I have returned from the local garden center with a 40# bag of
pelletized gysum. I have two areas in mind that I wish to further "break
down" the clay soil to a more friable condition with better tilth and
not as hard packed as it currently is. My questions a At what rate
should this gypsum be applied?
Can I "top dress" with this gypsum or is it necessary to work into the
soil? When should I see results?