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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Gado de Leite; Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. |
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Data corrente: |
20/10/2020 |
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Data da última atualização: |
28/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, W. de M.; ALVES, B. J. R.; URQUIAGA, S.; PACHECO, E. P.; BARROS, I. de; FERNANDES, M. F.; BATISTA, J. N.; BENDER, E. P.; SOUZA, H. N. de; JANTALIA, C. P. |
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Afiliação: |
WADSON de MENEZES SANTOS, Universidade Federal Rural do Rio de Janeiro; BRUNO JOSE RODRIGUES ALVES, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; EDSON PATTO PACHECO, CPATC; INACIO DE BARROS, CNPGL; MARCELO FERREIRA FERNANDES, CPATC; JOSIMAR NOGUEIRA BATISTA, Universade Federal Rural do Rio de Janeiro; EDUARDO PIRES BENDER, Universidade Federal de Sergipe; HERALDO NAMORATO de SOUZA, Petrobrás; CLAUDIA POZZI JANTALIA, CNPAB. |
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Título: |
Ammonia volatilization and yield of corn fertilized with different nitrogen sources in the Brazilian semiarid. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 55, e01036, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract - The objective of this work was to evaluate the effect of the use of different nitrogen fertilizers on N losses by NH3 volatilization and on the grain yield of a corn (Zea mays) crop grown in the semiarid region of the state of Sergipe, Brazil. Corn was managed under rainfed conditions and conventional tillage. The fertilization treatments were: sulfur-coated urea (SU) and organo-mineral-coated urea (OMU). Regular urea and ammonium sulfate (AS) were also included as a reference of N sources of high and low NH3-volatilization potential, as well as a control without N fertilization. The N sources were applied to the soil surface at a rate of 150 kg ha-1 N as side-dressing at the V5 growth stage of corn. The experiment was carried out in 2015 and repeated in 2016. Losses of N through NH3 volatilization differed among the N sources in the two study years, with AS presenting the lowest N losses and regular urea, the highest. In the area treated with OMU, losses by NH3 volatilization were consistently controlled, showing a reduction of 74 and 67% in relation to that of regular urea in both years. SU, however, only mitigated NH3-N losses in 2015, increasing them in 2016, compared with regular urea. Corn plant grain yield and N status, assessed by the index leaf, did not clearly reflect N losses by NH3 volatilization. For the semiarid of Sergipe, OMU is the best ureabased fertilizer to mitigate N losses by NH3 volatilization, and the use of AS is an alternative to increase corn yield and eliminate N losses as NH3. Resumo ? O objetivo deste trabalho foi avaliar o efeito do uso de diferentes adubos nitrogenados nas perdas de N por volatilização de NH3 e no rendimento de grãos de cultura de milho (Zea mays) na região semiárida do estado de Sergipe. O milho foi manejado sob condições de sequeiro e preparo convencional. Os tratamentos de fertilização foram: ureia revestida com enxofre (SU) e ureia organomineral (OMU). Também foram incluídos ureia comercial e sulfato de amônio (SA) como referência de fontes de N com alto e baixo potencial de volatilização de NH3, além de um controle não fertilizado com N. As fontes de N foram aplicadas na superfície do solo a uma taxa de 150 kg ha-1 de N, como cobertura, no estádio V5 de crescimento do milho. O experimento foi realizado em 2015 e repetido em 2016. As perdas de N pela volatilização de NH3 foram diferentes entre as fontes de N nos dois anos de estudo, com SA tendo apresentado a menor perda de N e ureia comercial, a maior. Na área tratada com OMU, as perdas pela volatilização de NH3 foram controladas de forma consistente, tendo mostrado redução de 74 e 67% em relação à da ureia regular em ambos os anos. SU, no entanto, apenas mitigou as perdas de NH3 em 2015, tendo as aumentado em 2016, em comparação à ureia comercial. O rendimento de grãos e o status de N da planta de milho, avaliados pela folha-índice, não refletiram claramente a perda de N pela volatilização de NH3. Para o semiárido de Sergipe, OMU é o melhor fertilizante à base de ureia para mitigar as perdas de N pela volatilização de NH3, e o uso de SA é uma alternativa para aumentar o rendimento do milho e eliminar as perdas de N como NH3. MenosAbstract - The objective of this work was to evaluate the effect of the use of different nitrogen fertilizers on N losses by NH3 volatilization and on the grain yield of a corn (Zea mays) crop grown in the semiarid region of the state of Sergipe, Brazil. Corn was managed under rainfed conditions and conventional tillage. The fertilization treatments were: sulfur-coated urea (SU) and organo-mineral-coated urea (OMU). Regular urea and ammonium sulfate (AS) were also included as a reference of N sources of high and low NH3-volatilization potential, as well as a control without N fertilization. The N sources were applied to the soil surface at a rate of 150 kg ha-1 N as side-dressing at the V5 growth stage of corn. The experiment was carried out in 2015 and repeated in 2016. Losses of N through NH3 volatilization differed among the N sources in the two study years, with AS presenting the lowest N losses and regular urea, the highest. In the area treated with OMU, losses by NH3 volatilization were consistently controlled, showing a reduction of 74 and 67% in relation to that of regular urea in both years. SU, however, only mitigated NH3-N losses in 2015, increasing them in 2016, compared with regular urea. Corn plant grain yield and N status, assessed by the index leaf, did not clearly reflect N losses by NH3 volatilization. For the semiarid of Sergipe, OMU is the best ureabased fertilizer to mitigate N losses by NH3 volatilization, and the use of AS is an alternative to increase... Mostrar Tudo |
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Thesagro: |
Adubação; Adubo; Amônia; Fertilizante; Milho; Nitrogênio; Sulfato de Amônia; Uréia; Zea Mays. |
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Thesaurus Nal: |
Ammonium sulfate; Corn; Fertilizers; Nitrogen; Nitrogen fertilizers; Urea fertilizers. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220078/1/PAB-Wadson.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216855/1/Ammonia-volatilization-yield.pdf
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Marc: |
LEADER 04347naa a2200409 a 4500
001 2125954
005 2020-10-28
008 2020 bl uuuu u00u1 u #d
100 1 $aSANTOS, W. de M.
