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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
21/05/2021 |
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Data da última atualização: |
21/05/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ABAURRE, G. W; ALONSO, J. M.; SAGGIN JUNIOR, O. J.; FARIA, S. M. de. |
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Afiliação: |
GUSTAVO WYSE ABAURRE, UFRRJ; JORGE MAKHLOUTA ALONSO, UFRRJ; ORIVALDO JOSE SAGGIN JUNIOR, CNPAB; SERGIO MIANA DE FARIA, CNPAB. |
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Título: |
Sewage sludge compared with other substrates in the inoculation, growth, and tolerance to water stress of Samanea saman. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Water, v. 13, 1306, 2021. |
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ISSN: |
2073-4441 |
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DOI: |
https://doi.org/10.3390/w13091306 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated the initial growth and tolerance to water stress after planting Samanea saman seedlings produced with different substrates and inoculation patterns. The experiment used a factorial design (3 × 3), with three substrates: standard (67% subsoil + 33% cattle manure), a commercial substrate (composed mainly of peat), and treated sewage sludge; and three inoculation patterns: control (no inoculation), fertilized (no inoculation + chemical fertilization), and inoculation with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi. The seedlings were planted in plastic pots inside a greenhouse. They received irrigation after planting and were submitted to water deficit for 35 days, followed by rehydration for 31 days. The inoculation promoted higher height and biomass for seedlings produced in the standard substrate. In the sludge, the roots biomass decreased when fertilized or inoculated. Seedlings grown in sludge showed higher height and biomass before planting and at the end of the experiment. Although, after rehydration, the height increment was similar for the sludge and the standard substrate. Seedlings grown with the commercial substrate are not recommended for planting sites subjected to water deficit. The standard substrate with inoculation and the sludge without inoculation or fertilization produced seedlings that showed better recovery and growth after water deficit. |
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Palavras-Chave: |
Degraded lands restoration; Leaf water; Potential biosolids. |
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Thesaurus Nal: |
Mycorrhizae. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02123naa a2200229 a 4500
001 2131949
005 2021-05-21
008 2021 bl uuuu u00u1 u #d
022 $a2073-4441
024 7 $ahttps://doi.org/10.3390/w13091306$2DOI
100 1 $aABAURRE, G. W
245 $aSewage sludge compared with other substrates in the inoculation, growth, and tolerance to water stress of Samanea saman.$h[electronic resource]
260 $c2021
520 $aThis study evaluated the initial growth and tolerance to water stress after planting Samanea saman seedlings produced with different substrates and inoculation patterns. The experiment used a factorial design (3 × 3), with three substrates: standard (67% subsoil + 33% cattle manure), a commercial substrate (composed mainly of peat), and treated sewage sludge; and three inoculation patterns: control (no inoculation), fertilized (no inoculation + chemical fertilization), and inoculation with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi. The seedlings were planted in plastic pots inside a greenhouse. They received irrigation after planting and were submitted to water deficit for 35 days, followed by rehydration for 31 days. The inoculation promoted higher height and biomass for seedlings produced in the standard substrate. In the sludge, the roots biomass decreased when fertilized or inoculated. Seedlings grown in sludge showed higher height and biomass before planting and at the end of the experiment. Although, after rehydration, the height increment was similar for the sludge and the standard substrate. Seedlings grown with the commercial substrate are not recommended for planting sites subjected to water deficit. The standard substrate with inoculation and the sludge without inoculation or fertilization produced seedlings that showed better recovery and growth after water deficit.
650 $aMycorrhizae
653 $aDegraded lands restoration
653 $aLeaf water
653 $aPotential biosolids
700 1 $aALONSO, J. M.
700 1 $aSAGGIN JUNIOR, O. J.
