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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
03/12/2019 |
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Data da última atualização: |
12/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PUGA, A. P.; GRUTZMACHER, P.; CERRI, C. E. P.; RIBEIRINHO, V. S.; ANDRADE, C. A. de. |
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Afiliação: |
ALINE PEREGRINA PUGA, FAPESP; PRISCILA GRUTZMACHER; CARLOS EDUARDO PELLEGRINO CERRI, ESALQ-USP; VICTOR SANCHES RIBEIRINHO; CRISTIANO ALBERTO DE ANDRADE, CNPMA. |
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Título: |
Biochar-based nitrogen fertilizers: greenhouse gas emissions, use efficiency, and maize yield in tropical soils. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 704, article 135375, 2019. |
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ISSN: |
0048-9697 |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2019.135375 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The sustainable development of agriculture depends on increasing N use efficiency (NUE) and volatilization, NO3 - leaching, and N2O emissions. While the chemical and physical properties of biochar (BC) in fertilizers have been evaluated to increase NUE, a lack of information exists regarding the effects of BC amendments in tropical soils. We performed a one-year field experiment with tropical soil to evaluate the effects of BCbased N fertilizers (BN) on maize yield and on greenhouse gas (GHG) emissions. The treatments consisted of five fertilizers: ammonium nitrate (AN), urea (U), BN51/10 (51% BC, 10% N), BN40/17 (40% BC, 17% N), BN29/20 (29% BC, 20% N), and a control (without N fertilizer). The N fertilizers (80 kg N ha-1) were broadcast 20 days after sowing. Yield, grain N uptake, NUE, ammonia volatilization, and GHG emissions were measured. The results demonstrated the potential of BNs to enhance the efficiency of the fertilizers. BN51/10 and BN40/17 had an average maize yield that was 26% higher than that of U, and BN51/10 resulted in a NUE that was 12% higher than what was observed for U. Both the effects on yield and NUE were attributed to lower N release rates of the BN-amended fertilizers compared to that of the conventional soluble N sources. The BC-based fertilizers presented better environmental performance, and BN51/10 showed the lowest emission intensity when C sequestration by BC was not considered, with a value that was 14% lower than that of the U treatment. When considering C sequestration by BC, the emission intensity of the C equivalents demonstrated that all BNs presented C sequestration that differed from that of the mineral N sources. BC-based nitrogen fertilizers may have promising applications for sustainable agricultural development by mitigating N losses and increasing C stocks. MenosAbstract: The sustainable development of agriculture depends on increasing N use efficiency (NUE) and volatilization, NO3 - leaching, and N2O emissions. While the chemical and physical properties of biochar (BC) in fertilizers have been evaluated to increase NUE, a lack of information exists regarding the effects of BC amendments in tropical soils. We performed a one-year field experiment with tropical soil to evaluate the effects of BCbased N fertilizers (BN) on maize yield and on greenhouse gas (GHG) emissions. The treatments consisted of five fertilizers: ammonium nitrate (AN), urea (U), BN51/10 (51% BC, 10% N), BN40/17 (40% BC, 17% N), BN29/20 (29% BC, 20% N), and a control (without N fertilizer). The N fertilizers (80 kg N ha-1) were broadcast 20 days after sowing. Yield, grain N uptake, NUE, ammonia volatilization, and GHG emissions were measured. The results demonstrated the potential of BNs to enhance the efficiency of the fertilizers. BN51/10 and BN40/17 had an average maize yield that was 26% higher than that of U, and BN51/10 resulted in a NUE that was 12% higher than what was observed for U. Both the effects on yield and NUE were attributed to lower N release rates of the BN-amended fertilizers compared to that of the conventional soluble N sources. The BC-based fertilizers presented better environmental performance, and BN51/10 showed the lowest emission intensity when C sequestration by BC was not considered, with a value that was 14% lower than that of the U t... Mostrar Tudo |
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Palavras-Chave: |
Biocarvão; CH4 emission; Increased efficiency; N loss; N2O emission. |
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Thesagro: |
Amônia; Fertilizante; Nitrogênio. |
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Thesaurus Nal: |
Ammonia; Biochar; Greenhouse gases; Methane; Nitrous oxide. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02853naa a2200349 a 4500
001 2115772
005 2021-04-12
008 2019 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2019.135375$2DOI
100 1 $aPUGA, A. P.
245 $aBiochar-based nitrogen fertilizers$bgreenhouse gas emissions, use efficiency, and maize yield in tropical soils.$h[electronic resource]
260 $c2019
520 $aAbstract: The sustainable development of agriculture depends on increasing N use efficiency (NUE) and volatilization, NO3 - leaching, and N2O emissions. While the chemical and physical properties of biochar (BC) in fertilizers have been evaluated to increase NUE, a lack of information exists regarding the effects of BC amendments in tropical soils. We performed a one-year field experiment with tropical soil to evaluate the effects of BCbased N fertilizers (BN) on maize yield and on greenhouse gas (GHG) emissions. The treatments consisted of five fertilizers: ammonium nitrate (AN), urea (U), BN51/10 (51% BC, 10% N), BN40/17 (40% BC, 17% N), BN29/20 (29% BC, 20% N), and a control (without N fertilizer). The N fertilizers (80 kg N ha-1) were broadcast 20 days after sowing. Yield, grain N uptake, NUE, ammonia volatilization, and GHG emissions were measured. The results demonstrated the potential of BNs to enhance the efficiency of the fertilizers. BN51/10 and BN40/17 had an average maize yield that was 26% higher than that of U, and BN51/10 resulted in a NUE that was 12% higher than what was observed for U. Both the effects on yield and NUE were attributed to lower N release rates of the BN-amended fertilizers compared to that of the conventional soluble N sources. The BC-based fertilizers presented better environmental performance, and BN51/10 showed the lowest emission intensity when C sequestration by BC was not considered, with a value that was 14% lower than that of the U treatment. When considering C sequestration by BC, the emission intensity of the C equivalents demonstrated that all BNs presented C sequestration that differed from that of the mineral N sources. BC-based nitrogen fertilizers may have promising applications for sustainable agricultural development by mitigating N losses and increasing C stocks.
650 $aAmmonia
650 $aBiochar
650 $aGreenhouse gases
650 $aMethane
650 $aNitrous oxide
650 $aAmônia
650 $aFertilizante
650 $aNitrogênio
653 $aBiocarvão
653 $aCH4 emission
653 $aIncreased efficiency
653 $aN loss
653 $aN2O emission
700 1 $aGRUTZMACHER, P.
700 1 $aCERRI, C. E. P.
700 1 $aRIBEIRINHO, V. S.
700 1 $aANDRADE, C. A. de
773 $tScience of The Total Environment$gv. 704, article 135375, 2019.
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Embrapa Meio Ambiente (CNPMA) |
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