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importance of cation exchange capacity in soil fertility

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include analysis of Cation Exchange Capacity as part of OUr. Broad Spectrum Soil Analysis. We believe it provides important additional information for assessing soil fertility. Cations and Anions. Before explaining CEC, it is Useful to provide a general explanation of the behavioU? of nutrients in the soil. Plant. nUtrients exist
Cations and Anions. Before explaining CEC, it is useful to provide a general explanation of the behaviour of nutrients in the soil. Plant nutrients exist as particles called ions which carry an electrostatic charge. The positively charged nutrients are known as cations, and those with a negative charge are known as anions.
In this chapter we present standard methods for the extraction of the major cations and anions from soil, the measurement of exchangeable acidity and soil pH, and cation exchange capacity. Methods for the extraction of dissolved-only nutri- ents (those ions only in the solution phase as opposed to total exchangeable nutri-.
Dresden, 16.11.2017. Soil Chemistry: Adsorption, ion exchange, colloids. Karsten Kalbitz. Soil Resources and Land Use. Institute of Soil Science and Site Ecology
The CEC of soil directly affects the amount of fertilizer and the frequency with which fertilizer should be applied. Based on soil type, the percentage of organic matter in the soil, and the relative strength of positively and negatively charged nutrients in the soil, one can devise a sound soil treatment plan that accomplishes.

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February 2018