700 1 $aFARIA, S. M. de
773 $tWater$gv. 13, 1306, 2021.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
13/12/2021 |
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Data da última atualização: |
13/12/2021 |
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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: |
DEMEU, F. A.; LOPES, M. A.; PALHARES, J. C. P.; LIMA, A. L. R. DE; CARVALHO, F. DE M.; LOPES FILHO, M. A.; DEMEU, A. A.; VIDAL, D. A.; LIMA, M. DE L.; BARBARI, M. |
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Afiliação: |
FABIANA ALVES DEMEU, IFRO; MARCOS AURÉLIO LOPES, UFLA; JULIO CESAR PASCALE PALHARES, CPPSE; ANDRÉ LUIS RIBEIRO DE LIMA, UFLA; FRANCISVAL DE MELO CARVALHO, UFLA; MARCOS AURÉLIO LOPES FILHO, USP; ANDRÉIA ALVES DEMEU, Self-employed Zootechnician, Porto Velho, RO; DOUGLAS ALVES VIDAL, Self-employed Agronomist, Lavras, MG; MARINA DE LUCA LIMA, Self-employed Veterinary Physician, Lavras, MG; MATTEO BARBARI, Università Degli Studi Di Firenze. |
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Título: |
Economic feasibility of implementing an infrastructure for collecting rainwater from the roof of free-stall sheds. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Semina, v.42, n.2, p.877-890, mar./abr. 2021. |
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ISSN: |
1679-0359 |
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DOI: |
10.5433/1679-0359.2021v42n2p877 |
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Idioma: |
Português |
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Conteúdo: |
This study aimed to analyze the economic feasibility of implementing and using the necessary infrastructure to collect rainwater from the roof of free-stall sheds in a dairy production system in southern Minas Gerais, Brazil. Specifically, the total cost (TC), total operating cost (TOC), and actual operating cost (AOC) of a cubic meter of rainwater and the break-even point in cubic meters were estimated. The research was conducted from January to December 2017 on a property located in the south of Minas Gerais. The following MOP scenarios were analyzed: most likely (Scenario 1), optimistic (scenario 2), and pessimistic (scenario 3). The grant value of the Das Velhas River basin was considered for the most likely scenario, as it has the most similar value with that of the basin surrounding the Furnas reservoir, in which the property is inserted. The grant value for water collection and consumption from the Paraíba River basin was considered in Scenario 2, as this Federal basin has the lowest grant value. The grant value for water collection and consumption from the Piracicaba, Jundiaí, and Capivari river basins was considered in Scenario 3, as these basins have the highest prices for the cubic meter of the collected and consumed water. The implementation of the infrastructure for collecting rainwater from the roof of free-stall sheds under the studied conditions was economically unfeasible for all scenarios, with negative net present values (NPV). Simple and discounted paybacks were longer than the proposed horizon. The internal rate of return (IRR) could not be estimated due to the negative values of the net cash flow. The benefit-cost ratios (BCR) were unsatisfactory (lower than 1). The TC values for rainwater collection from the roof of free-stall sheds were R$ 23,206.59 and R$ 20,489.25 for scenarios with interest rates of 8.50 and 6.99%, respectively, while the TOC value was R$ 7,850.30 for all analyzed scenarios. The unit values for TOC and AOC were R$ 9.9024/m3 and R$ 1.3060/m3 of collected water, respectively. The break-even point could not be estimated in the studied scenarios, as the variable cost per cubic meter of water collected from the roof of the free-stall shed was higher than the grant value charged by the water management committees of the different studied basins. MenosThis study aimed to analyze the economic feasibility of implementing and using the necessary infrastructure to collect rainwater from the roof of free-stall sheds in a dairy production system in southern Minas Gerais, Brazil. Specifically, the total cost (TC), total operating cost (TOC), and actual operating cost (AOC) of a cubic meter of rainwater and the break-even point in cubic meters were estimated. The research was conducted from January to December 2017 on a property located in the south of Minas Gerais. The following MOP scenarios were analyzed: most likely (Scenario 1), optimistic (scenario 2), and pessimistic (scenario 3). The grant value of the Das Velhas River basin was considered for the most likely scenario, as it has the most similar value with that of the basin surrounding the Furnas reservoir, in which the property is inserted. The grant value for water collection and consumption from the Paraíba River basin was considered in Scenario 2, as this Federal basin has the lowest grant value. The grant value for water collection and consumption from the Piracicaba, Jundiaí, and Capivari river basins was considered in Scenario 3, as these basins have the highest prices for the cubic meter of the collected and consumed water. The implementation of the infrastructure for collecting rainwater from the roof of free-stall sheds under the studied conditions was economically unfeasible for all scenarios, with negative net present values (NPV). Simple and discounted paybac... Mostrar Tudo |
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Palavras-Chave: |
Bovinocultura leiteira; Dairy cattle farming; Indicadores de rentabilidade; Profitability indicators; Reuse; Scenario analysis; Sustainability; Sustentabilidade. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229010/1/EconomicFeasibilityImplementing.pdf
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Marc: |
LEADER 03376naa a2200349 a 4500
001 2137656
005 2021-12-13
008 2021 bl uuuu u00u1 u #d
022 $a1679-0359
024 7 $a10.5433/1679-0359.2021v42n2p877$2DOI
100 1 $aDEMEU, F. A.
