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Old November 21, 2016   #3
PureHarvest
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Join Date: Mar 2014
Location: Mid-Atlantic right on the line of Zone 7a and 7b
Posts: 1,369
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The tests in the mid-atlantic region run the Melich 3. In different regions there are others. They are just like what this company says theirs does. It uses an acid solution to extract nutrients from the soil that mimics the soil solution in the rhizoshpere to predict what nutrients are available for plant growth. In other words, trying to mimic what is going on in the soil solution and interaction with plant root/acids.
So when I get a test done, it is showing me what nutrients are available that year for plant growth. Not what the total load is in the soil.

Last edited by PureHarvest; November 21, 2016 at 04:03 PM.
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