AMMONIUM RETENTION IN SAND AMENDED WITH CLINOPTILOLITE.

G. A. Ferguson, I. L. Pepper

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

Clinoptilolite zeolite has a rigid three-dimensional lattice with 10** minus **9 m sized tunnels, and an affinity for NH** plus //4 on its internal exchange sites. These internal tunnels are too small for 10** minus **6 m size microbes to access; hence, clinoptilolite has the potential to physically protect NH** plus //4 from nitrification by microbes, and may reduce volatilization losses. The objective of this study was to evaluate NH** plus //4 retention of sand amended with clinoptilolite. Retention of NH** plus //4 on clinoptilolite amended sands incubated at 20% volumetric water content, was studied in the laboratory. Clinoptilolite reduced NH** plus //4 losses from the soil mix and would allow increased plant N fertilizer-use efficiency. Thus clinoptilolite-amended sands have potential as a growth medium for turfgrasses on golf greens, where N use efficiency is typically low.

Original languageEnglish (US)
Pages (from-to)231-234
Number of pages4
JournalSoil Science Society of America Journal
Volume51
Issue number1
DOIs
StatePublished - Jan 1 1987

ASJC Scopus subject areas

  • Soil Science

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