245 $aEconomic feasibility of implementing an infrastructure for collecting rainwater from the roof of free-stall sheds.$h[electronic resource]
260 $c2021
520 $aThis study aimed to analyze the economic feasibility of implementing and using the necessary infrastructure to collect rainwater from the roof of free-stall sheds in a dairy production system in southern Minas Gerais, Brazil. Specifically, the total cost (TC), total operating cost (TOC), and actual operating cost (AOC) of a cubic meter of rainwater and the break-even point in cubic meters were estimated. The research was conducted from January to December 2017 on a property located in the south of Minas Gerais. The following MOP scenarios were analyzed: most likely (Scenario 1), optimistic (scenario 2), and pessimistic (scenario 3). The grant value of the Das Velhas River basin was considered for the most likely scenario, as it has the most similar value with that of the basin surrounding the Furnas reservoir, in which the property is inserted. The grant value for water collection and consumption from the Paraíba River basin was considered in Scenario 2, as this Federal basin has the lowest grant value. The grant value for water collection and consumption from the Piracicaba, Jundiaí, and Capivari river basins was considered in Scenario 3, as these basins have the highest prices for the cubic meter of the collected and consumed water. The implementation of the infrastructure for collecting rainwater from the roof of free-stall sheds under the studied conditions was economically unfeasible for all scenarios, with negative net present values (NPV). Simple and discounted paybacks were longer than the proposed horizon. The internal rate of return (IRR) could not be estimated due to the negative values of the net cash flow. The benefit-cost ratios (BCR) were unsatisfactory (lower than 1). The TC values for rainwater collection from the roof of free-stall sheds were R$ 23,206.59 and R$ 20,489.25 for scenarios with interest rates of 8.50 and 6.99%, respectively, while the TOC value was R$ 7,850.30 for all analyzed scenarios. The unit values for TOC and AOC were R$ 9.9024/m3 and R$ 1.3060/m3 of collected water, respectively. The break-even point could not be estimated in the studied scenarios, as the variable cost per cubic meter of water collected from the roof of the free-stall shed was higher than the grant value charged by the water management committees of the different studied basins.
653 $aBovinocultura leiteira
653 $aDairy cattle farming
653 $aIndicadores de rentabilidade
653 $aProfitability indicators
653 $aReuse
653 $aScenario analysis
653 $aSustainability
653 $aSustentabilidade
700 1 $aLOPES, M. A.
700 1 $aPALHARES, J. C. P.
700 1 $aLIMA, A. L. R. DE
700 1 $aCARVALHO, F. DE M.
700 1 $aLOPES FILHO, M. A.
700 1 $aDEMEU, A. A.
700 1 $aVIDAL, D. A.
700 1 $aLIMA, M. DE L.
700 1 $aBARBARI, M.
773 $tSemina$gv.42, n.2, p.877-890, mar./abr. 2021.
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Embrapa Pecuária Sudeste (CPPSE) |
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