Growth response and nitrogen use physiology of Fraser fir (Abies fraseri), red pine (Pinus resinosa), and hybrid poplar under amino acid nutrition

dc.contributor.authorWilson, Alexa R.
dc.contributor.authorNzokou, Pascal
dc.contributor.authorGüney, Deniz
dc.contributor.authorKulaç, Şemsettin
dc.date.accessioned2020-05-01T12:10:16Z
dc.date.available2020-05-01T12:10:16Z
dc.date.issued2013
dc.departmentDÜ, Orman Fakültesi, Orman Mühendisliği Bölümüen_US
dc.descriptionWOS: 000314410400009en_US
dc.description.abstractPlants can assimilate amino acids from soils. This has been demonstrated in controlled environments and soils of various forest ecosystems. However, the role of root-absorbed amino acids in plant nitrogen nutrition is still poorly understood. We investigated the agroecological performance and nutrient use physiology of two conifers (Abies fraseri and Pinus resinosa) and one hardwood species (hybrid poplar) under amino acid fertilization. Arginine fertilizer (arGrow(A (R)) Complete) was applied at varying rates (0, 56, 112, 224, and 336 kg N/ha) and compared to an inorganic control treatment (ammonium sulfate 112 kg N/ha). Parameters monitored included tree growth response, foliar nitrogen concentration, and inorganic nitrogen leaching below the rootzone. Results obtained indicate a significant growth and foliar nitrogen response to amino acid treatments, with increasing amino acid application leading to greater growth and foliar nitrogen. However, rates two to three times higher than that of the inorganic control were necessary to provide similar growth and foliar nitrogen responses. These observations were suggested to be due to competition with soil microbes for organic nitrogen, growth inhibition due to the presence of large concentrations of amino acids, or adsorption to cation exchange sites. Amino acid applications did not increase the leaching of inorganic nitrogen due either to the binding of positively charged arginine cations to exchange sites or rapid mineralization followed by plant assimilation. Mineral nitrogen collected in leachate samples increased with the application rate suggesting at least some mineralization in high amino acid application rates. We conclude that growth response and nitrogen use physiology of these species when treated with arginine are largely controlled by soil processes including microbial competition and adsorption. Further studies are being conducted to confirm these hypotheses.en_US
dc.description.sponsorshipMSU AgBioResearch Station; Michigan Seedlings Growers Associationen_US
dc.description.sponsorshipSpecial thank to SweTree Technologies for providing the Amino Acid Fertilizer used in this study and for technical support. This study was financially supported by the MSU AgBioResearch Station and the Michigan Seedlings Growers Association.en_US
dc.identifier.doi10.1007/s11056-012-9317-9en_US
dc.identifier.endpage295en_US
dc.identifier.issn0169-4286
dc.identifier.issn1573-5095
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage281en_US
dc.identifier.urihttps://doi.org/10.1007/s11056-012-9317-9
dc.identifier.urihttps://hdl.handle.net/20.500.12684/6117
dc.identifier.volume44en_US
dc.identifier.wosWOS:000314410400009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofNew Forestsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectOrganic nitrogenen_US
dc.subjectArginineen_US
dc.subjectNitrogen leachingen_US
dc.subjectTree nutritionen_US
dc.subjectShort rotation cropping systemsen_US
dc.titleGrowth response and nitrogen use physiology of Fraser fir (Abies fraseri), red pine (Pinus resinosa), and hybrid poplar under amino acid nutritionen_US
dc.typeArticleen_US

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