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dc.contributor.authorSimmonds, Bernarden
dc.contributor.authorMcDowell, Richarden
dc.contributor.authorCondron, Leo M.en
dc.contributor.editorCurrie, L. D.en
dc.contributor.editorChristensen, C. L.en
dc.date.accessioned2020-03-08T20:47:56Z
dc.date.available2013en
dc.date.created2013-02-13en
dc.date.issued2013en
dc.identifier.citationSimmonds, B., McDowell, R., & Condron, L. (2013). Preliminary study of the potential for phosphorus loss with the development of organic soils. In L.D. Currie and C.L. Christensen (Eds.), Accurate and efficient use of nutrients on farms: Occasional Report No. 26. Fertilizer and Lime Research Centre, Massey University, Palmerston North, New Zealand. Retrieved from https://www.massey.ac.nz/~flrc/workshops/13/Manuscripts/Paper_Simmonds_2013.pdfen
dc.identifier.issn0112-9902en
dc.identifier.urihttps://hdl.handle.net/10182/11541
dc.description.abstractOrganic Soils (organic matter concentration > 30%) cover 200,000 ha in New Zealand, of which around 67,000 ha have been converted for intensive land use (viz. dairy). However, Organic Soils have a number of properties that can exacerbate P losses including: high porosity and hydraulic conductivities and poor P retention, otherwise known as anion storage capacity (ASC). Studies have indicated that the physio-chemical properties of Organic Soils change quickly after initial development. However, the rate at which properties change and their influence on P loss is not well established. We hypothesized that Organic Soils have a potential to lose more P than other soil orders in the same region, and that the rate of P loss changes with time since development due to changes in soil properties. Ninety three paddocks were sampled containing approximately equal numbers of soils from the Organic, Gley and Podzol Soil orders in a coastal Southland catchment. Water extractable P (WEP), as an indicator for potential P loss in surface runoff, increased in soils with low ASC and/or high Olsen P concentration. Many of these soils were Organic Soils that had only recently been put into production. In contrast to Gleys and Podzols, the WEP concentration in Organic Soils quickly decreased with time since development to reach a near steady state after approximately 25 years. A mass balance confirmed that Organic Soils had lost more P than other soil orders, but also suggested that this decreased with time. The results of this study indicate that P losses from Organic Soils are potentially large but decrease with time since development and that using strategies to mitigate P loss is especially important within the first 25 years of development.en
dc.format.extent6en
dc.language.isoenen
dc.publisherFertilizer and Lime Research Centreen
dc.relationThe original publication is available from - Fertilizer and Lime Research Centre - https://www.massey.ac.nz/~flrc/workshops/13/paperlist13.htmen
dc.rights© The Authors and FLRC, 2013en
dc.source26th Annual FLRC Workshop: Accurate and Efficient Use of Nutrients on Farmsen
dc.subjectorganic soilsen
dc.subjectphosphorus lossen
dc.subjectsoil phosphorusen
dc.subjectsoil mineralsen
dc.titlePreliminary study of the potential for phosphorus loss with the development of organic soilsen
dc.typeConference Contribution - Published
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
dc.subject.anzsrc0503 Soil Sciencesen
dc.subject.anzsrc079902 Fertilisers and Agrochemicals (incl. Application)en
dc.relation.isPartOfAccurate and efficient use of nutrients on farms: Occasional Report No. 26en
pubs.finish-date2013-02-14en
pubs.organisational-group/LU
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/QE18
pubs.publication-statusPublished onlineen
pubs.publisher-urlhttps://www.massey.ac.nz/~flrc/workshops/13/paperlist13.htmen
pubs.start-date2013-02-12en
dc.publisher.placeMassey Universityen
dc.identifier.eissn2230-3944en
lu.identifier.orcid0000-0002-3082-994X
lu.identifier.orcid0000-0003-3911-4825
lu.subtypeConference Paperen


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