of Agriculture and Industries or which is not definitely assigned to and defined as a part of the proper work of said Department of Agriculture and Industries. Said fund shall be expended exclusively for the expenses of the regulatory control and administrative work of the Department of Agriculture and Industries, except as otherwise expressly provided by law.