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Ammonium and potassium exchange in acid tropical soil


Syed Rastan, Syed Omar and I., Zubaidah and Jusop, Shamshuddin and Mohd Hanif, Ahmad Husni (2001) Ammonium and potassium exchange in acid tropical soil. Malaysian Journal of Soil Science, 5. pp. 59-70. ISSN 1394-7990


High precipitation and low soil cation exchange capacity (CEC) of highly weathered acidic tropical soils require large amounts and many rounds of fertilization to increase the potential of these soils from leaching losses of soil ammonium (NH4+) and potassium (K+). This study was conducted to evaluate the exchange properties of natural and synthetic zeolites on soil NH4+ and K+. A Bungor Series soil (Typic Paluedults) was taken from a depth of 0 to 5 cm for this leaching experiment. Each soil treatment was added either with equal amounts of NH4+ or K+ and treated with and without zeolites. The treated soil was then leached with deionised water for 20 days and the soil leachate was collected at 5­day interval, to analyze for NH4+ and K+ concentration. The results of this study showed that all types of zeolites were able to reduce substantial leaching losses of soil NH4+ and K+. The natural zeolites were better than the synthetic zeolites in retaining these cations. The study has demonstrated that zeolites could be used as an effective soil amendment to reduce leaching losses of soil NH4+ and K+ in acid tropical soils with low CEC.

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Official URL or Download Paper: http://www.msss.com.my/mjss/abs05.htm

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Malaysian Society of Soil Science
Keywords: Zeolites; Clinoptilolite; Acid soil; Ammonium; Potassium
Depositing User: Nabilah Mustapa
Date Deposited: 30 Dec 2016 03:53
Last Modified: 30 Dec 2016 03:53
URI: http://psasir.upm.edu.my/id/eprint/49586
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