245 $aAmmonia volatilization and yield of corn fertilized with different nitrogen sources in the Brazilian semiarid.$h[electronic resource]
260 $c2020
520 $aAbstract - The objective of this work was to evaluate the effect of the use of different nitrogen fertilizers on N losses by NH3 volatilization and on the grain yield of a corn (Zea mays) crop grown in the semiarid region of the state of Sergipe, Brazil. Corn was managed under rainfed conditions and conventional tillage. The fertilization treatments were: sulfur-coated urea (SU) and organo-mineral-coated urea (OMU). Regular urea and ammonium sulfate (AS) were also included as a reference of N sources of high and low NH3-volatilization potential, as well as a control without N fertilization. The N sources were applied to the soil surface at a rate of 150 kg ha-1 N as side-dressing at the V5 growth stage of corn. The experiment was carried out in 2015 and repeated in 2016. Losses of N through NH3 volatilization differed among the N sources in the two study years, with AS presenting the lowest N losses and regular urea, the highest. In the area treated with OMU, losses by NH3 volatilization were consistently controlled, showing a reduction of 74 and 67% in relation to that of regular urea in both years. SU, however, only mitigated NH3-N losses in 2015, increasing them in 2016, compared with regular urea. Corn plant grain yield and N status, assessed by the index leaf, did not clearly reflect N losses by NH3 volatilization. For the semiarid of Sergipe, OMU is the best ureabased fertilizer to mitigate N losses by NH3 volatilization, and the use of AS is an alternative to increase corn yield and eliminate N losses as NH3. Resumo ? O objetivo deste trabalho foi avaliar o efeito do uso de diferentes adubos nitrogenados nas perdas de N por volatilização de NH3 e no rendimento de grãos de cultura de milho (Zea mays) na região semiárida do estado de Sergipe. O milho foi manejado sob condições de sequeiro e preparo convencional. Os tratamentos de fertilização foram: ureia revestida com enxofre (SU) e ureia organomineral (OMU). Também foram incluídos ureia comercial e sulfato de amônio (SA) como referência de fontes de N com alto e baixo potencial de volatilização de NH3, além de um controle não fertilizado com N. As fontes de N foram aplicadas na superfície do solo a uma taxa de 150 kg ha-1 de N, como cobertura, no estádio V5 de crescimento do milho. O experimento foi realizado em 2015 e repetido em 2016. As perdas de N pela volatilização de NH3 foram diferentes entre as fontes de N nos dois anos de estudo, com SA tendo apresentado a menor perda de N e ureia comercial, a maior. Na área tratada com OMU, as perdas pela volatilização de NH3 foram controladas de forma consistente, tendo mostrado redução de 74 e 67% em relação à da ureia regular em ambos os anos. SU, no entanto, apenas mitigou as perdas de NH3 em 2015, tendo as aumentado em 2016, em comparação à ureia comercial. O rendimento de grãos e o status de N da planta de milho, avaliados pela folha-índice, não refletiram claramente a perda de N pela volatilização de NH3. Para o semiárido de Sergipe, OMU é o melhor fertilizante à base de ureia para mitigar as perdas de N pela volatilização de NH3, e o uso de SA é uma alternativa para aumentar o rendimento do milho e eliminar as perdas de N como NH3.
650 $aAmmonium sulfate
650 $aCorn
650 $aFertilizers
650 $aNitrogen
650 $aNitrogen fertilizers
650 $aUrea fertilizers
650 $aAdubação
650 $aAdubo
650 $aAmônia
650 $aFertilizante
650 $aMilho
650 $aNitrogênio
650 $aSulfato de Amônia
650 $aUréia
650 $aZea Mays
700 1 $aALVES, B. J. R.
