august 2004 indiana farmland values & cash rents continue to climb craig l dobbins and kim cook the june purdue land survey found that on a state wide basis bare cropland ranged in value from 2 131 per acre for poor 3 278 top table 1 average had an estimated of 693 12 month period ending this was increase 8 4 7 0 respectively increases large have not been experienced since 1996 1997 when reported 15 part difference reflects productivity differences as measure respondents provide estimate long term corn yields yield 105 135 165 bushels bushel different qualities very similar ranging 19 88 20 34 transitional moving out agriculture increased 9 year