Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/84731
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Debaeke, Philippe | - |
dc.contributor.author | Oosterom, E. J. van | - |
dc.contributor.author | Justes, Éric | - |
dc.contributor.author | Champolivier, L. | - |
dc.contributor.author | Merrien, A. | - |
dc.contributor.author | Aguirrezábal, Luis A. N. | - |
dc.contributor.author | González-Dugo, Victoria | - |
dc.contributor.author | Massingnam, A. M. | - |
dc.contributor.author | Montemurro, F. | - |
dc.date.accessioned | 2013-10-22T09:36:58Z | - |
dc.date.available | 2013-10-22T09:36:58Z | - |
dc.date.issued | 2012-09 | - |
dc.identifier | doi: 10.1016/j.fcr.2012.07.024 | - |
dc.identifier | issn: 0378-4290 | - |
dc.identifier.citation | Field Crops Research 136: 76-84 (2012) | - |
dc.identifier.uri | http://hdl.handle.net/10261/84731 | - |
dc.description.abstract | For annual and perennial crops, mathematical models have been developed to describe tissue nitrogen (N) dilution during crop growth and to estimate the plant N status applying the N nutrition index (NNI), the ratio between the actual tissue N concentration ([N]) and the tissue N concentration needed to obtain the maximum instantaneous crop growth rate (critical tissue N concentration, [N] c). The relationship between shoot [N] c and shoot dry matter (DM, tha -1) can be described by an allometric power equation: [N] c=aDM -b, where a and b are crop-specific parameters. Critical N dilution curves (CNDC) have been determined for several C 3 crops but not specifically for sunflower (Helianthus annuus L.). The objectives of this work were to (i) determine and validate the N dilution curves for critical, minimum, and maximum [N] for sunflower from the juvenile stages to the end of flowering, (ii) compare the critical curve with published CNDCs for other C 3 crops, and (iii) estimate the range of variation of NNI for different levels of N fertilization and irrigation. A wide range of field experiments from Argentina, Australia, France, Italy, and Spain was used to establish the dilution curve for sunflower and to independently validate it. The fitted CNDC [N] c=4.53DM -0.42 yielded lower values for [N] c than references used until now for diagnosis and decision making in sunflower. The value of parameter a was generally similar to that of other C 3 species, but the value for parameter b differed. This was possibly associated with species differences in dry mass partitioning, and justified the development of a sunflower-specific CNDC. A preliminary reference curve for maximum [N] suggested an evolution from the juvenile stages to the end of flowering similar to that of [N] c. Minimum [N], in contrast, appeared to be more constant over time. Relationships between relative grain yield and NNI across a range of locations indicated that in general, maximum grain yield was reached around NNI=0.8, although at one location this was around NNI=1.0. The CNDC can provide useful applications for crop modeling, N status diagnosis, and N fertilization decision. © 2012 Elsevier B.V. | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.title | A species-specific critical nitrogen dilution curve for sunflower (Helianthus annuus L.) | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.fcr.2012.07.024 | - |
dc.date.updated | 2013-10-22T09:36:58Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
Aparece en las colecciones: | (IAS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
63
checked on 24-mar-2024
WEB OF SCIENCETM
Citations
43
checked on 24-feb-2024
Page view(s)
323
checked on 17-abr-2024
Download(s)
132
checked on 17-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.