old corn kernels

So looking for giveaway stuff in the area for my upcoming watering system on the acre, I came across a several medium sealable plastic barrels. The owners told me they give it for free if I take all the corn that was stored inside of them for a couple of years now. Its only corn kernels, about 500 kg, in blue barrels, air tight. Some has a few moths and other insects in it. I had no other choice but to leave them on the field where they are exposed to sunlight.

Question: How can I use them well to fertilize the land? Can I build them in my soon-to-be hugelkultur bed? Can I compost them or make a tea out of them? Im looking for ideas, if you happen to have one, please dont hesitate to share!

I would not like to plant them, I dont have any animals yet (only a number of trees and shrubs freshly planted beside a well.) The sooner I start to process them, better.
Thanks!

I would look into composting the corn, or feeding it to animals.  If you have pigs, they should be able to eat several year old corn no problem.  For composting, I might consider soaking the corn in water before I add it to the compost.  The super dry kernels will be a hindrance to decomposition, because they won't get enough moisture with normal compost.  As for adding it to hugelkultur beds, I personally haven't heard of any compostables being used in large amounts inside of the beds.  This is generally left to wood, leaves, grass, and soil.  Paul even suggests that the wood is put in as large pieces, and not to be chipped. This gives a longer and more sustainable life to the hugel beds.  

Ditto what William said.  That corn will become nitrogen rich if you run it through the digestive tract of a chicken or pig.  They'll eat it as is, but will really love it if you sprout it.  Sprouting grains is easy: put a couple of inches of grain in a bucket, add some non-clorinated water, and give it 4 days.  Chickens go crazy for freshly sprouted grains, including corn.  

Otherwise, if you don't have animals who can eat it, I'd sprout it, and then once it starts growing, add it to a compost pile.