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dc.contributor.authorCameron, Keith C.en
dc.contributor.authorDi, Hong J.en
dc.contributor.authorMoir, James L.en
dc.contributor.authorRoberts, A. H. C.en
dc.date.accessioned2008-08-07T22:26:29Z
dc.date.issued2007-11en
dc.identifier.urihttps://hdl.handle.net/10182/577
dc.description.abstractThe decline in water quality in Lake Taupo has been attributed to nitrogen (N) leaching from surrounding land areas. Pastoral agriculture has been identified as a significant contributor to this N transfer to the lake through animal urine deposition. There is therefore an immediate need for new management options to reduce N losses. The objective of this study was to measure the effectiveness of using a nitrification inhibitor (eco-n) to reduce nitrate leaching losses from a pasture soil of the Taupo region. A 3-year study was conducted using twenty lysimeters on Landcorp's 'Waihora' sheep and beef farm, within 10 km of Lake Taupo. The results show that animal urine patches were the main source of nitrate leaching (>95% of the total annual loss) and that eco-n significantly (P<0.05) reduced nitrate leaching losses from urine treated lysimeters. When the lysimeter results were combined with a detailed GPS survey and GIS analysis of urine patch coverage of the farm it is concluded that eco-n reduced annual nitrate leaching losses by between 23 and 32%, with an average reduction of 27%. Thus eco-n represents a practical technology that pastoral farmers could adopt today, to assist them to meet new water quality standards in sensitive catchments near Lake Taupo and the upper Waikato River.en
dc.language.isoenen
dc.publisherNew Zealand Grassland Associationen
dc.relationThe original publication is available from - New Zealand Grassland Associationen
dc.rightsCopyright © The Authors and New Zealand Grassland Association Inc.en
dc.source69th conference of the New Zealand Grassland Associationen
dc.subjectnitrateen
dc.subjecturine patchen
dc.subjectnitrification inhibitoren
dc.subjecteco-nen
dc.titleReducing nitrate leaching losses from a Taupo pumice soil using a nitrification inhibitor eco-nen
dc.typeConference Contribution - Published
dc.subject.marsdenFields of Research::300000 Agricultural, Veterinary and Environmental Sciences::300100 Soil and Water Sciences::300103 Soil chemistryen
dc.subject.marsdenFields of Research::300000 Agricultural, Veterinary and Environmental Sciences::300800 Environmental Scienceen
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
pubs.finish-date2007-11-15en
pubs.notesPaper presented at the 69th conference of the New Zealand Grassland Association, Wairakei, New Zealand, 13-15 November 2007.en
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-statusPublisheden
pubs.start-date2007-11-13en
lu.identifier.orcid0000-0002-7631-1636
lu.identifier.orcid0000-0002-6966-0299
lu.identifier.orcid0000-0001-6677-3901
lu.subtypeConference Paperen


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