Currently have a large locus tree stump that is roughly 35 inch in diameter. By digging around it and sawing as much as possible, it is roughly 3 inches below grade. To speed up the decay I read the best thing to do is to put plastic over the stump then cover it with three inches of topsoil. Supposedly, that would speed the fungal breakdown. Another source suggested drilling one inch diameter holes in circular pattern about 2 inches deep. The next step was filling the holes with Epsom salt, then covering with top soil. Just curious, is there is a best approach to speed up the decay of a stump? Half of the tree was cut down last fall and the other half in mid April,2024. There are no sprouts or growth from the roots. THANKS!!