A basic Act relating to loans, mortgages and other security interests in moveable and immovable property. Part V lays down provisions relating to mortgages or moveable and immoveable property, including agricultural land and it is established where the mortgaged property is agricultural land and the balance of such lands remaining in the possession of the mortgagor is less than five acres, and default has been made in making any payment of principal or interest due under the mortgage agreement,