Nitrate leaching mitigation options in two dairy pastoral soils and climatic conditions in New Zealand

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dc.citation.issue18
dc.citation.volume11
dc.contributor.authorMatse DT
dc.contributor.authorJeyakumar P
dc.contributor.authorBishop P
dc.contributor.authorAnderson CWN
dc.coverage.spatialSwitzerland
dc.date.available2022-09-17
dc.date.available2022-09-14
dc.date.issued2022-09-17
dc.description.abstractThis lysimeter study investigated the effect of late-autumn application of dicyandiamide (DCD), co-poly acrylic-maleic acid (PA-MA), calcium lignosulphonate (LS), a split-application of calcium lignosulphonate (2LS), and a combination of gibberellic acid (GA) and LS (GA + LS) to reduce N leaching losses during May 2020 to December 2020 in lysimeter field sites in Manawatu (Orthic Pumice soil) and Canterbury (Pallic Orthic Brown soil), New Zealand. In a second application, urine-only, GA only and GA + LS treatments were applied during July 2020 in mid-winter on both sites. Results showed that late-autumn application of DCD, 2LS and GA + LS reduced mineral N leaching by 8%, 16%, and 35% in the Manawatu site and by 34%, 11%, and 35% in the Canterbury site, respectively when compared to urine-only. There was no significant increase in cumulative herbage N uptake and yield between urine-treated lysimeters in both sites. Mid-winter application of GA and GA + LS reduced mineral N leaching by 23% and 20%, respectively in the Manawatu site relative to urine-only treated lysimeters, but no significant reduction was observed in the Canterbury site. Our results demonstrated the potential application of these treatments in different soils under different climate and management conditions.
dc.description.publication-statusPublished online
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/36145831
dc.identifierplants11182430
dc.identifier.citationPlants (Basel), 2022, 11 (18)
dc.identifier.doi10.3390/plants11182430
dc.identifier.elements-id456866
dc.identifier.harvestedMassey_Dark
dc.identifier.issn2223-7747
dc.languageeng
dc.publisherMDPI (Basel, Switzerland)
dc.relation.isPartOfPlants (Basel)
dc.rightsCC BY
dc.subjectgibberellic acid
dc.subjectnitrate leaching
dc.subjectorganic inhibitors
dc.subjecturine patches
dc.titleNitrate leaching mitigation options in two dairy pastoral soils and climatic conditions in New Zealand
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Agriculture & Environment
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