3. (1) The Government may, by notification in the official Gazette, declare any area specified in the notification to be a controlled area for the purposes of this Act.(2) The Government may, by notification in the official Gazette, fix a minimum price or minimum prices for the purchase in any controlled area of sugar-cane intended for use in any factory.(3) The Government may, by notification in the official Gazette, prohibit in any controlled area the purchase of sugar-cane intended for use in any factory otherwise than from the grower of the sugar-cane or from a person licensed by the Government to act as a purchasing agent.