RE: Corn Planting Question
If you have access to a planter, I would suggest using it. This allows tilling and spraying with little damage to the corn corp. Corn can be spread with a hand spreader and lightly disced in. Be sure not to overseed the corn if you use a hand spreader.
The soil pH is not as critical in corn planting as it is with some legumes. However, soils with a high acid pH will decrease the effectiveness of any fertilizer the crop receives. Be sure to fertilize effectively, even if you have to buy several hundred pounds of 12-12-12 in sacks at the local nursery and spread them by hand.
There is no hybred corn that I know of design specificly for wildlife. The hybred corn varieties that regular crop farmers use will yield more then the sacks of corn that can be purchased for feed. However, even the feed corn can produce enough for foodplots if well fertilized.
Planting depth I believe is in the 1 to 2 inch depth range.
One suggestion, I will make is looking into the roundup ready corn if you have any type of spraying equipment. The roundup ready corn will allow you to spray roundup on the corn plants to help control the weeds.
If you have the equipment and the money, planting corn similar to way farmers do is best. However, I planted about 3/4 of an acre of feed corn crop last year by plowing, discing, spreading seed with a hand spreader and discing the seed in lightly. I added 100 lbs of 12-12-12 and a 50 lbs 0f some type of high N fertilizer at planting. My intent was to hit this plot with 100 more lbs of the high N fertilizer when the plants were up about a foot. I never did get around to doing this. With no weed control, I had a fairly good yield of corn with ears in the 6 to 9 inches long range. My little patch was gone by Thanksgiving.