Welcome to Pleasant Places Farm Agricultural Experiment Station
Warning: this post is really only appropriate for die-hard gardeners. Everyone else will be bored to tears.
I have long been fascinated with farming/gardening "systems". What you see in the photo is not really just a bunch of junk. It is my latest experiment...and it seems to be working for a change. The system in place here is not original to me. It's a combination of square foot gardening (Mel Bartholomew) and chicken "tractoring" (Andy Lee). For the uninitiated, the "tractor" is a bottomless, moveable chicken pen.
My tractor is actually my brooder. You will see the cord to the heat lamp going in and note that the sides are clear pvc roofing panels. This would prove way too warm for a grown hen, but with ventilation of the top on hot days, it makes a great brooder. Chicken tractors are usually a good bit larger, made to house layers or broilers. Our brooder/tractor is about four foot square and three foot deep. If I had to do it over again, it would be less deep as it is a little hard to reach over in there and hold up the lid at the same time.
This is our second batch of chicks this season. With the first batch, they were brooded over the bed that you now see draped with the agrobon row cover. They were bedded on straw over which they deposited their manure during the brooding weeks. After they were moved on to the barn, the tractor was moved over four feet, I put down about a two-inch layer of homemade compost over the straw/manure mat they'd created and sowed lettuce. Normally you should not sow vegetables into raw manure, but the finished compost is a buffer so that vegies don't contact the manure and the straw adds enough carbon to the manure's high nitrogen that plants shouldn't be burned. Also, it should break down quickly and provide food for the growing plants. It seems to be working. The lettuce, though I planted a bit late, has sprouted and is growing. It does require daily watering and I think maybe an improvement would be to install a soaker hose underdeath the straw/manure layer before the brooder tractor is even put on. (Of course, the hose wouldn't be turned on until the seeds were sown.) The 4x4 bed is covered with Agrobon for two reasons: We have a cat who would probably try to use the bed as a litter box and that side of our house is getting very hot on these sunny days and I was trying to provide a little shade and slow down moisture loss just a bit. I may have to switch to some shade cloth soon.
Soon we will move the second batch out of the brooder, and I will repeat the process with bed #2. I can continue to make more beds, which given the destruction being done to my regular garden (see previous post) might be wise, or I can leave it at two beds and put the brooder back on bed #1 next year. By that time, the old straw/manure mix will have broken down and I will put down another layer of bedding on top of it. In this manner, the soil will built layer by layer. At least that's the plan.