Zeolite from alkali modified kaolin increases NH4+ retention by sandy soil: Column experiments
Source abstract
Abstract
Abstract Sandy soils have low water and nutrient retention capabilities so that zeolite soil amendments are used for high value land uses including turf and horticulture to reduce leaching losses of NH 4 + fertilisers. MesoLite is a zeolitic material made by caustic treatment of kaolin at 80–95 °C. It has a moderately low surface area (9–12 m 2 /g) and very high cation exchange capacity (494 cmol(+)/kg). Laboratory column experiments showed that an addition of 0.4% MesoLite to a sandy soil greatly (90%) reduced leaching of added NH 4 + compared to an unamended soil and MesoLite is 11 times more efficient in retaining NH 4 + than natural zeolite. Furthermore, NH 4 -MesoLite slowly releases NH 4 + to soil solution and is likely to be an effective slow release fertiliser.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Clay minerals and soil interactions · Soil and Unsaturated Flow · Groundwater and Isotope Geochemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
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