Evaluation of 3,4-dimethylpyrazole phosphate as a nitrification inhibitor in a Citrus-cultivated soil
Identifieur interne : 003008 ( Main/Exploration ); précédent : 003007; suivant : 003009Evaluation of 3,4-dimethylpyrazole phosphate as a nitrification inhibitor in a Citrus-cultivated soil
Auteurs : M. D. Serna [Espagne] ; J. Banuls [Espagne] ; A. Quinones [Espagne] ; E. Primo-Millo [Espagne] ; F. Legaz [Espagne]Source :
- Biology and fertility of soils [ 0178-2762 ] ; 2000.
Descripteurs français
- Pascal (Inist)
- Efficacité traitement, Inhibition, Nitrification, Addition, Fertilisation azotée, Lessivage, Perte substance, Rétention, Agrume, Citrus sinensis, Inhibiteur nitrification, Ammonium, Ammonium nitrate, Ammonium sulfate, Azote, Nitrate, Sol cultivé, Etude expérimentale, Etude en condition contrôlée, Culture en conteneur, Etude en serre, Pyrazolium(3,4-diméthyl) dihydrogénophosphate, SOL DE VERGER, EXPERIMENTATION EN POT.
- Wicri :
English descriptors
- KwdEn :
- 3,4-dimethylpyrazole phosphate, Addition, Ammonium, Ammonium nitrate, Ammonium sulfate, Citrus fruit, Citrus sinensis, Container growing, Controlled environment study, Cultivated soil, Experimental study, Greenhouse study, Inhibition, Leaching, Nitrates, Nitrification, Nitrification inhibitor, Nitrogen, Nitrogen fertilization, ORCHARD SOILS, POT EXPERIMENTATION, Retention, Substance loss, Treatment efficiency.
Abstract
The objectives of this work were to evaluate the inhibitory action on nitrification of 3,4-dimethylpyrazole phosphate (DMPP) added to ammonium sulphate nitrate [(NH4)2SO4 plus NH4NO3; ASN] in a Citrus-cultivated soil, and to study its effect on N uptake. In a greenhouse experiment, 2 g N as ASN either with or without 0.015 g DMPP (1% DMPP relative to NH4+-N) was applied 6 times at 20-day intervals to plants grown in 14-1 pots filled with soil. Addition of DMPP to ASN resulted in higher levels of NH4+-N and lower levels of NO3--N in the soil during the whole experimental period. The NO3--N concentration in drainage water was lower in the ASN plus DMPP (ASN + DMPP)-treated pots. Also, DMPP supplementation resulted in greater uptake of the fertilizer-N by citrus plants. In another experiment, 100 g N as ASN, either with or without 0.75 g DMPP (1% DMPP relative to NH4+-N) was applied to 6-year-old citrus plants grown individually outdoors in containers. Concentrations of NH4+-N and NO3--N at different soil depths and N distribution in the soil profile after consecutive flood irrigations were monitored. In the ASN-amended soil, nitrification was faster, whereas the addition of the inhibitor led to the maintenance of relatively high levels of NH4+-N and NO3--N in soil for longer than when ASN was added alone. At the end of the experiment (120 days) 68.5% and 53.1% of the applied N was leached below 0.60 m in the ASN and ASN + DMPP treatments, respectively. Also, leaf N levels were higher in plants fertilized with ASN + DMPP. Collectively, these results indicate that the DMPP nitrification inhibitor improved N fertilizer efficiency and reduced NO3- leaching losses by retaining the applied N in the ammoniacal form.
