Drip Trickle Irrigation
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Irrigação e fertirrigação no desenvolvimento de eucalipto
Resumo O objetivo do trabalho foi avaliar a influência da irrigação localizada e da fertirrigação sobre o desenvolvimento do híbrido de eucalipto Grancam, no quarto ano após a sua implantação. O delineamento experimental foi em blocos casualizados, com parcelas subdivididas. As parcelas foram dois sistemas de irrigação localizada (microaspersão e
Ciênc. Florest.. Publicado em: 02/12/2019
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2. Programa computacional (PROIRRIGA) para avaliaÃÃo da uniformidade em irrigaÃÃo por gotejamento e sua validaÃÃo
The uniformity in trickle irrigation systems is affected by factors hydraulic, air, lack of maintenance and poor quality of irrigation water resulting in poor distribution of water, either excessive or insufficient, causing loss of productivity. Considering the increased use of automated drip irrigation on farms based on the Family Farm, this work establishe
Publicado em: 2009
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3. Metodologia para determinação da perda de carga localizada em emissores não coaxiais integrados a tubos de polietileno / Methodology for Localized head loss determination of non coaxial emitters inserted in polyethylene pipe
The design of a lateral line of trickle irrigation requires an accurate evaluation of head losses in not only the pipe but the emitters as well. A procedure was developed to determine localized head losses within the emitters by the formulation of a mathematical model accounting for the obstruction caused by the insertion point. These localized losses can be
Publicado em: 2008
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4. Dynamic and control of drippers clogging due to chemical precipitates and fitoplankton content / Dinâmica e controle do entupimento de gotejadores em função de precipitados químicos e fitoplâncton
This study attempts to quantify the flow rate variation in drippers (trickle irrigation) submitted to water with different hardness (Langelier Saturation Index), others fertilizer precipitates and fitoplankton content. The experiment was accomplished in three phases, 26 models of self-compensating (SC) and conventional (C) drippers were used. Drip lines were
Publicado em: 2007
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5. Desempenho de sistema de irrigação por gotejamento utilizado na aplicação de água residuária de suinocultura / Performance of dripping irrigation system using swine wastewater
The objective of this work was to analyze the performance of a drip irrigation system using swine wastewater. The following parameters were evaluated: (a) removal of suspended solids, oils and greases by passing the effluent through sloped static screens; (b) influence of service pressure on clogging of drippers operating with effluent and water; and (c) eff
Publicado em: 2007
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6. Modeling, development of software for designing, and evaluation of drip irrigation systems with microtubes. / Modelagem, desenvolvimento de software para dimensionamento, e avaliação de sistemas de irrigação por gotejamento com microtubos.
The use of microtubes has been increasing especially in poor countries of Asia and Africa, where international organizations struggle for the development of small farmers through the insertion of low cost technologies. Within this context and with the intention of offering technical and scientific background for the development of a low cost and high technol
Publicado em: 2005
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7. Modelagem da dinâmica da água e do potássio na irrigação por gotejamento superficial. / Dynamics of water and potassium modeling under superficial trickle irrigation.
The technique of fertigation application is winning acceptance, mainly in trickle irrigation, due to the advantages that it presents as the possibility of controlling the nutrition of the plants, as the case of the potassium, that is one of the most used fertilizers. However, the description of the transport of water and solute under real conditions presents
Publicado em: 2005
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8. Root intrusion and vacumm effects in subsurface drip irrigation of sugar cane. / Intrusão radicular e efeito de vácuo em gotejamento enterrado na irrigação de cana-de-açúcar.
Com o propósito de avaliar o potencial de intrusão radicular e os efeitos da ocorrência de vácuo nas linhas de irrigação em diversos modelos de gotejadores, quando utilizados em irrigação subsuperficial, foram conduzidos três experimentos em condição de ambiente protegido. