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Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees

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Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees

Auteurs : Ana Quinones [Espagne] ; Josefina Banuls [Espagne] ; Eduardo Primo Millo [Espagne] ; Francisco Legaz [Espagne]

Source :

Journal of plant physiology [ 0176-1617 ] ; 2003.

RBID : Pascal:04-0058645

Descripteurs français

Pascal (Inist)
- Efficacité nutriment, Racine, Absorption, Fractionnement isotopique, Comparaison interspécifique, Fertilisation azotée, Irrigation, Noyage, Engorgement sol, Citrus sinensis, Nitrate, Sol sableux loameux, Modalité traitement, Exigence, Fertilisation raisonnée, Citrus sinensis Poncirus trifoliata, Azote 15, IRRIGATION GOUTTE A GOUTTE.
Wicri :
- topic : Irrigation.

English descriptors

KwdEn :
- Absorption, Application method, Balanced fertilization, Citrus sinensis, Flooding, Interspecific comparison, Irrigation, Isotopic fractionation, Nitrates, Nitrogen fertilization, Nutrient recovery, Requirement, Root, Sandy loam soil, TRICKLE IRRIGATION, Waterlogging (soil).

Abstract

Two irrigation systems were used to compare nitrogen uptake efficiency in citrus trees and to evaluate the NO₃- runoff in «Navelina» orange trees [Citrus sinensis (L.) Osbeck] on Carrizo citrange rootstock (Citrus sinensis x Poncirus trifoliata Raf.). These were fertilized with 125 g N as labelled K¹⁵NO₃ and grown outdoors in containers filled with a sand-loamy soil. Two groups of 3 trees received this N dose either in five equally split applications by a flooding irrigation system or in 66 applications by drip. Trees were harvested at the end of the vegetative cycle (December) and the isotopic ratios of ¹⁵N/¹⁴N were measured in the soil-plant system. The N uptake efficiency of the whole tree was higher with drip irrigation (75%) than with flooding system (64%) In the 0-90cm soil profile, the N immobilized in the organic fraction was similar for both irrigation methods (around 13 %), whereas the N retained as NO₃- was 1% of the N applied under drip and 10% under flooding. In the last case, most of NO₃- remained under root system and it could be lost to leaching either by heavy rainfalls or excessive water applications. These results showed that a drip irrigation system was more efficient for improving water use and N uptake from fertilizer, in addition to potentially reduced leaching losses.

