dc.contributor.author | Carlton, Anna | en |
dc.contributor.author | Cameron, Keith C. | en |
dc.contributor.author | Edwards, Grant | en |
dc.contributor.author | Di, Hong J. | en |
dc.contributor.author | Clough, Timothy J. | en |
dc.contributor.editor | Currie, L. D. | en |
dc.contributor.editor | Singh, R. | en |
dc.date.accessioned | 2020-05-21T22:56:01Z | |
dc.date.issued | 2016 | en |
dc.identifier.issn | 0112-9902 | en |
dc.identifier.uri | https://hdl.handle.net/10182/11908 | |
dc.description.abstract | Nitrate (NO₃⁻) leaching, associated with urine nitrogen (N) deposition during grazing is recognised as a significant environmental problem. In this study it was hypothesised that optimum irrigation could increase plant growth and uptake of urine-N deposited, thereby reducing NO₃⁻ leaching over winter. The objective of this research was therefore to determine the effect of optimum vs. deficit irrigation regimes on N uptake and dry matter yields from diverse and standard pasture species and their effects on annual NO₃⁻ leaching losses from soil.
In this study ruminant urine was applied at two rates of N, 500 and 700 kg N ha⁻¹, to soil monolith lysimeters in late spring. Urine was labelled with ¹⁵N stable isotope at 5 atom% prior to application. Irrigation water was applied at optimum vs. deficit rates. Measurements of NO₃⁻ leaching, ¹⁵N abundance and pasture N uptake were undertaken for a 10 month period following urine application. | en |
dc.format.extent | 4 | en |
dc.language.iso | en | en |
dc.publisher | Fertilizer and Lime Research Centre, Massey University | en |
dc.relation | The original publication is available from - Fertilizer and Lime Research Centre, Massey University - http://flrc.massey.ac.nz/workshops/16/paperlist16.htm | en |
dc.rights | © The Authors and FLRC | en |
dc.source | 29th Annual FLRC Workshop: Integrated Nutrient and Water Management for Sustainable Farming | en |
dc.subject | nitrate (NO₃⁻) | en |
dc.subject | nitrate leaching | en |
dc.subject | ruminant urine | en |
dc.subject | ¹⁵N stable isotope | en |
dc.subject | pasture N | en |
dc.subject | irrigation | en |
dc.title | The effect of optimum vs deficit irrigation on plant nitrogen uptake and nitrate leaching loss from soil | en |
dc.type | Conference Contribution - Published | |
lu.contributor.unit | Lincoln University | en |
lu.contributor.unit | Faculty of Agriculture and Life Sciences | en |
lu.contributor.unit | Department of Soil and Physical Sciences | en |
lu.contributor.unit | Vice Chancellor's Office | en |
dc.subject.anzsrc | 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.) | en |
dc.subject.anzsrc | 079902 Fertilisers and Agrochemicals (incl. Application) | en |
dc.subject.anzsrc | 0703 Crop and Pasture Production | en |
dc.subject.anzsrc | 0702 Animal Production | en |
dc.subject.anzsrc | 070101 Agricultural Land Management | en |
dc.relation.isPartOf | Integrated nutrient and water management for sustainable farming: Occasional Report No. 29 | en |
pubs.finish-date | 2016-02-11 | 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.organisational-group | /LU/Vice Chancellor's Office | |
pubs.publication-status | Published | en |
pubs.publisher-url | http://flrc.massey.ac.nz/workshops/16/paperlist16.htm | en |
pubs.start-date | 2016-02-09 | en |
dc.publisher.place | Palmerston North, New Zealand | en |
dc.identifier.eissn | 2230-3944 | en |
lu.identifier.orcid | 0000-0002-7631-1636 | |
lu.identifier.orcid | 0000-0003-4165-007X | |
lu.identifier.orcid | 0000-0002-6966-0299 | |
lu.identifier.orcid | 0000-0002-5978-5274 | |
lu.subtype | Conference Paper | en |