We plant some shorter day corns, most of what gets planted around here on dryland is 95-105 day corn, we also reduce our populations, most around 16,000 but some as low as 12,500. We usually figure once you get below 20,000 it doesn't make much difference, but its hard to convince everyone of that. I am in the retail side, and a lot of our ground also gets underfertilized as guys figure they can make the rest up during the season if need be, then never do. One other system we utilize is to fallow ground. A typical rotaion in our area would be: wheat, planted in September/October, harvested in late June, early July; followed by corn planted the following April/May, and harvested September/October, or milo planted in May/June, and harvested October/November; then fallowed, either chemical or mechanical, until the next September/October, when it is planted back to wheat.