Show simple item record

dc.contributor.authorCarey, Peter
dc.contributor.authorCameron, Keith C.
dc.contributor.authorDi, Hong J.
dc.contributor.authorRoberts, A. H. C.
dc.contributor.editorChristenson, C. L.en
dc.contributor.editorCurrie, L. D.en
dc.date.accessioned2020-03-06T01:19:52Z
dc.date.issued2014
dc.identifier.issn0112-9902en
dc.identifier.urihttps://hdl.handle.net/10182/11540
dc.description.abstractA cut-and-carry trial was conducted on a low Quick-test potassium (QTK ≤ 4) Lismore soil during 2012-13 in Springston, Canterbury to test the responsiveness of a dairy pasture to urine, dicyandiamide (DCD) and potassium (K) applications. Over the full year the applications of urine-only, urine+K, urine+DCD, and urine+DCD+K increased pasture production significantly over the non-urine control treatment by 23%, 29%, 36% and 42%, respectively. Applications of K, DCD and DCD+K increased production over the urine-only treatments by 5%, 10% and 15%, respectively, for both spring and full-year totals. There were no significant increases to K or DCD applications for non-urine treatments. The pasture responses to K and DCD applications were attributed to maintaining better balanced plant nutrition, rather than to soil K deficiency per se, as urine application maintained QTK levels to recommended values (QTK ~6) for the duration of the trial. However, K deficiency may still have occurred at times of high demand where K uptake was restricted by the shallow soil depth. Although these differences were considered to have their roots, at least partly, in K nutrition, it may also reflect differences that are particular to cut-and-carry trial management and measurement. Continual harvesting of dry matter (DM) reduces K availability quickly in some soils even after large initial K applications in urine (>800 kg K/ha). The findings of this cut-and-carry trial show that regular K application can influence pasture DM responses to the urine-nitrogen retained in soil, and to the use of a nitrification inhibitor, and not just when soil K levels are low.en
dc.format.extent11en
dc.language.isoen
dc.publisherFertiliser and Lime Research Centre
dc.relationThe original publication is available from - Fertiliser and Lime Research Centre - http://flrc.massey.ac.nz/publications.htmlen
dc.rights© FLRC and the Authors
dc.source27th Annual FLRC Workshop: Nutrient Management for the Farm, Catchment and Communityen
dc.subjectnitrogen intakeen
dc.subjectnutrient interactionen
dc.subjectnitrification inhibitoren
dc.subjectdry-matter responseen
dc.subjectpotassium uptakeen
dc.titleEffect of urine, potassium and dicyandiamide (DCD) application on pasture production from a free-draining Canterbury dairy pasture soilen
dc.typeConference Contribution - published
lu.contributor.unitLincoln University
lu.contributor.unitFaculty of Agriculture and Life Sciences
lu.contributor.unitDepartment of Soil and Physical Sciences
lu.contributor.unitLincoln Agritech
dc.subject.anzsrc079902 Fertilisers and Agrochemicals (incl. Application)en
dc.subject.anzsrc0703 Crop and Pasture Productionen
dc.subject.anzsrc0702 Animal Productionen
dc.relation.isPartOfNutrient management for the farm, catchment and community: Occasional Report No. 27en
pubs.finish-date2014-02-20en
pubs.notesOccasional Report No. 27en
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/Lincoln Agritech
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18
pubs.publication-statusPublished onlineen
pubs.publisher-urlhttp://flrc.massey.ac.nz/publications.htmlen
pubs.start-date2014-02-18en
dc.publisher.placeMassey University, New Zealanden
dc.identifier.eissn2230-3944en
lu.identifier.orcid0000-0002-2301-2528
lu.identifier.orcid0000-0002-7631-1636
lu.identifier.orcid0000-0002-6966-0299
lu.subtypeConference Paperen


Files in this item

Default Thumbnail

This item appears in the following Collection(s)

Show simple item record