Section ninety-six of the Agriculture Act, 1947, shall cease to have effect in so far as it limits the period during which application must be made for the approval of a scheme under section fifteen of the Agriculture (Miscellaneous War Provisions) Act, 1940 (under which grants may' be made by the Minister of Agriculture and Fisheries towards the cost of approved schemes for field drainage or the improvement of ditches or for the supply of water to agricultural land).