We use Broiler Litter. You get more than 3 elements, and, it builds Organic Matter in our stony, high-clay soils. That, and, it's cheap, as I am in the middle of the Meat-Chicken Industry. Delivered & spread, $40 bucks a load ( about 8 tons-per load).
Smells funky, until it rains. However, you've never seen such pretty Fescue and Bermuda Grass. Wouldn't raise Cattle nowhere else.
We used the same until one group got control of all the rights to the manure. We spread the manure from the feedlot on our pastures. I agree GaryBob, the poultry manure is a good buy as long as you follow all the EPA rules that are set forth.
The "stuff" we call "Litter'' isn't the toxic and corrosive straight, liquid feces, that I think you are describing. Therefore, we don't have to follow as strict a Protocol as with Egg Farm, or Swine ''slurry''.
Raising Broilers , is a little different than an Egg Operation. I don't know how to explain it in Y'uns' terms, but, it's like comparing a drylot Dairy Farm to a Cell-grazing scenario. Most buildings used by the Integrators' Contract Growers are 40' X 400', and 14,000 baby chicks are placed in them, to ''run loose'', eat, and gain weight for their 56 to 63-day lifespan. These buildings have a dirt floor, and, the floors are covered in either Hulls, Saw-dust, or Shavings (about a 10-inch depth). Once a year, after 5 flocks ( 8 wks each), the Growers ''clean-out'', and replace the Bedding with new, clean Shavings or Hulls. Flexsteel Furniture and Wabash Trailers both have Factories in Harrison, AR, that make various hardwood components for further-assembly somewhere else at other facilities, therefore, Oak shavings are what Tyson & Butterball Growers use in this area.
Fescue's already ''greening up'', at 36 degrees, 30 minutes North Latitude (otherwise known as the Missouri/Arkansas Border).