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Document Type

Factsheet

Publisher

Utah State University Extension

Publication Date

2-1-2001

Abstract

PH is a measure of the acidity or alkalinity of a substance. The range of pH for most soils is from 4 to 10 (Figure 1). The pH scale is logarithmic, meaning that a change in one numerical pH unit equals a 10-fold change in acidity or alkalinity.

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Horticulture Commons

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