2024年3月6日 · Soil acidity is a fundamental soil property that significantly influences nutrient availability, plant growth, and overall ecosystem health. It is the result of various interacting natural and anthropogenic factors.

Low pH or soil acidity affects nutrient availability, microbial activity as well as plant growth. This publication covers a definition of soil acidity, causes of soil acidity, effect on soil nutrients and crops, and how to identify this issue.

Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics.

Soil acidity consists of acid cations, hydrogen (H+), aluminum (Al3+), and in some soils, manganese (Mn2+). These acids are neutralized by basic anions, carbonate (CO3 2-), hydroxyl (OH-), and oxide (O2-) provided by materials like agricultural, hydrated/slaked, and quick/burnt limes, respectively.

In central and western Oklahoma, the soils are not naturally acidic but have become acidic overtime. This fact sheet explains why soils become acidic and the problems acid soils create for plant growth.

2024年8月7日 · Acidic soil has a pH level of less than 6.5 (a reading of 5.5 means the soil is very acidic). The ideal pH range for most plants is 7, which is considered neutral. Readings over 7 or 7.5 indicate alkalinity. Acidic soil can be helpful in the garden when you have plants that prefer it.

Soil Acidity Key Points. Soil pH is a measure of the concentration of hydrogen ions in the soil solution. The lower the pH of soil, the greater the acidity. pH should be maintained at above 5.5 in the topsoil and 4.8 in the subsurface.

Soil chemical health is strongly related to soil acidity. This acidity consists of acidic cations, hydrogen (H+), aluminum (Al3+), and in some soils, manganese (Mn2+).