how can you test a sample of soil for acidity or alkalinity
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Scoop some soil into a container. Then, add 1/2 cup of vinegar. If the soil bubbles or fizzes, it's alkaline. ...
If no reaction occurs, scoop a fresh soil sample into a second container. Add half a cup of water, and mix. Then, add 1/2 cup of baking soda.
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you can find it on Google
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