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Thread: Test your Garden Soil Alkalinity
05-19-2006, 02:20 PM #1Liss @ Budget101.comGuest
Test your Garden Soil Alkalinity
The degree of acidity and alkalinity is measured on a scale of 0-14, with a pH of 7 neutral, 0-7 acidic, and 7-14 alkaline.
You can Test your garden soil with cider vinegar. Add a couple drops to a soil sample- if it Fizzes, the soil is Alkaline.
To Reduce Alkalinity in the soil you could add sphagnum peat, elemental sulfur, aluminum sulfate, iron sulfate, acidifying nitrogen, or organic mulches.
To Reduce Acidity in the soil you can add Limestone powder. Both types (calcium carbonate and dolomitic limestone- which will also add magnesium) work equally as well at raising the pH. To reduce the acidity organically, add 1/2" of wood ash over the soil and then mix it in. This will require repeated applications over the course of 2 or more years, but it's a great way to recycle woodstove ashes while benefiting the garden.
Additional information is available at the Clemson Coop Extension.
05-19-2006, 02:22 PM #2WatkinsGuest
Wowsers! What great tips Liss, thank you so much!
>Test your garden soil with cider vinegar. Add a couple drops to a soil sample- >if it Fizzes, the soil is Alkaline.
>To test soil acidity, wet your soil and add a tiny bit of baking Soda. If the mix fizzes, >the soil is acidic.
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