Origin of subsoiler
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for subsoiler
I prefer young, thrifty trees, planted in furrows made with a plow and subsoiler.
Plants two-year-old trees, in trenches made with plow and subsoiler.
In planting, plow both ways with a coulter and subsoiler, then dig out.
Let Sam take the plough, and have young Thompson follow with the subsoiler.
The ordinary plough was to be followed in this case by a subsoiler, to stir the earth as deep as possible.