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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: |
LEADER 02440naa a2200265 a 4500
001 2125370
005 2020-10-08
008 2020 bl uuuu u00u1 u #d
100 1 $aBUENO, M. V.
245 $aImproving the drainage and irrigation efficiencyof lowland soils$bland-formingoptions for southern Brazil.$h[electronic resource]
260 $c2020
300 $a8 p.
520 $aLand 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.
650 $aAgricultura de Precisão
650 $aDrenagem
650 $aNivelamento da Terra
650 $aSolo Hidromórfico
700 1 $aCAMPOS, A. D. S. de
700 1 $aSILVA, J. T. da
700 1 $aMASSEY, J.
700 1 $aTIMM, L. C.
700 1 $aFARIA, L. C.
700 1 $aROEL, A.
700 1 $aPARFITT, J. M. B.
773 $tJournal of Irrigation and Drainage Engineering$gv. 146, n. 8, 04020019, Aug. 2020.
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| 9. |  | STAUT, L. A.; MESQUITA, A. N. de; SILVA, E. C. da. Ensaio preliminar de primeiro ano. In: REUNIÃO DA COMISSÃO CENTRO-SUL-BRASILEIRA DE PESQUISA DE TRIGO, 6., 1990, Campinas. Resultados de pesquisa com trigo - 1989. Dourados: EMBRAPA-UEPAE Dourados, 1990. p. 67-72. (EMBRAPA-UEPAE Dourados. Documentos, 45). Projeto 004.86.025-0 - Competição de cultivares de trigo irrigado.| Biblioteca(s): Embrapa Agropecuária Oeste; Embrapa Trigo. |
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