(1) make written original application to the advisory board and to the board on forms prescribed by the board in conjunction with the advisory board;
(2) own or hold under lease a commercial farm which contributed more than one-half of the farmer's or rancher's gross income from all income sources for the taxable year 1976;
(3) comply with any condition imposed by the board for financial assistance pursuant to authority granted the board under Section 73-20-3.