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Nitrogen-fertilizer forms affect the nitrogen-use efficiency in fertigated citrus groves

Identifieur interne : 000C52 ( Main/Exploration ); précédent : 000C51; suivant : 000C53

Nitrogen-fertilizer forms affect the nitrogen-use efficiency in fertigated citrus groves

Auteurs : José Antônio Quaggio [Brésil] ; Thais Regina Souza [Brésil] ; Fernando César Bachiega Zambrosi [Brésil] ; Rodrigo Marcelli Boaretto [Brésil] ; Dirceu Jr Mattos [Brésil]

Source :

Journal of plant nutrition and soil science : (1999) [ 1436-8730 ] ; 2014.

RBID : Pascal:14-0171664

Descripteurs français

Pascal (Inist)
- Efficacité nutriment, Verger, Rendement, Fruit, Solution édaphique, Science du sol, Relation sol plante, Rutaceae, Agrume, Citrus sinensis, Engrais azoté, Calcium, Ammonium, Nitrate.
Wicri :
- topic : Verger, Fruit, Agrume, Calcium.

English descriptors

KwdEn :
- Ammonium, Calcium, Citrus fruit, Citrus sinensis, Fruit, Nitrates, Nitrogen fertilizer, Nutrient recovery, Orchard, Rutaceae, Soil plant relation, Soil science, Soil solution, Yield.

Abstract

The fertigated area of the Brazilian citrus industry has grown rapidly during recent years, and an efficient management of nitrogen (N) application at these sites is required for sustainable citrus production. Therefore, a field trial with Valencia orange trees [Citrus sinensis (L.) Osbeck] on Swingle citrumelo rootstock (Citrus paradise Macfad. x Poncirus trifoliata L. Raf.) was conducted for 8 years to evaluate the effects of N rates (80, 160, 240 and 320 kg ha^-1 y^-1) applied by fertigation, either as ammonium nitrate (AN) or calcium nitrate (CN), on soil solution dynamics, fruit yield, nutritional status, and N-use efficiency (NUE) of trees. The maximum fruit yield was reached with 240 kg N ha^-1 for AN, whereas a linear response and greater fruit yield was observed for N supplied as CN. The NUE was reduced for both N forms with increasing N rates. However, the NUE for CN was 14 to 38% greater than the NUE for AN. The lower fruit yield and NUE for AN compared to CN-treated trees was associated with the increased acidification of the soil solution with increased AN rates (pH ≤ 4.0). This limited nitrification resulted in a high ammonium (NH⁺₄) concentration in the soil solution and a reduction in the net absorption of cations by the trees, particularly calcium (Ca). Due to the improved ion balance as well as the higher pH of the soil solution (pH ≥ 6.3) and diminished NH⁺₄ availability, gains in both fruit yield and NUE in fertigated citrus groves in tropical soils can be obtained with the use of CN as a source of N.

Affiliations:

