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| Registros recuperados : 7 | |
| 5. |  | LIMA, J. de F.; SANTOS, U. R. A. dos; CASTILHO, C. de L.; MATOS, C. S.; SILVA, D. R. da; MORAES, R. Parâmetros de qualidade de água no cultivo de tambaqui e alface em sistema de aquaponia. In: JORNADA CIENTÍFICA DA EMBRAPA AMAPÁ, 4., 2018, Macapá. Resumos... Macapá: Embrapa Amapá, 2019. p. 26. Editores técnicos: Adilson Lopes Lima e Ricardo Adaime.| Biblioteca(s): Embrapa Amapá. |
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| 6. | | COSTA, D. P. da; CASTILHO, C. de L.; SANTOS, U. R. A. dos; GEMAQUE, T. C.; DAMASCENO, L. F.; LIMA, J. de F.; MIRANDA FILHO, K. C. Effect of dietary carotenoids on reproducers of Amazon River prawn Macrobrachium amazonicum. Part 1: metabolism,morphometric / zootechnical indexes, body composition and gametes. Journal of Agricultural Studies, v. 9, n. 2, p. 32-56, 2021.| Biblioteca(s): Embrapa Amapá. |
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| 7. | | COSTA, D. P. da; CASTILHO, C. de L.; SANTOS, U. R. A. dos; GEMAQUE, T. C.; DAMASCENO, L. F.; LIMA, J. de F.; MIRANDA FILHO, K. C. Effect of dietary carotenoids on reproducers of Amazon River prawn Macrobrachium amazonicum. Part 2: external coloration, accumulation of astaxanthinin dody tissues and pigment stability in feed. Journal of Agricultural Studies, v. 9, n. 2, p. 57-72, 2021.| Biblioteca(s): Embrapa Amapá. |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
24/01/2018 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PITOMBO, L. M.; CANTARELLA, H.; PACKER, A. P.; RAMOS, N. P.; CARMO, J. B. do. |
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Afiliação: |
LEONARDO MACHADO PITOMBO, IAC; HEITOR CANTARELLA, IAC; ANA PAULA CONTADOR PACKER, CNPMA; NILZA PATRICIA RAMOS, CNPMA; JANAINA BRAGA DO CARMO, UFSCar. |
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Título: |
Straw preservation reduced total N2O emissions from a sugarcane field. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Soil Use and Management, v. 33, n. 4, p. 583-594, 2017. |
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DOI: |
http://dx.doi.org/10.1111/sum.12384 |
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Idioma: |
Inglês |
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Conteúdo: |
Post-harvest biomass can be used as feedstock for energy production and alter N2O emissions from the soil, which is among the main issues determining bioethanol sustainability. To assess the effects of sugarcane straw return on gas emissions, we established a field experiment in which 0, 50, 75 or 100% (0, 5.65, 8.47 and 11.30 Mg/ha dry biomass, respectively) of the crop residues (straw) was left in the field during the first two ratoon crops. As fertilizer is applied in bands to sugarcane, we also investigated the contribution of different positions to the N2O emissions within the field. There was an interactive effect between straw and inorganic fertilizer, leading to a nonlinear effect of crop residues on the fertilizer emission factor (EF). However, straw consistently reduced N2O emissions from the field, acting mainly in the unfertilized areas in the field (P < 0.05). We observed that considering the typical EF used in the literature, the N2O-N emissions attributed to fertilizer ranged from 0.19 to 0.79 kg/ha, while the total emissions ranged from 3.3 to 5.2 kg/ha, from the highest amount of straw to the lowest. We conclude that overall, the fertilizer EF is not as relevant as the total emissions, based on this and other studies. Consequently, management practices might be more effective in improving the GHG balance than changing inorganic fertilizer use. We conclude that keeping up to 11 Mg/ha of straw with a large C:N ratio (>100:1) on site might increase sugarcane production sustainability by reducing the greenhouse gas emissions from the field. MenosPost-harvest biomass can be used as feedstock for energy production and alter N2O emissions from the soil, which is among the main issues determining bioethanol