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>3,4-dimethylpyrazole phosphate</term>
<term>Addition</term>
<term>Ammonium</term>
<term>Ammonium nitrate</term>
<term>Ammonium sulfate</term>
<term>Citrus fruit</term>
<term>Citrus sinensis</term>
<term>Container growing</term>
<term>Controlled environment study</term>
<term>Cultivated soil</term>
<term>Experimental study</term>
<term>Greenhouse study</term>
<term>Inhibition</term>
<term>Leaching</term>
<term>Nitrates</term>
<term>Nitrification</term>
<term>Nitrification inhibitor</term>
<term>Nitrogen</term>
<term>Nitrogen fertilization</term>
<term>ORCHARD SOILS</term>
<term>POT EXPERIMENTATION</term>
<term>Retention</term>
<term>Substance loss</term>
<term>Treatment efficiency</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Efficacité traitement</term>
<term>Inhibition</term>
<term>Nitrification</term>
<term>Addition</term>
<term>Fertilisation azotée</term>
<term>Lessivage</term>
<term>Perte substance</term>
<term>Rétention</term>
<term>Agrume</term>
<term>Citrus sinensis</term>
<term>Inhibiteur nitrification</term>
<term>Ammonium</term>
<term>Ammonium nitrate</term>
<term>Ammonium sulfate</term>
<term>Azote</term>
<term>Nitrate</term>
<term>Sol cultivé</term>
<term>Etude expérimentale</term>
<term>Etude en condition contrôlée</term>
<term>Culture en conteneur</term>
<term>Etude en serre</term>
<term>Pyrazolium(3,4-diméthyl) dihydrogénophosphate</term>
<term>SOL DE VERGER</term>
<term>EXPERIMENTATION EN POT</term>
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<front><div type="abstract" xml:lang="en">The objectives of this work were to evaluate the inhibitory action on nitrification of 3,4-dimethylpyrazole phosphate (DMPP) added to ammonium sulphate nitrate [(NH<sub>4</sub>
)<sub>2</sub>
SO<sub>4</sub>
plus NH<sub>4</sub>
NO<sub>3</sub>
; ASN] in a Citrus-cultivated soil, and to study its effect on N uptake. In a greenhouse experiment, 2 g N as ASN either with or without 0.015 g DMPP (1% DMPP relative to NH<sub>4</sub>
<sup>+</sup>
-N) was applied 6 times at 20-day intervals to plants grown in 14-1 pots filled with soil. Addition of DMPP to ASN resulted in higher levels of NH<sub>4</sub>
<sup>+</sup>
-N and lower levels of NO<sub>3</sub>
<sup>-</sup>
-N in the soil during the whole experimental period. The NO<sub>3</sub>
<sup>-</sup>
-N concentration in drainage water was lower in the ASN plus DMPP (ASN + DMPP)-treated pots. Also, DMPP supplementation resulted in greater uptake of the fertilizer-N by citrus plants. In another experiment, 100 g N as ASN, either with or without 0.75 g DMPP (1% DMPP relative to NH<sub>4</sub>
<sup>+</sup>
-N) was applied to 6-year-old citrus plants grown individually outdoors in containers. Concentrations of NH<sub>4</sub>
<sup>+</sup>
-N and NO<sub>3</sub>
<sup>-</sup>
-N at different soil depths and N distribution in the soil profile after consecutive flood irrigations were monitored. In the ASN-amended soil, nitrification was faster, whereas the addition of the inhibitor led to the maintenance of relatively high levels of NH<sub>4</sub>
<sup>+</sup>
-N and NO<sub>3</sub>
<sup>-</sup>
-N in soil for longer than when ASN was added alone. At the end of the experiment (120 days) 68.5% and 53.1% of the applied N was leached below 0.60 m in the ASN and ASN + DMPP treatments, respectively. Also, leaf N levels were higher in plants fertilized with ASN + DMPP. Collectively, these results indicate that the DMPP nitrification inhibitor improved N fertilizer efficiency and reduced NO<sub>3</sub>
<sup>-</sup>
leaching losses by retaining the applied N in the ammoniacal form.</div>
</front>
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<affiliations><list><country><li>Espagne</li>
</country>
<region><li>Communauté valencienne</li>
</region>
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<tree><country name="Espagne"><region name="Communauté valencienne"><name sortKey="Serna, M D" sort="Serna, M D" uniqKey="Serna M" first="M. D." last="Serna">M. D. Serna</name>
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<name sortKey="Banuls, J" sort="Banuls, J" uniqKey="Banuls J" first="J." last="Banuls">J. Banuls</name>
<name sortKey="Legaz, F" sort="Legaz, F" uniqKey="Legaz F" first="F." last="Legaz">F. Legaz</name>
<name sortKey="Primo Millo, E" sort="Primo Millo, E" uniqKey="Primo Millo E" first="E." last="Primo-Millo">E. Primo-Millo</name>
<name sortKey="Quinones, A" sort="Quinones, A" uniqKey="Quinones A" first="A." last="Quinones">A. Quinones</name>
</country>
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