The Game and Parks Commission is authorized to make rules and regulations for carrying out, administering, and enforcing the provisions of sections 37-901 to 37-914; PROVIDED, that the commission shall limit the number of areas proposed for licensing so that the total acreage licensed for game breeding and controlled shooting areas in any one county shall not exceed one percent of the total acreage of the county in which the areas are sought to be licensed. No license shall be issued for any area whose boundary lies within five miles of the boundary of any other area so licensed under the provisions of sections 37-901 to 37-914. No license shall be issued for any area whereon hand-reared mallard ducks are shot or to be shot if the area lies within three miles of any river or within three miles of any lake with an area exceeding three acres; PROVIDED, that a license may be issued for such area for the shooting of upland game birds only, and the rearing or shooting of hand-reared mallard ducks thereon shall be and is prohibited.