Combinação de águas doce e salobra para produção de alface hidropônica.
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| Title: | Combinação de águas doce e salobra para produção de alface hidropônica. |
|---|---|
| Alternate Title: | Combination of fresh and brackish waters for hydroponic lettuce production. |
| Authors: | Soares, Tales M.1 talesmiler@gmail.com, Duarte, Sergio N.2 snduarte@esalq.usp.br, Silva, Ênio F. F.3 enio.silva@dtr.ufrpe.br, Jorge, Cristiano A.2 cajorge@esalq.usp.br |
| Source: | Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi. jul2010, Vol. 14 Issue 7, p705-714. 10p. 1 Color Photograph, 4 Charts, 7 Graphs. |
| Subjects: | Salinity, Hydroponics, Lettuce, Brackish waters, Fresh water, Plant nutrients, Evapotranspiration, Simulation methods & models |
| Abstract (English): | Plants of crisphead lettuce cv. Verônica were grown under hydroponic conditions aiming to evaluate two types of combination of brackish and fresh waters: using the brackish waters to prepare nutrient solution (NS) and fresh water to replace the evapotranspiration loss (ETc) (Experiment I) and using the fresh water to prepare NS and the brackish waters to replace the ETc loss (Experiment II). A research structure was built up with 40 experimental units which simulated the nutrient film technique (NFT). The levels of water salinity were 0.585; 1.17; 1.755; 2.925 and 4.095 g L-1 NaCl. The lettuce yield (fresh shoot matter) decreased 10.9 and 3.91% for each unit increase in water salinity (g L-1 NaCl) in Experiments I and II, respectively. According to results obtained with the two types of combination of fresh and brackish waters, the use of brackish waters to replace ETc loss may increase the lettuce yield in comparison to using these waters to prepare the NS. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): | Plantas de alface crespa cv. Verônica foram cultivadas em condição hidropônica objetivando-se avaliar dois tipos de emprego combinado de águas doce e salobras, quais sejam: usar as águas salobras para preparar a solução nutritiva (SN) e a água doce para repor a evapotranspiração da cultura (ETc) (Experimento I) e usar a água doce para preparar a SN e as salobras para a reposição da ETc (Experimento II). Uma estrutura de pesquisa com 40 parcelas que simulam a técnica do fluxo laminar de nutrientes (NFT) foi construída. Os níveis de salinidade da água testados foram: 0,585; 1,17; 1,755; 2,925 e 4,095 g L-1 de NaCl. A salinidade diminuiu a produtividade da alface (massa de matéria fresca da parte aérea) em 10,9 e 3,91% para cada acréscimo unitário na salinidade da água (g L-1 de NaCl), considerando-se os Experimentos I e II, respectivamente. De acordo com os resultados obtidos com os dois tipos de combinação de águas doce e salobras, o uso de águas salobras para repor a ETc pode aumentar a produtividade da alface em comparação com o uso dessas águas para preparar a SN. [ABSTRACT FROM AUTHOR] |
| Copyright of Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi is the property of Revista Brasileira de Engenharia Agricola e Ambiental and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Combinação de águas doce e salobra para produção de alface hidropônica. – Name: TitleAlt Label: Alternate Title Group: TiAlt Data: Combination of fresh and brackish waters for hydroponic lettuce production. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Soares%2C+Tales+M%2E%22">Soares, Tales M.</searchLink><relatesTo>1</relatesTo><i> talesmiler@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Duarte%2C+Sergio+N%2E%22">Duarte, Sergio N.</searchLink><relatesTo>2</relatesTo><i> snduarte@esalq.usp.br</i><br /><searchLink fieldCode="AR" term="%22Silva%2C+Ênio+F%2E+F%2E%22">Silva, Ênio F. F.</searchLink><relatesTo>3</relatesTo><i> enio.silva@dtr.ufrpe.br</i><br /><searchLink fieldCode="AR" term="%22Jorge%2C+Cristiano+A%2E%22">Jorge, Cristiano A.</searchLink><relatesTo>2</relatesTo><i> cajorge@esalq.usp.br</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Revista+Brasileira+de+Engenharia+Agrícola+e+Ambiental+-+Agriambi%22">Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi</searchLink>. jul2010, Vol. 14 Issue 7, p705-714. 