Originally Posted by Crimson Lawn
Yes, very true about a soil test. It does, however, over time, trend toward easing compacted clay soils combined with aeration. Some of our clay soils are very acidic so the gypsum helps with the ph.
Gypsum does little to nothing for pH adjustment. If anything, you will see a decrease in pH, not an increase. Not a good choice for acidic soils. It also will not help a mechanically (physically) compacted soil. Understand what your amendments will do to the soil before you apply them as you can easily do more damage than good.