About 6 weeks ago I bought a trailer load of horse manure mixed with urine soaked sawdust (from a local stable).
I tipped the whole lot onto a plastic tarp, then covered the top with the same tarp. It was quite damp from the urine, and after a couple of weeks I uncovered it and watered it, then recovered it.
Today I uncovered it and turned it over with a shovel. I was a bit surprised that nothing appears to be composting. Most of it was still quite damp, but most importantly, when I pushed my hand into the middle, it was cold. I would have thought it would be warm, even hot in the middle of the pile.
What is going wrong?
We have been having nights down to about 10 deg C(48degF), with up to 26 deg C(73degF) during the day.
I've decided to leave the pile uncovered, but should I move it off the plastic tarp that it still sits on?