Irrigation Engineering
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. Water use efficiency of different production techniques for zucchini
ABSTRACT. The effects of pulse drip, drip line position and soil mulch on water use efficiency in yields of zucchini cv. Clarinda were evaluated. The experiment was conducted in the experimental area of the Engineering Department of the Federal University of Lavras, Lavras, Minas Gerais State, Brazil, for two years. For the first year of the experiment, the
Acta Sci., Agron.. Publicado em: 13/06/2019
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2. Ponte dos Jesuítas, Rio de Janeiro (RJ): uma análise de seus elementos com base na integração de registros textuais, iconográficos e petrográficos
RESUMO Considerada a mais importante obra de engenharia brasileira do século XVIII, a Ponte dos Jesuítas, tombada pelo Iphan em 1938, foi construída por religiosos inacianos como parte de um sistema complexo de drenagem e irrigação da Fazenda Santa Cruz, localizada na Zona Oeste da cidade do Rio de Janeiro. O trabalho aqui apresentado é o primeiro estu
An. mus. paul.. Publicado em: 04/04/2019
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3. MODELING SOIL WATER REDISTRIBUTION UNDER SURFACE DRIP IRRIGATION
ABSTRACT The main objective of this study was to develop a numerical model to simulate water distribution, and the shape of the wetted soil volume, resulting from a point source irrigation at the ground surface (dripper), given soil hydraulic properties and irrigation system parameters. The mathematical model was developed in Fortran 90 at the Department of
Eng. Agríc.. Publicado em: 2019-02
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4. CHEMICAL PROPERTIES OF SOIL FERTIRRIGATED WITH DAIRY AND SLAUGHTERHOUSE WASTEWATER
ABSTRACT The aim of this study was to evaluate the soil chemical properties submitted to fertigation with slaughterhouse (SW) and dairies (DW) wastewater. The experiment was conducted in the Environmental Engineering Center and Sanitary of UFLA/MG in PVC columns filled with Dark Red Latosol (Oxisol) and randomly distributed. The treatments applied with nitro
Eng. Agríc.. Publicado em: 2017-12
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5. Desenvolvimento de um regulador de pressão microprocessado / Development of a microprocessed pressure regulator
Dentre os fatores que afetam a uniformidade de aplicação de água, cita-se a variação de pressão no sistema, causada principalmente pela topografia do terreno e pela inexistência ou operação inadequada de reguladores de pressão. Nesse sentido, têm-se empregado válvulas reguladoras de pressão nos projetos de irrigação com variações topográfic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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6. Fish passage system in an irrigation dam (Pilcomayo River basin ): when engineering designs do not match ecohydraulic criteria
The Route 28 Dam has the potential to block fish movements from La Estrella marsh to the Pilcomayo River. In addition, the many fish that concentrate immediately downstream of the dam may suffer high mortality when they are stranded during low water periods. The goals of this study are to determine if fish are able to pass the spillway and to assess if the d
Neotrop. ichthyol.. Publicado em: 2012-10
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7. PARÂMETROS FÍSICOS E HÍDRICOS RELACIONADOS COM O AVANÇO DA FRENTE DE MOLHAMENTO / PHYSICAL AND HYDRIC PARAMETERS RELATED TO THE SOIL WETTING FRONT ADVANCE
O presente estudo visou contribuir no âmbito metodológico, nas áreas da ciência do solo e da irrigação, notadamente a microirrigação (irrigação localizada), na obtenção in situ de parâmetros físicos e hídricos, em especial as funções hidrodinâmicas do Argissolo Vermelho Distrófico Arênico (PVd). Foi projetado um sistema multi-gotejador, c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
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8. Modelo para determinação da perda de carga contínua em tubos elásticos / Model for determining the continuous head losses in elastic pipe
Total head losses are accounted in the irrigation hydraulic projects, that would be the continuous losses and the local head losses, aiming to maximize the uniformity of water distribution, characterizing an adequate pump set to the irrigation system e thus, minimizing the project implantation and annual costs. With informatics support, complex calculation p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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9. Efeito de tensões de água no solo em cultivo de morangueiro submetido a poda / Effect soil water tensions in strawberry submitted to pruning
Strawberry yield and quality was evaluated after drastic pruning (second cycle), under different soil water tensions, drip irrigation in edaphoclimatic conditions at south of Minas Gerais. The experiment was conducted on beds at a greenhouse, located at Engineering Department, Federal University of Lavras (UFLA), from April to December of 2010. An experiment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
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10. Produtividade da água em biomassa e energia para 24 variedades de cana-de-açucar / Water productivity in biomass and energy for 24 sugarcane varieties
The purpose of this study was to observe the response on biomass yield and energy (shoot) as well as the water productivity (WP) for 24 sugarcane varieties, subjected to full and deficit irrigation during stalk growth stage. Two experiments were established under greenhouse conditions on Biosystems Engineering Department, ESALQ/USP, Piracicaba, SP. The Exper
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/07/2011
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11. Parques agrários no baixo Jaguaribe : arquitetura rural da região dos perímetros irrigados resultante do planejamento de bacias hidrográficas / Agrarian park on lower Jaguaribe : rural architecture in the region of irrigated perimeters resulting from watersheds planning
Human interventions confer throughout history personality and typical characteristics in several regions. In Ceará, the region of the irrigated areas of low Jaguaribe is a good example of the interaction that takes place in the landscape, mainly by human disturbances - which reveals a mastery over nature - and by the landscapes when associated to the histor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/05/2011
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12. Estimativa de um índice de estresse hídrico para a cultura da cana-de-açúcar com base na temperatura foliar / Estimating of crop water stress index to sugarcane based on the canopy temperature
The objective of this work was to evaluate the behavior of leaf temperature and transpiration of sugarcane under different matric and meteorological conditions to estimate a crop water stress index (IEHC), which can be applied in irrigation management and estimates of productivity. Because of the need to apply water stress to plants, the experiment was condu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2010