Sorry that I can't provide much insight to bale grazing. I've wanted to try it for years, but "upper management" if you will hasn't allowed it. He thinks it would be a wreck. I say we will never know until we try! But I can help with the corn situation.
The trick to grazing corn stalks with excessive amounts of corn down is increasing the stock density (basically reducing the amount of available grain per head). This can be achieved in several ways:
-1st, as previously mentioned, strip grazing the field. This gives the cattle access to a set amount of grain per time period.
-2nd, if you want to graze the entire field at once, stock it with large numbers of cows. The same end goal is achieved, however, you need the numbers to do this.
-3rd, if there is truly a very large amount of ears on the ground and the field isn't prohibitively large, you can pick up the ears. The local FFA chapters are usually looking for ways to raise money, and the chore becomes much smaller with large amounts of help. This may seem unrealistic, but you might be able to hire the club for a day for $500 or so, which brings the labor cost down to well below minimum wage. In the end, you get the ears to. Just a thought.
UNL has a calculator somewhere on their beef page ( http://beef.unl.edu/
) to estimate the amount of grain on the ground in a field. This webpage is full of great information for those on here not aware of it.