All necessary expenses incurred in carrying out the provisions of sections 21.111 to 21.122 and the compensation of officers, inspectors, and employees appointed, designated, or employed by the commissioner, as provided in such sections, together with their necessary traveling expenses, together with the traveling expenses of the members of the advisory seed potato certification committee, and other expenses necessary in attending committee meetings, shall be paid from, and only from, the seed potato inspection account, on order of the commissioner and commissioner of management and budget.