10p. 1 Color Photograph, 4 Charts, 7 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Salinity%22">Salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroponics%22">Hydroponics</searchLink><br /><searchLink fieldCode="DE" term="%22Lettuce%22">Lettuce</searchLink><br /><searchLink fieldCode="DE" term="%22Brackish+waters%22">Brackish waters</searchLink><br /><searchLink fieldCode="DE" term="%22Fresh+water%22">Fresh water</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+nutrients%22">Plant nutrients</searchLink><br /><searchLink fieldCode="DE" term="%22Evapotranspiration%22">Evapotranspiration</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink> – Name: Abstract Label: Abstract (English) Group: Ab Data: Plants of crisphead lettuce cv. Verônica were grown under hydroponic conditions aiming to evaluate two types of combination of brackish and fresh waters: using the brackish waters to prepare nutrient solution (NS) and fresh water to replace the evapotranspiration loss (ETc) (Experiment I) and using the fresh water to prepare NS and the brackish waters to replace the ETc loss (Experiment II). A research structure was built up with 40 experimental units which simulated the nutrient film technique (NFT). The levels of water salinity were 0.585; 1.17; 1.755; 2.925 and 4.095 g L-1 NaCl. The lettuce yield (fresh shoot matter) decreased 10.9 and 3.91% for each unit increase in water salinity (g L-1 NaCl) in Experiments I and II, respectively. According to results obtained with the two types of combination of fresh and brackish waters, the use of brackish waters to replace ETc loss may increase the lettuce yield in comparison to using these waters to prepare the NS. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Abstract (Portuguese) Group: Ab Data: Plantas de alface crespa cv. Verônica foram cultivadas em condição hidropônica objetivando-se avaliar dois tipos de emprego combinado de águas doce e salobras, quais sejam: usar as águas salobras para preparar a solução nutritiva (SN) e a água doce para repor a evapotranspiração da cultura (ETc) (Experimento I) e usar a água doce para preparar a SN e as salobras para a reposição da ETc (Experimento II). Uma estrutura de pesquisa com 40 parcelas que simulam a técnica do fluxo laminar de nutrientes (NFT) foi construída. Os níveis de salinidade da água testados foram: 0,585; 1,17; 1,755; 2,925 e 4,095 g L-1 de NaCl. A salinidade diminuiu a produtividade da alface (massa de matéria fresca da parte aérea) em 10,9 e 3,91% para cada acréscimo unitário na salinidade da água (g L-1 de NaCl), considerando-se os Experimentos I e II, respectivamente. De acordo com os resultados obtidos com os dois tipos de combinação de águas doce e salobras, o uso de águas salobras para repor a ETc pode aumentar a produtividade da alface em comparação com o uso dessas águas para preparar a SN. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi is the property of Revista Brasileira de Engenharia Agricola e Ambiental and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1590/S1415-43662010000700004 Languages: – Code: por Text: Portuguese PhysicalDescription: Pagination: PageCount: 10 StartPage: 705 Subjects: – SubjectFull: Salinity Type: general – SubjectFull: Hydroponics Type: general – SubjectFull: Lettuce Type: general – SubjectFull: Brackish waters Type: general – SubjectFull: Fresh water Type: general – SubjectFull: Plant nutrients Type: general – SubjectFull: Evapotranspiration Type: general – SubjectFull: Simulation methods & models Type: general Titles: – TitleFull: Combinação de águas doce e salobra para produção de alface hidropônica. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Soares, Tales M. – PersonEntity: Name: NameFull: Duarte, Sergio N. – PersonEntity: Name: NameFull: Silva, Ênio F. F. – PersonEntity: Name: NameFull: Jorge, Cristiano A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: jul2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 18071929 Numbering: – Type: volume Value: 14 – Type: issue Value: 7 Titles: – TitleFull: Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi Type: main |
| ResultId | 1 |
