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dc.contributor.authorBeale, Nigel
dc.contributor.authorTalbot, William
dc.contributor.authorCameron, Keith
dc.contributor.authorDi, Hong
dc.contributor.authorNarbey, R
dc.date.accessioned2021-10-05T00:48:03Z
dc.date.available2021-09-26
dc.date.issued2021-09-26
dc.date.submitted2021-09-02
dc.identifier.issn0028-8233
dc.identifier.urihttps://hdl.handle.net/10182/14264
dc.description.abstractNitrate (NO₃‾) leaching losses from lysimeters on a dairy farm were measured using an automated monitoring system designed to reduce labour and analysis costs. Nitrate leaching losses were measured under two soil types on farm (moderately deep and moderately shallow, stony silt loam) and under both urine patches and non-urine areas. The moderately deep soil leached significantly less NO₃‾-N than the relatively shallow soil in the 2016–17, 2017–18 and 2019–20 seasons. The NO₃‾-N leaching losses, under urine patches, were higher in autumn (168.5–190.1 kg NO₃‾-N ha‾¹) than in spring (3.7–4.9 kg NO₃‾-N ha‾¹) and summer (28.2–35.1 kg NO₃‾-N ha‾¹). Paddock scale NO₃‾ leaching losses were calculated using a semi-empirical model. The calculated NO₃‾-N leaching losses ranged from 18.3 to 47.3 kg NO₃‾-N ha‾¹ year‾¹, with a mean loss of 30.7 kg NO₃‾-N ha‾¹ year‾¹. These relatively low leaching losses from free-draining dairy pasture soils may be due to the recent conversion from forestry to dairy, with the soil having a high soil C:N ratio that may have caused increased immobilisation and subsequently lower NO₃‾-N leaching loss.
dc.format.extent19 pages
dc.languageen
dc.language.isoen
dc.publisherTaylor & Francis on behalf of The Royal Society of New Zealand
dc.relationThe original publication is available from Taylor & Francis on behalf of The Royal Society of New Zealand - https://doi.org/10.1080/00288233.2021.1977661
dc.relation.urihttps://doi.org/10.1080/00288233.2021.1977661
dc.rights© 2021 The Royal Society of New Zealand
dc.subjectnitrogen
dc.subjectstony soil
dc.subjectautomatic monitoring system
dc.subjectC:N ratio
dc.subjectUV-visisble spectrolyser
dc.titleMeasurement of nitrate leaching losses from lysimeters on a dairy farm following conversion from forestry
dc.typeJournal Article
lu.contributor.unitLincoln University
lu.contributor.unitFaculty of Agriculture and Life Sciences
lu.contributor.unitDepartment of Soil and Physical Sciences
dc.identifier.doi10.1080/00288233.2021.1977661
dc.relation.isPartOfNew Zealand Journal of Agricultural Research
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
dc.identifier.eissn1175-8775
lu.identifier.orcid0000-0002-7631-1636
lu.identifier.orcid0000-0002-6966-0299


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