Although my property used to be part of a 50 acre farm in Illinois, north of where the glaciers stopped, so loess soil, over 100 years of use had made every bed I created a clay pit, and I had a lot of trouble.
I would recommend that you dump every good material you can find on top of your probably now frozen garden beds and wait until spring to work them into your soil. You mentioned that wild horses dump on your property. It only takes 4 months for horse manure to break down to usable and that means in the winter, too.
If your neighbors have any spoiled hay that can be your browns.
Compost piles break down faster when you turn them frequently with shovels or a fork or a rake. Mine take about 2 years bc I don't have the time to turn them.
Many gardeners compost their garden waste, but quite a few don’t make the regular effort to turn their compost! Composting is a process where microorganisms such as bacteria, fungi and protozoa are…
deepgreenpermaculture.com
Any snow will help them to break down, too.
Next year there WILL be shortages and agricultural businesses are shoring up for them. The biggest grain storage facility in our county, I have been told, plans to hoard wheat in order to make a killing in 2023.
I live around farmers and nobody yet has said that they are growing winter wheat, although I did see a field about 20 years ago, 6 miles up the road.
YOU WILL NEED YOUR GARDEN NEXT YEAR!
Composting isn't really hard to do, you just do it. Don't throw ANYTHING in the trash that you cannot compost. I don't recommend burning bc it's just too dry where you live, but I BURN all of my paper trash. Alabama is often pretty wet, so
@Dirtmechanic can burn pine needles when they have a rainy season. I try to remember that others here cannot burn, but I use a 4' x 4' fire pit surrounded by 16" x 16" cement pavers. I never burn when it's windy, and I monitor my fires.
Save your cardboard. After you work in your compost cover with cardboard--you overlap them--and cut holes for transplants next spring to keep weeds from sprouting. Weeds will LOVE, LOVE, LOVE your richer soil and I have to dig out weeds that have gotten too big bc they become PERENNIAL weeds.
Top mulch with your pine needles to keep moisture in. I have 5 pine trees north of my house, and eventually the needles that fall on my "sidewalk to nowhere" become soil.
Pine needles are a great source of organic matter for the garden. But can they be composted? Read this article to find out more about composting pine needles and see if this composting practice is right for you.
www.gardeningknowhow.com