Soil Acidification Results
Remember how I experimented with chemical
versus organic methods of acidifying the ground for our blueberries?
The results are in, and I'm afraid the chemicals won.
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I only had a dozen data points, so the results of my paired t-test
weren't significant. But there was a definite trend toward better
health among the blueberries grown on sulfur-treated soil versus those
grown on pine-needle-treated soil. The photo to the right shows
one of the stressed plants --- yellow leaves with green veins are a
textbook sign of iron deficiency due to high pH.
I guess I'll probably buy some more elemental
sulfur to drop the pH in the short term, but will also keep
applying pine needles as more of a long term fix.