Soil pH is defined as the negative logarithm of the hydrogen ion concentration. The pH scale goes from 0 to 14 with pH 7 as the neutral point. As the amount of hydrogen ions in the soil increases the ...

Small changes in pH reflect significant shifts in acidity or alkalinity due to the exponential nature of the scale.

When talking about how to plant and how to grow plants in the garden, one of the things that comes up repeatedly is the importance of your soil’s level of acidity. And that level is measured in pH.

CEC is the ability of soil to hold and exchange cations (positively charged nutrients). Higher CEC means better nutrient ...

They might show up as slightly acidic or slightly alkaline because of this. The pH scale measures how strongly acidic or alkaline a solution is using a set of values from pH 0 to pH 14.