Tuesday, June 17, 2008

Composting - a Sheet-mulch Method









People tell me all the time that they can't compost at home, because the smell will attract bears and other wildlife to their yard.
Here's a method we call "sheet mulching", done in a way that discourages wildlife. The primary access barriers are straw to reduce odors, heavy wire mesh panel to restrict digging or burrowing critters, and a few heavy flagstones, so the mesh panel cannot easily be removed.
Of course, I must qualify that with the story of the REALLY BIG BEAR who entered my backyard years ago, during an especially lean drought year. The bear flipped the flagstones across the yard, tossed the mesh panel after them, and proceeded to munch down on rotten veggies, straw, dirt and worms. When I saw the evidence the morning after, I couldn't imagine how hungry the poor bear must have been, to stoop so low on the food chain.

I won't go into too much detail describing this sheet mulching method, because the pictures should suffice. The layers are simple:
  • Flagstones, over
  • Mesh panel (heavy-duty fencing mesh, galvanized steel) over
  • Straw (preferably chemical free), about 3" thick, loosely laid, over
  • Garbage (without meat products, just organic plant matter) over
  • Last week's garbage, straw, soil and worms - pull back the loose straw, spread new garbage over old, and cover with some old, some new straw, then water generously. The worms will come up and start processing immediately.
Oh, one last thing, which I did not include in the photos - the best critter repellent you can use is urine - piss on the wet straw just before you replace the flagstones. Men might have an easier time with this than the ladies, but it can be one good reason for a gal to keep a man around.
Happy composting!
MT

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