How To Speed Deterioration Of Leaves?

Q: My mother has big pecan and oak trees. This year I dumped the fallen leaves in a low part of her back yard in an effort to build it up. How can I speed their deterioration. 

A: If you have some old lumpy fertilizer in your garage, hastening the decomposition of tree leaves is a perfect use. Shatter the lumps with a hammer and scatter them on the pile. I would start with a pint of fertilizer on a 10′ x 10′ area and evaluate in a couple of months.