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dc.contributor.authorWatkins, Natalie Lisa
dc.contributor.authorSchipper, Louis A.
dc.contributor.authorSparling, Graham P.
dc.contributor.authorThorrold, Bruce
dc.contributor.authorBalks, Megan R.
dc.date.accessioned2013-04-11T23:22:19Z
dc.date.copyright2013-03
dc.date.issued2013
dc.identifier.citationWatkins, N., Schipper, L., Sparling, G., Thorrold, B., & Balks, M. (2013). Multiple small monthly doses of dicyandiamide (DCD) did not reduce denitrification in Waikato dairy pasture. New Zealand Journal of Agricultural Research, 56(1), 37-48.en_NZ
dc.identifier.issn0028-8233
dc.identifier.urihttps://hdl.handle.net/10289/7436
dc.description.abstractThe effectiveness of multiple small doses of the nitrification inhibitor dicyandiamide (DCD) to decrease denitrification under warm moist conditions was tested in a 1-year field trial on a grazed dairy pasture. DCD was applied approximately every 4 weeks as an aqueous spray onto ten replicate plots 3 days after rotational grazing by dairy cows. Each application was at the rate of 3 kg DCD ha⁻¹, with a total annual application of 33 kg ha⁻¹. Denitrification was assessed 5 days after each DCD application using the acetylene block method. At the end of the trial, the rate of degradation of DCD under summer conditions was measured. DCD significantly decreased the mean annual nitrate concentration by about 17%. Denitrification and denitrification enzyme activity were highly variable and no significant effect of DCD in decreasing denitrification was detected. In the summer month of December, DCD degraded rapidly with an estimated half-life of 5 ± 3 days (mean and standard deviation).en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherRoyal Society of New Zealanden_NZ
dc.relation.ispartofNew Zealand Journal of Agricultural Research
dc.rights© 2013, Royal Society of New Zealand. Used with permission.en_NZ
dc.subjectdenitrificationen_NZ
dc.subjectnitrous oxideen_NZ
dc.subjectpasturesen_NZ
dc.subjectcattle urineen_NZ
dc.subjectnitrification inhibitoren_NZ
dc.subjectDicyandiamide (DCD)en_NZ
dc.subjectNew Zealanden_NZ
dc.titleMultiple small monthly doses of dicyandiamide (DCD) did not reduce denitrification in Waikato dairy pastureen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1080/00288233.2012.736389en_NZ
dc.relation.isPartOfNew Zealand Journal of Agricultural Researchen_NZ
pubs.begin-page1en_NZ
pubs.elements-id38153
pubs.end-page12en_NZ
pubs.issue0028-8233en_NZ
pubs.volume0en_NZ


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