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dc.contributor.authorMamun, Shamim Alen
dc.contributor.authorLehto, Niklasen
dc.contributor.authorCavanagh, J.en
dc.contributor.authorMcDowell, Richarden
dc.contributor.authorAktar, M.en
dc.contributor.authorBenyas, E.en
dc.contributor.authorRobinson, Bretten
dc.identifier.citationMamun, S.A., Lehto, N.J., Cavanagh, J., McDowell, R., Aktar, M., Benyas, E., & Robinson, B.H. (2017). Effects of lime and organic amendments derived from varied source materials on cadmium uptake by potato. Journal of Environmental Quality, 46(4), 836-844. doi:10.2134/jeq2017.02.0059en
dc.description.abstractRepeated applications of Cd-rich phosphate fertilizers have resulted in elevated concentrations of this toxic element in some New Zealand soils. Exceedance of the food safety standard for Cd (0.1 mg kg⁻¹ fresh weight) has been reported for potato (Solanum tuberosum L.). Composts may efficiently sorb Cd in soil and therefore reduce its phytoavailability, leading to reduced uptake by plants. We aimed to determine the potential of various composts, shredded corn stover, and lime at two different rates to reduce the transfer of Cd from a soil (containing 1.45 mg kg⁻¹ Cd) to potato (var. 'Nadine'). In the control, the peeled tubers, skins, leaves, and stems had Cd concentrations of 0.04, 0.09, 0.26, and 0.53 mg kg⁻¹ dry weight, respectively. There was a 71% reduction in tuber Cd concentrations in potatoes grown in soil amended with 5% (w/w) shredded corn stover, although it significantly decreased potato biomass. Potatoes grown in soil amended with pig manure compost, mushroom compost, sawdust-animal waste compost, and municipal compost at rates of either 2.5 or 5% (w/w) reduced tuber Cd concentrations by 58 to 66%, 46 to 63%, 52 to 53%, and 29 to 49%, respectively. Lime (1.3%) application in soil reduced tuber Cd concentrations by 50%. Composts significantly increased tuber biomass. Further work is warranted to identify the key components of composts that result in reduced Cd uptake by plants.en
dc.publisherAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.en
dc.relationThe original publication is available from - American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc. -
dc.rights© American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. 5585 Guilford Rd., Madison, WI 53711 USA. All rights reserved. This is an open access article distributed under the terms of the CC BY-NC-ND license (
dc.subjectAgronomy & Agricultureen
dc.subject.meshCalcium Compoundsen
dc.subject.meshSoil Pollutantsen
dc.subject.meshSolanum tuberosumen
dc.titleEffects of lime and organic amendments derived from varied source materials on cadmium uptake by potatoen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
dc.subject.anzsrc079902 Fertilisers and Agrochemicals (incl. Application)en
dc.subject.anzsrc0503 Soil Sciencesen
dc.subject.anzsrc050304 Soil Chemistry (excl. Carbon Sequestration Science)en
dc.subject.anzsrc050305 Soil Physicsen
dc.subject.anzsrc04 Earth Sciencesen
dc.subject.anzsrc05 Environmental Sciencesen
dc.subject.anzsrc06 Biological Sciencesen
dc.relation.isPartOfJournal of Environmental Qualityen
pubs.notesJournal subtitle: Trace Elements in the Environmenten
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/SOILS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/PE20
pubs.organisational-group/LU/Research Management Office/QE18

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