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Learn how cation-exchange capacity (CEC) measures how many cations can be retained on soil particle surfaces and how it affects soil chemistry and fertility. Find out the factors that influence CEC, such as soil pH, organic matter, clay minerals and base saturation.
The cation exchange capacity (CEC) is a measure of the ability of the growing medium to adsorb exchangeable cations which are available to the plant and will resist the leaching of nutrients during watering.
Learn what CEC is, how it is measured, and why it is important for soil fertility and plant nutrition. CEC is the capacity of soil to hold on to cations such as calcium, magnesium, potassium, and hydrogen, and it depends on soil pH and clay and organic matter content.
Learn about cation exchange capacity (CEC), the soil's ability to hold positively charged ions, and how it affects soil structure, nutrient availability, pH and fertility. Find out how to measure CEC, what factors influence it, and how to manage it for different soil types.
3 Ιουν 2010 · The cation exchange capacity of shale is a measure of the exchangeable cation present in the clay minerals of the shale sample. The most commonly available cations include sodium, potassium, calcium, iron, and magnesium.
This article explains the theoretical and practical aspects of measuring cation exchange capacity (CEC) in soils, which is an indicator of their physicochemical state and agronomic value. It also discusses the factors that influence CEC, such as pH, ionic strength, nature of cations and anions, and methods of extraction and calculation.
18 Μαΐ 2024 · Learn how to estimate the cation exchange capacity (CEC) of different soils by filtering them with KCl and distilled water and testing for calcium. CEC is a proxy of soil fertility and nutrient retention, influenced by clay, humus, and pH.
