mossberg93,

incorporating the manure, means tilling or mixing it in the soil, keyshunter, is right about loosing nitrogen to the atmosphere, manure is not as bad as chemical nitrogen though. incorporating saves the nitrogen from being lost.
If you apply it right before a good rain, it is not as much lost even with out tilling. Also if you have a limited amount of manure, a good way to make it go farther, is to apply it when the corn is about 10 to 14 inches tall.

Not trying to be a know it all... Just like helping people

Would horse manure work as well? Because I got a lot more of that than I do poultry manure.

Hey, mossberghunter93
Yes it can, horse manure is very good for the ground. Only down side is it can have weed seeds in it. And it dont have as much nitrogen. But all of those things can be fixed, by composting both the poultry litter, horse manure,straw,leaves etc. Not sure how big your plot is. But generally you can use about 2 tons per acre. No fertilizer is better than good compost. Can even cut down on how much lime you need.