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https://hdl.handle.net/2440/73841
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dc.contributor.author | McBeath, T. | - |
dc.contributor.author | McLaughlin, M. | - |
dc.contributor.author | Kirby, J. | - |
dc.contributor.author | Armstrong, R. | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | Plant and Soil: international journal on plant-soil relationships, 2012; 358(1-2):337-348 | - |
dc.identifier.issn | 0032-079X | - |
dc.identifier.issn | 1573-5036 | - |
dc.identifier.uri | http://hdl.handle.net/2440/73841 | - |
dc.description.abstract | Background and aims Crop phosphorus (P) content is controlled by P uptake from both banded P fertiliser and from P throughout the soil profile. These P supply factors are in turn controlled by soil, climatic and plant factors. The aim of this experiment was to measure the contribution of fertiliser, topsoil and subsoil P to wheat plants under wet and dry growing season conditions. Methods An isotopic tracer technique was used to measure P uptake from fertiliser at seven agricultural field sites under wet and dry growing season conditions. At three of these sites a dual isotopic technique was used to distinguish between wheat uptake of P from fertiliser, topsoil (0–15 cm) and subsoil (below 15 cm). Results The amount of P fertiliser used by wheat was in the order of 3–30% of the P applied and increased with increasing rainfall. Topsoil P was the most important P source, but when sufficient P was present in the subsoil, P fertiliser addition stimulated the use of subsoil P. Conclusions Most crop P uptake was from the topsoil, however P fertiliser banded below the seed increased plant P uptake and stimulated the use of subsoil P in one soil type in a decile 7 (above average rainfall) growing season. | - |
dc.description.statementofresponsibility | T. M. McBeath & M. J. McLaughlin & J. K. Kirby & R. D. Armstrong | - |
dc.language.iso | en | - |
dc.publisher | Kluwer Academic Publ | - |
dc.rights | © Springer Science+Business Media B.V. 2012 | - |
dc.source.uri | http://dx.doi.org/10.1007/s11104-012-1177-8 | - |
dc.subject | Fertiliser efficiency | - |
dc.subject | Isotopic tracing | - |
dc.subject | Isotopic dilution | - |
dc.subject | Drought | - |
dc.subject | Crop nutrition | - |
dc.title | The effect of soil water status on fertiliser, topsoil and subsoil phosphorus utilisation by wheat | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/s11104-012-1177-8 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/LP0882492 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/LP0882492 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | McBeath, T. [0000-0001-6423-367X] | - |
dc.identifier.orcid | McLaughlin, M. [0000-0001-6796-4144] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest Environment Institute publications |
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