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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
08/10/2020 |
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Data da última atualização: |
08/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUENO, M. V.; CAMPOS, A. D. S. de; SILVA, J. T. da; MASSEY, J.; TIMM, L. C.; FARIA, L. C.; ROEL, A.; PARFITT, J. M. B. |
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Afiliação: |
MARCOS VALLE BUENO, UFPEL; ALEXSSANDRA DAYANE SOARES DE CAMPOS, UFPEL; JAQUELINE TROMBETTA DA SILVA, UFPEL; JOSEPH MASSEY, USDA AGRICULTURAL RESEARCH SERVICE; LUIS CARLOS TIMM, UFPEL; LESSANDRO COLL FARIA, UFPEL; ÁLVARO ROEL, NATIONAL INSTITUTE OF AGRICULTURAL RESEARCH OF URUGUAY; JOSE MARIA BARBAT PARFITT, CPACT. |
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Título: |
Improving the drainage and irrigation efficiencyof lowland soils: land-formingoptions for southern Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Irrigation and Drainage Engineering, v. 146, n. 8, 04020019, Aug. 2020. |
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Páginas: |
8 p. |
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Idioma: |
Inglês |
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Conteúdo: |
Land leveling is used to correct soil surface irregularities to improve surface drainage and irrigation. It also makes the area moremanageable for an array of agricultural activities such as planting and harvesting. The objective of this work was to evaluate two designs ofland forming, one aimed at optimizing drainage and the other at optimizing surface irrigation, using fields with reliefs typical of the lowlandsof southern Brazil. Seven commercial rice fields, ranging in size from 7 to 26 ha, were randomly selected and digital elevation designsgenerated for each. Land-leveling projects were developed using three designs: uniform slope (US) (control), land forming?drainage(LFD), and land forming?irrigation (LFI). Performance comparisons between the designs were evaluated through impacts on soil movement(SM), maximum cut in 99% of the area (MC), cumulative length of levees (LL), and total number of levees (NL). Results indicate that bothLFD and LFI designs would reduce costs and require less soil disturbance compared to leveling to uniform slopes. LFD would require lesssoil movement and lower maximum cuts than LFI. However, LFI would reduce the lengths and numbers of rice levees that could have long-term economic and agronomic benefits not captured in these analyses. These results demonstrate that all land-leveling and land-formingalternatives should be thoroughly examined before undertaking field operations. Study outcomes will be useful to engineers and producers inevaluating options to improve the agricultural productivity of lowlands in southern Brazil, a region of national and international significance. MenosLand leveling is used to correct soil surface irregularities to improve surface drainage and irrigation. It also makes the area moremanageable for an array of agricultural activities such as planting and harvesting. The objective of this work was to evaluate two designs ofland forming, one aimed at optimizing drainage and the other at optimizing surface irrigation, using fields with reliefs typical of the lowlandsof southern Brazil. Seven commercial rice fields, ranging in size from 7 to 26 ha, were randomly selected and digital elevation designsgenerated for each. Land-leveling projects were developed using three designs: uniform slope (US) (control), land forming?drainage(LFD), and land forming?irrigation (LFI). Performance comparisons between the designs were evaluated through impacts on soil movement(SM), maximum cut in 99% of the area (MC), cumulative length of levees (LL), and total number of levees (NL). Results indicate that bothLFD and LFI designs would reduce costs and require less soil disturbance compared to leveling to uniform slopes. LFD would require lesssoil movement and lower maximum cuts than LFI. However, LFI would reduce the lengths and numbers of rice levees that could have long-term economic and agronomic benefits not captured in these analyses. These results demonstrate that all land-leveling and land-formingalternatives should be thoroughly examined before undertaking field operations. Study outcomes will be useful to engineers and producers inevaluat... Mostrar Tudo |
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Thesagro: |
Agricultura de Precisão; Drenagem; Nivelamento da Terra; Solo Hidromórfico. |
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Categoria do assunto: |
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Marc: |
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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| Registros recuperados : 4 | |
| 1. |  | LOBO, V. L. S.; UTUMI, M. M.; PEIXOTO, O. M.; CASTRO, E. M.; BRITO, A. M. Incidência de fungos causadores da mancha de grãos em arroz produzido nos estados de Goiás, Mato Grosso e Rondônia. Fitopatologia Brasileira, v. 31, p. S131, ago. 2006. Suplemento, ref. 0039. Edição de resumos do XXXIX Congresso Brasileiro de Fitopatologia, Salvador, ago. 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 2. | | SILVA, F. R.; RESENDE, M. M.; UTUMI, M. M.; PEIXOTO, O. M.; FILIPPI, M. C.; PRABHU, A. S.; SILVA-LOBO, V. L. Mancha-de-grãos em arroz de terras altas nos Estados de Goiás e Rondônia. Tropical Plant Pathology, Brasília, DF, v. 34, p. S124, ago. 2009. Suplemento, ref. 448. Edição dos Resumos do XLII do Congresso Brasileiro de Fitopatologia, Rio de Janeiro, RJ, ago. 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 3. | | FAGUNDES, P. R. R.; MAGALHÃES JUNIOR, A. M. de; NUNES, C. D. M.; ANDRES, A.; PETRINI, J. A.; FRANCO, D. F.; MOURA NETO, F. P.; PEIXOTO, O. de M.; SEVERO, A. C. M.; TURATTI, M. da R.; FONSECA, G. de M. da; HAUSEN, L. J. de O. von. Avaliação de cultivares de arroz irrigado da Embrapa, no Rio Grande do Sul, nas safras 2007/08 e 2008/09. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 6., 2009, Porto Alegre. Estresses e sustentabilidade: desafios para a lavoura arrozeira: anais. Porto Alegre: Palotti, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 4. | | FAGUNDES, P. R. R.; RANGEL, P. H. N.; MAGALHÃES JÚNIOR, A. M. de; FRANCO, D. F.; CUTRIM, V. dos A.; NEVES, P. de C. F.; MOURA NETO, F. P.; PEIXOTO, O.; CASTRO, E. M. de; PETRINI, J. A.; ANDRES, A.; NUNES, C. D.; MARTINS, J. F. da S.; GOMES, A. a S.; VERNETTI JUNIOR, F. de J.; AZAMBUJA, I. H. V.; FONSECA, J.; BRONDANI, C.; LOBO, V. L.; SANTOS, A. B. dos; BASSANELO, P. Z.; SOARES, R. C. BRS Querência e BRS Fronteira, novas cultivares para a orizicultura gaúcha. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 4.; REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 26., 2005, Santa Maria, RS. Anais... Santa Maria, RS: Orium, 2005. v. 1. p. 282-284.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 4 | |
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