Hi permies! i have a question for you:
I've created very long raised beds for growing annual and perennial vegetables and herbs on top of cardboard sheet mulch. I'm using mostly decomposed white pine, hay and alfalfa horse bedding
compost as the base. Most of it is black like soil and it has a sweet smell like pipe tobacco. There is still plenty of organic material that is still only partially-mostly decomposed, and it appears as if I should add some mineral substance to the compost. What sort of material shall we add to this mostly decomposed horse manure compost to make it fine, fine soil and perhaps decompose faster? I've already made the beds and I'm not willing to rake it all up and compost it further, but I will happily mix in other mediums. What shall it be? We've got plenty of sand, clay, mud, topsoil, chicken manure and hay bedding etc. here at the farm.
(Interesting, the giant compost pile at the equestrian center was so hot that it caught on fire, twice. The owners claimed that a short blue flame was covering the pile and began burning the wood walls containing it!)