Kationinvaihtokapasiteetin määritys ja käyttö viljavuusanalyysin tulkinnassa

Translated title of the contribution: Interpreting soil analysis results with cation exchange capacity

Tuomas J Mattila, Jukka Aaro Rajala

Research output: Book/ReportCommissioned reportProfessional

Abstract

Cation exchange capacity (CEC) is a measure of the soil’s ability to store positively charged nutrients (cations) in a plant available (exchangeable) form. The amount of clay and organic matter influence the CEC of a specific soil and CEC can be used as a measure of the overall fertility potential of a soil. In addition CEC has been used to interpret concentrations of Ca, Mg, K and Na in relation to the overall CEC of the soil. This presents a more detailed interpretation of soil analysis than interpretation which is based on soil type classifications, but it also requires the estimation of CEC. 24 test fields were used as a test case for comparing different methods of measuring or estimating CEC. Example fields are used to demonstrate the use of CEC in making soil management recommendations and the scientific literature on using CEC as a basis for fertilizer recommendations is reviewed.
Translated title of the contributionInterpreting soil analysis results with cation exchange capacity
Original languageFinnish
Place of PublicationMikkeli
PublisherRuralia-instituutti
Number of pages36
ISBN (Electronic)978-951-51-3756-2
Publication statusPublished - 2018
MoE publication typeD4 Published development or research report or study

Publication series

NameRaportteja
PublisherHelsingin yliopisto Ruralia-instituutti
No.179
ISSN (Electronic)1796-0630

Fields of Science

  • 4111 Agronomy

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