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dc.contributor.author
San Martino, Liliana
dc.contributor.author
Sozzi, Gabriel Oscar
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dc.contributor.author
San Martino, Silvina
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dc.contributor.author
Lavado, Raul Silvio
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dc.date.available
2018-09-26T20:38:47Z
dc.date.issued
2010-08
dc.identifier.citation
San Martino, Liliana; Sozzi, Gabriel Oscar; San Martino, Silvina; Lavado, Raul Silvio; Isotopically-labelled nitrogen uptake and partitioning in sweet cherry as influenced by timing of fertilizer application; Elsevier Science; Scientia Horticulturae; 126; 1; 8-2010; 42-49
dc.identifier.issn
0304-4238
dc.identifier.uri
http://hdl.handle.net/11336/61009
dc.description.abstract
Sweet cherry (Prunus avium L.) is a fruit of increasing economic importance though it is less significant than other stone fruit species such as peach. Cherry has received little attention concerning nitrogen (N) uptake and dynamics in mature trees. The aim of this work was to determine N uptake and partitioning as influenced by the timing of fertilizer application in 7-year-old sweet cherry trees cultivated in a cold region (Los Antiguos, Santa Cruz, Argentina; 71°38' W, 46°32' S). Nitrogen (95kgha-1) was applied as ammonium nitrate to a soil with 'Bing' sweet cherry trees grafted onto Prunus mahaleb rootstocks. Fertilization was split into two equal applications per treatment, involving either the commercial fertilizer ammonium nitrate or the same fertilizer labelled with 15N isotope (10% atom.). Treatments consisted of one early spring (full bloom, October 2005) or one summer (late January 2006, 15 days after harvest) application of 15N ammonium nitrate to three replicate trees. Fruit were harvested in early January and leaves were collected at both full canopy and leaf fall. All trees were excavated in winter (August, 2006). Trees were partitioned into their components: trunk, branches (current-season shoots, 1-year-old and over-1-year-old branches), buds of the same age, small roots (less than 1mm thick), large roots, leaves (sampled in February and April), and fruit (collected at harvest). Those components were dried and analysed for total N and 15N content. Total N per tree and N content derived from the fertilizer did not differ between treatments. Summer postharvest 15N application partitioned not only to structural components (trunk and roots) but also to buds and leaves. Uptake efficiency was significantly (p=0.0113) higher in the spring than in the summer application (65.7% vs. 37.44%). Nevertheless, 52.5% of N applied in spring was lost due to harvest and summer pruning. This emphasizes the importance of the postharvest N fertilization which increases N accumulation in both reserve organs and buds though, according to our data, it is less efficiently used. The extent of nitrogen uptake, efficiency of use and partitioning in the following growing seasons are still open questions that deserve further research.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
15n Isotope
dc.subject
N Fertilization
dc.subject
Prunus Avium L.
dc.subject
Uptake And Distribution
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Isotopically-labelled nitrogen uptake and partitioning in sweet cherry as influenced by timing of fertilizer application
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-13T13:12:19Z
dc.journal.volume
126
dc.journal.number
1
dc.journal.pagination
42-49
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: San Martino, Liliana. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Sur; Argentina
dc.description.fil
Fil: Sozzi, Gabriel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina
dc.description.fil
Fil: San Martino, Silvina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Lavado, Raul Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina
dc.journal.title
Scientia Horticulturae
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304423810002694
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.scienta.2010.06.011
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