700 1 $aURQUIAGA, S.
700 1 $aPACHECO, E. P.
700 1 $aBARROS, I. de
700 1 $aFERNANDES, M. F.
700 1 $aBATISTA, J. N.
700 1 $aBENDER, E. P.
700 1 $aSOUZA, H. N. de
700 1 $aJANTALIA, C. P.
773 $tPesquisa Agropecuária Brasileira$gv. 55, e01036, 2020.
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Esconder MarcMostrar Marc Completo |
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
25/10/2013 |
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Data da última atualização: |
19/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA FIALHO, J.; AGUIAR, M. I. de; MAIA, L. dos S.; MAGALHÃES, R. B.; ARAÚJO, F. da C. S. de; CAMPANHA, M. M.; OLIVEIRA, T. S. de. |
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Afiliação: |
MONICA MATOSO CAMPANHA, CNPMS. |
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Título: |
Soil quality, resistance and resilience in traditional agricultural and agroforestry ecosystems in Brazil's semiarid region. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 8, n. 40, p. 5020-5031, Oct. 2013. |
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DOI: |
10.5897/AJAR2013.6712 |
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Idioma: |
Inglês |
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Conteúdo: |
Agroforestry represents an alternative to traditional agricultural systems in semiarid regions, since it effectively provides soil coverage and improves the amount and quality of soil organic matter. The sustainability of agricultural systems can be assessed by evaluating soil quality, resistance and resilience. Therefore, this work evaluated soil quality, resistance and resilience under traditional cropping and agroforestry systems. The study took place at an experimental station in Brazil’s semiarid northeast region. Studied land use systems include agrosilvopastoral, silvopastoral and traditional cropping, as well as areas under traditional fallow for six and nine years and unaltered ecosystem. Small trenches were dug randomly to collect soil from three depth increments. Soil Quality (SQ) was assessed using chemical, physical and biological indicators. Based on these indicators, resistance, resilience and soil quality indices were calculated. The index quality of the soil was generated using soil water retention, nutrient supply and biological activity promotion functions. Comparisons of index means indicate that agroforests maintained SQ, while traditional fallow systems resulted in improved SQ up to levels similar to the unaltered ecosystem. Traditional cropping lead to a reduction in SQ, resistance and resilience. Agroforestry systems are sustainable. Fallow can improve soil quality, soil resistance and resilience. |
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Palavras-Chave: |
Agrossilvipastoril; Silvipastoril; Sustentabilidade agrícola. |
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Thesagro: |
Manejo do solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/91497/1/Soil-quality.pdf
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Marc: |
LEADER 02287naa a2200253 a 4500
001 1969438
005 2017-07-19
008 2013 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2013.6712$2DOI
100 1 $aSILVA FIALHO, J.
245 $aSoil quality, resistance and resilience in traditional agricultural and agroforestry ecosystems in Brazil's semiarid region.$h[electronic resource]
260 $c2013
520 $aAgroforestry represents an alternative to traditional agricultural systems in semiarid regions, since it effectively provides soil coverage and improves the amount and quality of soil organic matter. The sustainability of agricultural systems can be assessed by evaluating soil quality, resistance and resilience. Therefore, this work evaluated soil quality, resistance and resilience under traditional cropping and agroforestry systems. The study took place at an experimental station in Brazil’s semiarid northeast region. Studied land use systems include agrosilvopastoral, silvopastoral and traditional cropping, as well as areas under traditional fallow for six and nine years and unaltered ecosystem. Small trenches were dug randomly to collect soil from three depth increments. Soil Quality (SQ) was assessed using chemical, physical and biological indicators. Based on these indicators, resistance, resilience and soil quality indices were calculated. The index quality of the soil was generated using soil water retention, nutrient supply and biological activity promotion functions. Comparisons of index means indicate that agroforests maintained SQ, while traditional fallow systems resulted in improved SQ up to levels similar to the unaltered ecosystem. Traditional cropping lead to a reduction in SQ, resistance and resilience. Agroforestry systems are sustainable. Fallow can improve soil quality, soil resistance and resilience.
650 $aManejo do solo
653 $aAgrossilvipastoril
653 $aSilvipastoril
653 $aSustentabilidade agrícola
700 1 $aAGUIAR, M. I. de
700 1 $aMAIA, L. dos S.
700 1 $aMAGALHÃES, R. B.
700 1 $aARAÚJO, F. da C. S. de
700 1 $aCAMPANHA, M. M.
700 1 $aOLIVEIRA, T. S. de
773 $tAfrican Journal of Agricultural Research$gv. 8, n. 40, p. 5020-5031, Oct. 2013.
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Embrapa Milho e Sorgo (CNPMS) |
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