All fees collected by the director under the Nebraska Soil and Plant Analysis Laboratory Act shall be remitted to the State Treasurer for credit to the Soil and Plant Analysis Laboratory Cash Fund, which fund is hereby created. Such fund shall be used by the department to aid in defraying the expenses of administering the Nebraska Soil and Plant Analysis Laboratory Act. Any money in the Soil and Plant Analysis Laboratory Cash Fund available for investment shall be invested by the state investment officer pursuant to the Nebraska Capital Expansion Act and the Nebraska State Funds Investment Act.