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Le document en format XML

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<author><name sortKey="Quaggio, Jose Antonio" sort="Quaggio, Jose Antonio" uniqKey="Quaggio J" first="José Antônio" last="Quaggio">José Antônio Quaggio</name>
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<author><name sortKey="Souza, Thais Regina" sort="Souza, Thais Regina" uniqKey="Souza T" first="Thais Regina" last="Souza">Thais Regina Souza</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Nitrogen-fertilizer forms affect the nitrogen-use efficiency in fertigated citrus groves</title>
<author><name sortKey="Quaggio, Jose Antonio" sort="Quaggio, Jose Antonio" uniqKey="Quaggio J" first="José Antônio" last="Quaggio">José Antônio Quaggio</name>
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<author><name sortKey="Souza, Thais Regina" sort="Souza, Thais Regina" uniqKey="Souza T" first="Thais Regina" last="Souza">Thais Regina Souza</name>
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<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Instituto Agronômico, Centro de Solos e Recursos Ambientais, Av. Barão de Itapura 1481</s1>
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<sZ>2 aut.</sZ>
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<author><name sortKey="Boaretto, Rodrigo Marcelli" sort="Boaretto, Rodrigo Marcelli" uniqKey="Boaretto R" first="Rodrigo Marcelli" last="Boaretto">Rodrigo Marcelli Boaretto</name>
<affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Instituto Agronômico, Centro de Citricultura 'Sylvio Moreira', Rodovia Anhangüera km 158</s1>
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<s3>BRA</s3>
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<placeName><region type="state">État de São Paulo</region>
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<s3>BRA</s3>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonium</term>
<term>Calcium</term>
<term>Citrus fruit</term>
<term>Citrus sinensis</term>
<term>Fruit</term>
<term>Nitrates</term>
<term>Nitrogen fertilizer</term>
<term>Nutrient recovery</term>
<term>Orchard</term>
<term>Rutaceae</term>
<term>Soil plant relation</term>
<term>Soil science</term>
<term>Soil solution</term>
<term>Yield</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Efficacité nutriment</term>
<term>Verger</term>
<term>Rendement</term>
<term>Fruit</term>
<term>Solution édaphique</term>
<term>Science du sol</term>
<term>Relation sol plante</term>
<term>Rutaceae</term>
<term>Agrume</term>
<term>Citrus sinensis</term>
<term>Engrais azoté</term>
<term>Calcium</term>
<term>Ammonium</term>
<term>Nitrate</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Verger</term>
<term>Fruit</term>
<term>Agrume</term>
<term>Calcium</term>
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<front><div type="abstract" xml:lang="en">The fertigated area of the Brazilian citrus industry has grown rapidly during recent years, and an efficient management of nitrogen (N) application at these sites is required for sustainable citrus production. Therefore, a field trial with Valencia orange trees [Citrus sinensis (L.) Osbeck] on Swingle citrumelo rootstock (Citrus paradise Macfad. x Poncirus trifoliata L. Raf.) was conducted for 8 years to evaluate the effects of N rates (80, 160, 240 and 320 kg ha<sup>-1</sup>
 y<sup>-1</sup>
) applied by fertigation, either as ammonium nitrate (AN) or calcium nitrate (CN), on soil solution dynamics, fruit yield, nutritional status, and N-use efficiency (NUE) of trees. The maximum fruit yield was reached with 240 kg N ha<sup>-1</sup>
 for AN, whereas a linear response and greater fruit yield was observed for N supplied as CN. The NUE was reduced for both N forms with increasing N rates. However, the NUE for CN was 14 to 38% greater than the NUE for AN. The lower fruit yield and NUE for AN compared to CN-treated trees was associated with the increased acidification of the soil solution with increased AN rates (pH ≤ 4.0). This limited nitrification resulted in a high ammonium (NH<sup>+</sup>
<sub>4</sub>
) concentration in the soil solution and a reduction in the net absorption of cations by the trees, particularly calcium (Ca). Due to the improved ion balance as well as the higher pH of the soil solution (pH ≥ 6.3) and diminished NH<sup>+</sup>
<sub>4</sub>
 availability, gains in both fruit yield and NUE in fertigated citrus groves in tropical soils can be obtained with the use of CN as a source of N.</div>
</front>
</TEI>
<affiliations><list><country><li>Brésil</li>
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<region><li>État de São Paulo</li>
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<tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Quaggio, Jose Antonio" sort="Quaggio, Jose Antonio" uniqKey="Quaggio J" first="José Antônio" last="Quaggio">José Antônio Quaggio</name>
</region>
<name sortKey="Bachiega Zambrosi, Fernando Cesar" sort="Bachiega Zambrosi, Fernando Cesar" uniqKey="Bachiega Zambrosi F" first="Fernando César" last="Bachiega Zambrosi">Fernando César Bachiega Zambrosi</name>
<name sortKey="Boaretto, Rodrigo Marcelli" sort="Boaretto, Rodrigo Marcelli" uniqKey="Boaretto R" first="Rodrigo Marcelli" last="Boaretto">Rodrigo Marcelli Boaretto</name>
<name sortKey="Mattos, Dirceu Jr" sort="Mattos, Dirceu Jr" uniqKey="Mattos D" first="Dirceu Jr" last="Mattos">Dirceu Jr Mattos</name>
<name sortKey="Souza, Thais Regina" sort="Souza, Thais Regina" uniqKey="Souza T" first="Thais Regina" last="Souza">Thais Regina Souza</name>
</country>
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</record>

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Nitrogen-fertilizer forms affect the nitrogen-use efficiency in fertigated citrus groves

Nitrogen-fertilizer forms affect the nitrogen-use efficiency in fertigated citrus groves

Source :

Descripteurs français

English descriptors

Abstract

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

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Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri