Irrigation Engineering
Mostrando 13-24 de 47 artigos, teses e dissertações.
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13. Sistema de irrigação por capilaridade na produção de porta-enxertos de mudas citricas na fase de sementeira / Irrigation system by capillary action in the citrus rootstocks production in seedings stage
The water and nutrition management in the production of citrus rootstocks in the seedling phase performed by sprinkler systems, manually operated, presents the environmental outcome of water or residual solution disposal from the fertigation. The generated wastewater is generally discarded directly in the soil with the risk to reach the groundwater and conta
Publicado em: 2010
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14. Avaliação dos componentes hidraulicos e do material filtrante em filtros de areia utilizados na irrigação / Evaluation of hydraulic components and the filter material in sand filters used for irrigation
Filtros de areia são equipamentos recomendados no tratamento de água de irrigação em sistemas localizados, na presença de materiais orgânicos e inorgânicos. Contudo, o pouco conhecimento disponível na literatura e as informações técnicas dispersas, que não chegam ao produtor, limitam a operação e manutenção desses filtros de forma apropriada
Publicado em: 2010
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15. TEMPERATURE AND HUMIDITY OF A SANDY LOAM SOIL CULTIVATED WITH MAIZE / TEMPERATURA E UMIDADE DE UM SOLO FRANCO ARENOSO CULTIVADO COM MILHO
Water is a key factor for crop yields, and causes major fluctuations in productivity, especially for maize cultivated in southern Brazil. Mulching the soil surface, temperature and soil moisture are factors closely linked and, when handled properly, can provide the increases crop yields. The soil water conservation is an important aspect for more stable and
Publicado em: 2010
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16. MANEJO DA IRRIGAÃÃO NA LAVOURA CAFEEIRA (Coffea arabica L.) RECEPADA / Of pruned coffee trees under different irrigation management strategies.
The experiment was carried out in Lavras-MG with objective to evaluate different irrigation management strategies and their effect upon flowering induction, flower boom and grain production on pruned coffee, and their effect to increase productivity, save water and energy on irrigation. The study was conducted at the experimental area of Engineering Departme
Publicado em: 2009
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17. ProduÃÃo na entressafra do maracujazeiro-amarelo irrigado em diferentes ambientes de cultivo. / Out-of-season production of yellow passion irrigation of crops in different environments:
This study evaluated the effect of different irrigation depths and environment out-of-season production of yellow passion. We evaluated the productivity and fruit quality of yellow passion fruit (Passiflora edulis Sims F. flavicarpa Deg.) in the period February to October of 2007 in the experimental area, Engineering Department from Federal University of Lav
Publicado em: 2009
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18. Regression models for growth description of the irrigated and unirrigated pruned coffee tree / Modelos de regressão para descrição do crescimento do cafeeiro irrigado e não irrigado após recepa
The irrigated coffee crop grown has expanded throughout the national territory, especially where production is more significant as Minas Gerais, Espirito Santo and São Paulo. Thus, irrigation has been a great producer ally, because, if well conducted, has reduced losses and increased profitability. The aim of this study was to test the linear and nonlinear
Publicado em: 2009
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19. Strategy of monitoring and automation in irrigation systems using communication devices in wireless sensor network / Estratégia de monitoramento e automação em sistemas de irrigação utilizando dispositivos de comunicação em redes de sensores sem fio
The goal of this study was to develop strategies for monitoring and automated irrigation systems using FDR capacitance sensors to collect data of water content in the soil through Wireless Sensor Network (WSN). The FDR capacitance sensors were developed in the Department of Agricultural Engineering (DENA) pertain UFC. Were used 14 FDR capacitance sensors and
Publicado em: 2009
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20. Levels of irrigation and potassium doses applied by drip irrigation in cultivation of banana for the region at the Apodi plateau-CE / Níveis de irrigação e doses de potássio aplicados por gotejamento na cultura da bananeira para a região da Chapada do Apodi-CE
The region at the Apodi plateau in northeastern Ceará, has been increasing in recent years as a major pole production and marketing of tropical fruits of the state and also in northeastern Brasil, especially as regards the banana plant irrigated agribusiness. In this region the Prata anã varieties, Pacovan and rata Graúda (Pacovan Apodi) are the most plan
Publicado em: 2009
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21. Efeitos da salinidade sobre a germinaÃÃo e o desenvolvimento inicial do pinhÃo-manso (Jatropha curcas L.) / Salinity effects on the germination and initial development of Jatropha plants (Jatropha curcas L.)
This research was carried to evaluate salinity effects on initial development of Jatropha plants through two experiments. The first, to evaluate the effects of salinity on the germination was conducted at the Laboratory of Seed Analysis (LAS), Federal University of Lavras (UFLA) in Lavras-MG, Brazil. Jatropha seeds were exposed to seven salinity concentratio
Publicado em: 2009
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22. Simulação de demandas de recursos hídricos utilizando o método de simulação MIKE BASIN, no trecho do reservatório de Ibitinga no rio Tietê e seus afluentes / Simulation of water resources demand using geographical information system model and simulation MIKE BASIN in the excerpt from the reservoir in the Tietê river Ibitinga and its tributaries
This research project examined the data and raised the demands for various uses in sub-basins of which Jacaré-Guaçu, Jacaré-Pepira and Claro river that are part of UGRHI 13 (watershed Tietê-Jacaré) and reaching the average sentence Tietê river, the reservoir of the hydroelectric plant Ibitinga. The objective of this research was to provide results base
Publicado em: 2009
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23. Avaliação do sensor de umidade TOPDEA no manejo da irrigação. / Evoluation of the moisture sensor topdea for irrigation scheduling.
The scientific community, in recent years, has intensified studies to measure the impacts to the environment caused by pollution, mainly the adverse effects to air and water. The fact that less than 1% of the global water resources is comprised of drinking water and available at the surface of the earth makes it a commodity of conflict. According to the FAO
Publicado em: 2008
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24. IrrigaÃÃo e fertirrigaÃÃo em um sistema de aspersÃo convencional submetido à tÃcnicas de controle estatÃstico de qualidade. / Irrigation and fertigation in sprinkler system submitted to techniques of statistical quality control
The contribution of irrigation in the alimentary supply, is due to the fact of more and more to look for more efficient systems, monitoring the indexes of uniformity of distribution of the water. The application of fertilizers through irrigation water took very big pulse in the last times, mainly due to the emergence of pressurized systems, of the tunnels of
Publicado em: 2008