Perform your soil test by placing a sample into two separate cups or containers. Add vinegar to one. If it fizzes your soil is alkaline. If not, add some water to the second cup and stir. Add baking soda. If it fizzes you have acidic soil. If neither have a reaction your soil is somewhat pH balanced.
From the Gardening Cook-10 Ways to Use Baking Soda in the Garden -who knows baking soda is a great garden aid? Here are a few tips: *Use it as a natural fungicide *As garden grime buster *Use it for powdery mildew *Rejuvenate your rose bushes *Use it as weed killer/preventer *Kill cabbage worms *Sweeten your tomatoes *Kill crabgrass *Test your soil PH *Discourage pests in the garden