The cheap and easy way to remove a tree stump is to use a tree stump remover like Spectracide ($6.44 on Amazon), which is potassium nitrate (also known as saltpeter).

The attachment features dual 3.5- x 4-in. bore cylinders with a clamping force of 29,000 lbs., allowing removal of shrubs and trees along with their roots to prevent regrowth.

Gardening Stumped over what to do about a tree stump: Gardening Q&A with George Weigel Updated: Jul. 06, 2015, 2:00 p.m. | Published: Jul. 06, 2015, 1:00 p.m.

Stump remover from Leading Edge Attachments cuts stump off at the roots without scooping up dirt and rocks, leaving the stump ready to be chipped Sep 18, 2012 ...