do tree stumps decompose
How to Decompose an Old Tree Stump. Old tree stumps in the ground can be unsightly, create an obstacle when performing yard work and take up space you might want for another purpose. Unfortunately, removing a stump often involves digging up the soil and ripping out the root system. If you aren't interested in manual labor and don't have an immediate need to remove the old tree stump, you can decompose the stump over time by cooking it with a trapped moist heat and an excess of nitrogen. Chainsaw.