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Pascal:04-0058645

Le document en format XML

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N application frequency on nitrogen uptake efficiency in Citrus trees</title>
<author><name sortKey="Quinones, Ana" sort="Quinones, Ana" uniqKey="Quinones A" first="Ana" last="Quinones">Ana Quinones</name>
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<author><name sortKey="Legaz, Francisco" sort="Legaz, Francisco" uniqKey="Legaz F" first="Francisco" last="Legaz">Francisco Legaz</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Effects of <sup>15</sup>
N application frequency on nitrogen uptake efficiency in Citrus trees</title>
<author><name sortKey="Quinones, Ana" sort="Quinones, Ana" uniqKey="Quinones A" first="Ana" last="Quinones">Ana Quinones</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departamento de Citricultura y otros Frutales, Instituto Valenciano de Investigaciones Agrarias (I.V.I.A.), Carretera Moncada-Náquera, km 4.5.</s1>
<s2>46113, Moncada (Valencia)</s2>
<s3>ESP</s3>
<sZ>1 aut.</sZ>
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<sZ>3 aut.</sZ>
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<country>Espagne</country>
<wicri:noRegion>46113, Moncada (Valencia)</wicri:noRegion>
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</author>
<author><name sortKey="Banuls, Josefina" sort="Banuls, Josefina" uniqKey="Banuls J" first="Josefina" last="Banuls">Josefina Banuls</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departamento de Citricultura y otros Frutales, Instituto Valenciano de Investigaciones Agrarias (I.V.I.A.), Carretera Moncada-Náquera, km 4.5.</s1>
<s2>46113, Moncada (Valencia)</s2>
<s3>ESP</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<country>Espagne</country>
<wicri:noRegion>46113, Moncada (Valencia)</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Primo Millo, Eduardo" sort="Primo Millo, Eduardo" uniqKey="Primo Millo E" first="Eduardo" last="Primo Millo">Eduardo Primo Millo</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departamento de Citricultura y otros Frutales, Instituto Valenciano de Investigaciones Agrarias (I.V.I.A.), Carretera Moncada-Náquera, km 4.5.</s1>
<s2>46113, Moncada (Valencia)</s2>
<s3>ESP</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<country>Espagne</country>
<wicri:noRegion>46113, Moncada (Valencia)</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Legaz, Francisco" sort="Legaz, Francisco" uniqKey="Legaz F" first="Francisco" last="Legaz">Francisco Legaz</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departamento de Citricultura y otros Frutales, Instituto Valenciano de Investigaciones Agrarias (I.V.I.A.), Carretera Moncada-Náquera, km 4.5.</s1>
<s2>46113, Moncada (Valencia)</s2>
<s3>ESP</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<country>Espagne</country>
<wicri:noRegion>46113, Moncada (Valencia)</wicri:noRegion>
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<imprint><date when="2003">2003</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption</term>
<term>Application method</term>
<term>Balanced fertilization</term>
<term>Citrus sinensis</term>
<term>Flooding</term>
<term>Interspecific comparison</term>
<term>Irrigation</term>
<term>Isotopic fractionation</term>
<term>Nitrates</term>
<term>Nitrogen fertilization</term>
<term>Nutrient recovery</term>
<term>Requirement</term>
<term>Root</term>
<term>Sandy loam soil</term>
<term>TRICKLE IRRIGATION</term>
<term>Waterlogging (soil)</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Efficacité nutriment</term>
<term>Racine</term>
<term>Absorption</term>
<term>Fractionnement isotopique</term>
<term>Comparaison interspécifique</term>
<term>Fertilisation azotée</term>
<term>Irrigation</term>
<term>Noyage</term>
<term>Engorgement sol</term>
<term>Citrus sinensis</term>
<term>Nitrate</term>
<term>Sol sableux loameux</term>
<term>Modalité traitement</term>
<term>Exigence</term>
<term>Fertilisation raisonnée</term>
<term>Citrus sinensis  Poncirus trifoliata</term>
<term>Azote 15</term>
<term>IRRIGATION GOUTTE A GOUTTE</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Irrigation</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Two irrigation systems were used to compare nitrogen uptake efficiency in citrus trees and to evaluate the NO<sub>3</sub>
- runoff in «Navelina» orange trees [Citrus sinensis (L.) Osbeck] on Carrizo citrange rootstock (Citrus sinensis x Poncirus trifoliata Raf.). These were fertilized with 125 g N as labelled K<sup>15</sup>
NO<sub>3</sub>
 and grown outdoors in containers filled with a sand-loamy soil. Two groups of 3 trees received this N dose either in five equally split applications by a flooding irrigation system or in 66 applications by drip. Trees were harvested at the end of the vegetative cycle (December) and the isotopic ratios of <sup>15</sup>
N/<sup>14</sup>
N were measured in the soil-plant system. The N uptake efficiency of the whole tree was higher with drip irrigation (75%) than with flooding system (64%) In the 0-90cm soil profile, the N immobilized in the organic fraction was similar for both irrigation methods (around 13 %), whereas the N retained as NO<sub>3</sub>
- was 1% of the N applied under drip and 10% under flooding. In the last case, most of NO<sub>3</sub>
- remained under root system and it could be lost to leaching either by heavy rainfalls or excessive water applications. These results showed that a drip irrigation system was more efficient for improving water use and N uptake from fertilizer, in addition to potentially reduced leaching losses.</div>
</front>
</TEI>
<affiliations><list><country><li>Espagne</li>
</country>
</list>
<tree><country name="Espagne"><noRegion><name sortKey="Quinones, Ana" sort="Quinones, Ana" uniqKey="Quinones A" first="Ana" last="Quinones">Ana Quinones</name>
</noRegion>
<name sortKey="Banuls, Josefina" sort="Banuls, Josefina" uniqKey="Banuls J" first="Josefina" last="Banuls">Josefina Banuls</name>
<name sortKey="Legaz, Francisco" sort="Legaz, Francisco" uniqKey="Legaz F" first="Francisco" last="Legaz">Francisco Legaz</name>
<name sortKey="Primo Millo, Eduardo" sort="Primo Millo, Eduardo" uniqKey="Primo Millo E" first="Eduardo" last="Primo Millo">Eduardo Primo Millo</name>
</country>
</tree>
</affiliations>
</record>

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Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees

Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri