Freeze-thaw cycling, moisture and leaching from a Controlled Release Nutrient source

D. B. Gore*, I. Snape

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Controlled Release Nutrient sources assist in the bioremediation of hydrocarbon spills by stimulating microbial activity. However, freeze-thaw activity might result in splitting of fertilizer pellets with the uncontrolled release of nutrients. We examined the role of freeze-thaw and three moisture levels on nutrient release from MaxBac®, a nitrogen and phosphorus-based fertilizer encapsulated by an organic resin. We found that moisture alone accounts for most of the nutrient release, while freeze-thaw creates only a minor enhancement of nutrient release. This Controlled Release Nutrient source appears to be suitable for use in areas of freezing ground.

Original languageEnglish
Pages (from-to)401-407
Number of pages7
JournalCold Regions Science and Technology
Volume52
Issue number3
DOIs
Publication statusPublished - May 2008

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