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Soil, Compost & Mulch

Does alkaline ph mean high soil calcium?

14 years ago

Does alkaline ph mean high soil calcium?

Thank you

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Comments (3)

wayne_5 zone 6a Central Indiana
14 years ago
It could but some other elements like potassium, magnesium, and sodium are also alkailizers.
Kimmsr
14 years ago
Maybe. The only way to know is to have a good, reliable soil test done. As I recall the soils in Greece are limestone based so more than likely that would be what you have.
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strawchicago z5
14 years ago
My soil pH is 7.7, tested by EarthCo. (drgoodearth.com). I'm next to a limestone quarry. My soil has lots of limestone and dolomitic stones. The soil test came back: very high in magnesium, but short on calcium, phosphorus, and potassium. The calcium forms INSOLUBLE complexes with the excessive magnesium in the soil. University of Colorado Extension has a good article explaining how phosphorus is also NOT available in alkaline soil due to its forming complex with calcium.

Gypsum is safe to use in alkaline soil to provide calcium without raising your pH further.

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