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DC Field | Value | Language |
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dc.contributor.author | Barros, Allan C. | pt_BR |
dc.contributor.author | Folegatti, Marcos V. | pt_BR |
dc.contributor.author | Souza, Claudinei Fonseca | pt_BR |
dc.contributor.author | Santoro, Bruno de Lima | pt_BR |
dc.date.accessioned | 2019-09-12T16:25:50Z | - |
dc.date.available | 2019-09-12T16:25:50Z | - |
dc.date.issued | 2009 | - |
dc.citation.volume | 13 | pt_BR |
dc.citation.issue | 6 | pt_BR |
dc.citation.spage | 700 | - |
dc.citation.epage | 707 | - |
dc.identifier.doi | 10.1590/S1415-43662009000600006 | pt_BR |
dc.identifier.issn | 1807-1929 | - |
dc.identifier.uri | http://repositorio.unitau.br/jspui/handle/20.500.11874/1716 | - |
dc.description.abstract | Studies of sub-surface water movement is an interesting topic in irrigation but, in spite of the its importance, there is little literature. One of the purposes of this study was to contribute to this subject and evaluate the distribution of water applied by both subsurface drip irrigation (SDI) and conventional irrigation. Experiments were conducted at the Department of Rural Engineering (ESALQ/USP), located at Piracicaba, SP. Trenches were opened and 17 three-rod TDR probes were installed, placed at 0.05, 0.15, 0.25, 0.35 and 0.45 m depths, and to 0.05, 0.15, 0.25, 0.35 m intervals. This procedure was repeated using a dripper buried at 0 and 0.10 m for each discharge rate of 2 and 4 L h-1 tested. Wetted soil volume was observed with 1 L of water applications at intervals (total 10 L). The saturated disc around the dripper and the advance of the wetting front on the soil surface were measured with a ruler. Also, a central control volume was established inside the wetted soil volume where the uniformity of application was evaluated. The results suggest that SDI presented smaller wetted soil surface area and it reached larger distance and depth with greater storage of solution adjacent to the dripper. | en |
dc.description.abstract | Devido à falta de estudos sobre o movimento da água quando aplicada abaixo da superfície, realizou-se este trabalho com o objetivo de avaliar a distribuição de água aplicada pelo sistema de gotejamento enterrado e convencional. O experimento de campo foi conduzido na área experimental do Departamento de Engenharia Rural da ESALQ/USP - Piracicaba, SP. Para o estudo, trincheiras foram abertas e instaladas sondas de TDR, dispostas a 0,05; 0,15; 0,25; 0,35 e 0,45 m profundidade, e a 0,05; 0,15; 0,25; 0,35 m comprimento, totalizando 17 sondas por trincheira. Os tratamentos foram baseados na profundidade de aplicação (0,0 e 0,10 m) e vazão aplicada (2 e 4 L h-1): ENT2; ENT4; SUP2 e SUP4. A cada hora era aplicado 1 L de água (total de 10 L), seguida de leituras com o TDR. Medições do disco úmido e saturado foram feitas com régua milimetrada; além disso, estabeleceu-se um volume controle onde foi avaliada a uniformidade de aplicação; assim, foi possível verificar, em relação aos sistemas superficiais, que os sistemas enterrados apresentaram menor área superficial molhada e atingiram maior largura e profundidade; já as maiores concentrações foram obtidas próximas ao ponto de emissão. | pt_BR |
dc.description.provenance | Made available in DSpace on 2019-09-12T16:25:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2009 | en |
dc.language | Português | pt_BR |
dc.publisher | Departamento de Engenharia Agrícola - UFCG | - |
dc.publisher.country | Brasil | pt_BR |
dc.relation.ispartof | Revista Brasileira de Engenharia Agrícola e Ambiental | - |
dc.rights | Acesso Aberto | pt_BR |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0 | * |
dc.source | Scielo | pt_BR |
dc.subject.other | wetted soil volume | en |
dc.subject.other | water-soil relationship | en |
dc.subject.other | TDR | en |
dc.subject.other | bulbo úmido | pt_BR |
dc.subject.other | relação água-solo | pt_BR |
dc.subject.other | TDR | pt_BR |
dc.title | Distribuição de água no solo aplicado por gotejamento enterrado e superficial | en |
dc.title.alternative | Soil water distribution for subsurface and surface drip irrigation | - |
dc.type | Artigo de Periódico | pt_BR |
dc.contributor.orcid | Souza, Claudinei https://orcid.org/0000-0001-9501-0794 | pt_BR |
dc.contributor.researcherid | Folegatti, Marcos/I-5767-2013 | pt_BR |
dc.contributor.researcherid | Souza, Claudinei/I-3273-2012 | pt_BR |
dc.description.affiliation | [Souza, Claudinei F.] Universidade Federal de São Carlos, Brazil | - |
dc.description.affiliation | Santoro, Bruno L.] UNITAU | - |
dc.description.affiliation | Barros, Allan C.; Folegatti, Marcos V.] USP | - |
dc.subject.researcharea | Agriculture | en |
dc.subject.researcharea | Environmental Sciences & Ecology | en |
dc.subject.scieloarea | Agricultural Engineering | en |
dc.subject.scieloarea | Environmental Sciences | en |
dc.identifier.scielo | SCIELO:S1415-43662009000600006 | - |
Appears in Collections: | Artigos de Periódicos |
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