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dc.contributor.authorGeorge, Jessey
dc.contributor.authorHoltham, Luke
dc.contributor.authorSabermanesh, Kasra
dc.contributor.authorHeuer, Sigrid
dc.contributor.authorTester, Mark
dc.contributor.authorPlett, Darren
dc.contributor.authorGarnett, Trevor
dc.date.accessioned2017-01-01T13:44:45Z
dc.date.available2017-01-01T13:44:45Z
dc.date.issued2016-09-16
dc.identifier.citationGeorge, J., Holtham, L., Sabermanesh, K., Heuer, S., Tester, M., Plett, D., & Garnett, T. (2016). Small amounts of ammonium (NH$ _4^+ $) can increase growth of maize (Zea mays). Journal of Plant Nutrition and Soil Science, 179(6), 717–725. doi:10.1002/jpln.201500625
dc.identifier.issn1436-8730
dc.identifier.doi10.1002/jpln.201500625
dc.identifier.urihttp://hdl.handle.net/10754/622124
dc.description.abstractNitrate (NOequation image) and ammonium (NHequation image) are the predominant forms of nitrogen (N) available to plants in agricultural soils. Nitrate concentrations are generally ten times higher than those of NHequation image and this ratio is consistent across a wide range of soil types. The possible contribution of these small concentrations of NHequation image to the overall N budget of crop plants is often overlooked. In this study the importance of this for the growth and nitrogen budget of maize (Zea mays L.) was investigated, using agriculturally relevant concentrations of NHequation image. Maize inbred line B73 was grown hydroponically for 30 d at low (0.5 mM) and sufficient (2.5 mM) levels of NOequation image. Ammonium was added at 0.05 mM and 0.25 mM to both levels of NOequation image. At low NOequation image levels, addition of NHequation image was found to improve the growth of maize plants. This increased plant growth was accompanied by an increase in total N uptake, as well as total phosphorus, sulphur and other micronutrients in the shoot. Ammonium influx was higher than NOequation image influx for all the plants and decreased as the total N in the nutrient medium increased. This study shows that agriculturally relevant proportions of NHequation image supplied in addition to NOequation image can increase growth of maize.
dc.description.sponsorshipThe authors would like to acknowledge the technical assistance provided by research and technical staff at Australian Centre for Plant Functional Genomics (ACPFG) and Plant Research Centre in the University of Adelaide. This study was funded by the Australian Centre for Plant Functional Genomics (ACPFG), the Grains Research and Development Corporation (GRDC), and Australian Research Council Linkage Grant (LP130101055).
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/jpln.201500625/abstract
dc.relation.urlhttps://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1002/jpln.201500625
dc.rightsThis is the peer reviewed version of the following article: George, J., Holtham, L., Sabermanesh, K., Heuer, S., Tester, M., Plett, D. and Garnett, T. (2016), Small amounts of ammonium (NHequation image) can increase growth of maize (Zea mays). J. Plant Nutr. Soil Sci.. , which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jpln.201500625/abstract. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.rightsThis file is an open access version redistributed from: https://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1002/jpln.201500625
dc.subjectammonium
dc.subjectnitrate
dc.subjection fluxes
dc.subjectN uptake
dc.subjectN budget
dc.titleSmall amounts of ammonium (NH4$^{+}$) can increase growth of maize (Zea mays)
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentDesert Agriculture Initiative
dc.contributor.departmentPlant Science
dc.contributor.departmentPlant Science Program
dc.identifier.journalJournal of Plant Nutrition and Soil Science
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Urrbrae, SA 5064, Australia
dc.contributor.institutionAustralian Centre for Plant Functional Genomics, Waite Research Institute, Urrbrae, SA 5064, Australia
dc.identifier.volume179
dc.identifier.issue6
dc.identifier.pages717-725
kaust.personTester, Mark A.
dc.identifier.eid2-s2.0-84992663851
refterms.dateFOA2021-06-16T12:01:33Z
dc.date.published-online2016-09-16
dc.date.published-print2016-12


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