sustainability. To assess the effects of sugarcane straw return on gas emissions, we established a field experiment in which 0, 50, 75 or 100% (0, 5.65, 8.47 and 11.30 Mg/ha dry biomass, respectively) of the crop residues (straw) was left in the field during the first two ratoon crops. As fertilizer is applied in bands to sugarcane, we also investigated the contribution of different positions to the N2O emissions within the field. There was an interactive effect between straw and inorganic fertilizer, leading to a nonlinear effect of crop residues on the fertilizer emission factor (EF). However, straw consistently reduced N2O emissions from the field, acting mainly in the unfertilized areas in the field (P < 0.05). We observed that considering the typical EF used in the literature, the N2O-N emissions attributed to fertilizer ranged from 0.19 to 0.79 kg/ha, while the total emissions ranged from 3.3 to 5.2 kg/ha, from the highest amount of straw to the lowest. We conclude that overall, the fertilizer EF is not as relevant as the total emissions, based on this and other studies. Consequently, management practices might be more effective in improving the GHG balance than changing inorganic fertilizer use. We conclude that keeping up to 11 Mg/ha of straw with a large C:N ratio (>100:1) on site might increase sugarcane pr... Mostrar Tudo |
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Palavras-Chave: |
Emissão de gasesNitrogen; Óxido nitroso; Sustainability. |
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Thesagro: |
Cana de açúcar; Nitrogênio; Palha. |
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Thesaurus NAL: |
bioenergy; Greenhouse gas emissions; Nitrous oxide; soil; Straw; Sugarcane. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02488naa a2200325 a 4500
001 2086266
005 2019-10-30
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1111/sum.12384$2DOI
100 1 $aPITOMBO, L. M.
245 $aStraw preservation reduced total N2O emissions from a sugarcane field.$h[electronic resource]
260 $c2017
520 $aPost-harvest biomass can be used as feedstock for energy production and alter N2O emissions from the soil, which is among the main issues determining bioethanol sustainability. To assess the effects of sugarcane straw return on gas emissions, we established a field experiment in which 0, 50, 75 or 100% (0, 5.65, 8.47 and 11.30 Mg/ha dry biomass, respectively) of the crop residues (straw) was left in the field during the first two ratoon crops. As fertilizer is applied in bands to sugarcane, we also investigated the contribution of different positions to the N2O emissions within the field. There was an interactive effect between straw and inorganic fertilizer, leading to a nonlinear effect of crop residues on the fertilizer emission factor (EF). However, straw consistently reduced N2O emissions from the field, acting mainly in the unfertilized areas in the field (P < 0.05). We observed that considering the typical EF used in the literature, the N2O-N emissions attributed to fertilizer ranged from 0.19 to 0.79 kg/ha, while the total emissions ranged from 3.3 to 5.2 kg/ha, from the highest amount of straw to the lowest. We conclude that overall, the fertilizer EF is not as relevant as the total emissions, based on this and other studies. Consequently, management practices might be more effective in improving the GHG balance than changing inorganic fertilizer use. We conclude that keeping up to 11 Mg/ha of straw with a large C:N ratio (>100:1) on site might increase sugarcane production sustainability by reducing the greenhouse gas emissions from the field.
650 $abioenergy
650 $aGreenhouse gas emissions
650 $aNitrous oxide
650 $asoil
650 $aStraw
650 $aSugarcane
650 $aCana de açúcar
650 $aNitrogênio
650 $aPalha
653 $aEmissão de gasesNitrogen
653 $aÓxido nitroso
653 $aSustainability
700 1 $aCANTARELLA, H.
700 1 $aPACKER, A. P.
700 1 $aRAMOS, N. P.
700 1 $aCARMO, J. B. do
773 $tSoil Use and Management$gv. 33, n. 4, p. 583-594, 2017.
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