Roots acidify the soil solution by releasing is CO² ; pH.
A soil's acidity or basicity (alkalinity) is determined by its pH. A key property, soil pH, can be used to undertake relevant analyses of soil characteristics on both a qualitative and quantitative level.
- Soil pH is considered a master variable in soils as it affects many chemical processes
- By regulating the chemical forms of the various nutrients and altering the chemical reactions they go through, it directly influences the availability of nutrients to plants.
- Although most plants prefer a pH range of between 5.5 and 7.5 several plants have evolved to grow at pH levels outside of this range.
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