K from zeolite : glasshouse trial for testing K availability to the plants

Zwingmann, Naoko, Gilkes, Robert J., & Mackinnon, Ian D.R. (2010) K from zeolite : glasshouse trial for testing K availability to the plants. In Gilkes, Robert J. & Prakongep, N. (Eds.) Soil Solutions for a Changing World, International Union of Soil Sciences, Brisbane, Australia, pp. 198-201.

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Abstract

MesoLite, a zeolite material manufactured by NanoChem Holdings Pty Ltd is made by caustic reaction of kaolin at temperatures between 80-95°C. This material has a moderate surface area (9~12 m2/g) and very high cation exchange capacity (500meq/100g). To measure the availability of K in K-MesoLite to plants, wheat was grown with K-MesoLite or a soluble fertiliser (e.g. KCl) in non-leached pots in a glasshouse. The weights and elemental compositions of the plants were compared after four weeks growth. Plants grown with K-MesoLite were slightly larger than those grown with KCl. The elemental compositions of the plants were similar except for Si, which was significantly higher in the plants grown with K-MesoLite than in those fertilised with KCl. K from K-MesoLite is readily available to plants.

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ID Code: 58031
Item Type: Conference Paper
Refereed: Yes
Keywords: zeolite, alkali modified kaolin, K-fertiliser, glasshouse experiment, wheat crops
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Mineralogy and Crystallography (040306)
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > CROP AND PASTURE PRODUCTION (070300) > Crop and Pasture Nutrition (070306)
Divisions: Current > Institutes > Institute for Future Environments
Copyright Owner: Copyright 2010 (please consult the authors).
Deposited On: 11 Mar 2013 02:51
Last Modified: 11 Mar 2013 02:51

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