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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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
13/09/2023 |
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Data da última atualização: |
13/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, L. A. P. da; SENA-SOUZA, J. P.; SOUZA, C. M. P.; SILVA, C. R. da; BOLFE, E. L.; CHAGAS-REIS, C. C.; LEITE, M. E. |
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Afiliação: |
LUCAS AUGUSTO PEREIRA DA SILVA, UNIVERSIDADE FEDERAL DE UBERLÂNDIA; JOÃO PAULO SENA-SOUZA, UNIVERSIDADE ESTADUAL DE MONTES CLAROS; CRISTIANO MARCELO PEREIRA SOUZA, UNIVERSIDADE ESTADUAL DE MONTES CLAROS; CLAUDIONOR RIBEIRO DA SILVA, UNIVERSIDADE FEDERAL DE UBERLÂNDIA; EDSON LUIS BOLFE, CNPTIA; CAROLINA CABRAL CHAGAS-REIS, UNIVERSIDADE ESTADUAL DE MONTES CLAROS; MARCOS ESDRAS LEITE, UNIVERSIDADE ESTADUAL DE MONTES CLAROS. |
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Título: |
Drivers of degradation of pastures in the Cerrado north of Minas Gerais - BR. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
RA´EGA: o Espaço Geográfico em Análise, v. 57, p. 66-80, 2023. |
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ISSN: |
2177-2738 |
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DOI: |
http://dx.doi.org/10.5380/raega.v57i0.92339 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo desse trabalho foi elaborar um modelo para avaliação os vetores da degradação das pastagens no Cerrado norte mineiro. A estrutura metodológica foi baseada em: I) mapeamento do índice de degradação de pastagens (IDP) por meio de técnicas de sensoriamento remoto, II) montagem de um banco de dados com variáveis preditoras representando os aspectos socioeconômicos, de relevo e climáticos, e III) elaboração de um modelo para avaliação dos vetores da degradação das pastagens com regressão linear múltipla. |
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Palavras-Chave: |
Degradação de pastagem; Degradation index of pastures; Índice de degradação de pastagens; Pasture degradation index; Savana; Savannah; Vetores de degradação de pastagens. |
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Thesagro: |
Cerrado; Sensoriamento Remoto. |
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Thesaurus NAL: |
Degradation; Remote sensing. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1156644/1/AP-Drivers-degradation-2023.pdf
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Marc: |
LEADER 01615naa a2200349 a 4500
001 2156644
005 2023-09-13
008 2023 bl uuuu u00u1 u #d
022 $a2177-2738
024 7 $ahttp://dx.doi.org/10.5380/raega.v57i0.92339$2DOI
100 1 $aSILVA, L. A. P. da
245 $aDrivers of degradation of pastures in the Cerrado north of Minas Gerais - BR.$h[electronic resource]
260 $c2023
520 $aO objetivo desse trabalho foi elaborar um modelo para avaliação os vetores da degradação das pastagens no Cerrado norte mineiro. A estrutura metodológica foi baseada em: I) mapeamento do índice de degradação de pastagens (IDP) por meio de técnicas de sensoriamento remoto, II) montagem de um banco de dados com variáveis preditoras representando os aspectos socioeconômicos, de relevo e climáticos, e III) elaboração de um modelo para avaliação dos vetores da degradação das pastagens com regressão linear múltipla.
650 $aDegradation
650 $aRemote sensing
650 $aCerrado
650 $aSensoriamento Remoto
653 $aDegradação de pastagem
653 $aDegradation index of pastures
653 $aÍndice de degradação de pastagens
653 $aPasture degradation index
653 $aSavana
653 $aSavannah
653 $aVetores de degradação de pastagens
700 1 $aSENA-SOUZA, J. P.
700 1 $aSOUZA, C. M. P.
700 1 $aSILVA, C. R. da
700 1 $aBOLFE, E. L.
700 1 $aCHAGAS-REIS, C. C.
700 1 $aLEITE, M. E.
773 $tRA´EGA: o Espaço Geográfico em Análise$gv. 57, p. 66-80, 2023.
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