Farm

Northeast Research and Demonstration Farm

Extension Number

RFR A14101

Publication Date

1-1-2015

Abstract

Soil pH is one of the most important soil characteristics of crop production. The pH is the negative logarithm of the hydrogen ion activity of a soil. For each unit increase in pH, there is a 10 times change in acidity. A pH of 5 is 10 times more acid than a pH of 6, and 100 times more acid than a pH of 7. A soil pH greater than 7 is called alkaline or basic. A soil pH less than 7 is called acidic.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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