Effects of soil pH

NUTRIENT AVAILABILITY

  • Controls the availability of the essential nutrients
  • Availability of nitrogen, phosphorus, sulfur, calcium, magnesium, sodium, and molybdenum is limited under acidic conditions
The effect of soil pH on the availability of essential plant elements
Figure 4. The effect of soil pH on the availability of essential plant elements. Greater nutrient availability is indicated by thickened lines, whereas narrow lines indicate a decrease in availability.

BIOLOGICAL ACTIVITY AND PROCESSES

  • Determines the abundance of soil microorganism
  • Determines which plant species will grow
  • Low soil pH slows the biological transformation of ammonium to nitrate

PHYSICALLY

  • Indirectly, high pH can disrupt soil structure, or aggregation.

Related Posts:

  • Soil Mineralogy Soil Mineralogy Soil mineralogy is closely related to soil fertility. Differences in soil mineralogy cause great differences in soil fertility. For instance, moderately weathered clays attract and retain greater amounts of… Read More
  • Soil structure & aggreagates Soil Structure Soil structure is the arrangement of soil particles into groupings. These groupings are called peds or aggregates, which often form distinctive shapes typically found within certain soil horizons. For exampl… Read More
  • Silicate clays of soila Layered Silicate clays Layered silicate clays are secondary minerals that have formed as the result of weathering of parent material. There are two major categories of layered silicate clays within the soil: high activity … Read More
  • Cation Exchange Capacity (CEC) and Anion Exchange Capacity (AEC) of soil CEC AND LESS WEATHERED SOILS OF HAWAII Less weathered soils, that contain minerals such as montmorillonite, are said to have a ‘cation exchange capacity,’ or CEC, under acidic, neutral, and alkaline conditions. CEC is th… Read More
  • Soil Texture Soil Texture Soil texture has an important role in nutrient management because it influences nutrient retention. For instance, finer textured soils tend to have greater ability to store soil nutrients. In our discussion o… Read More

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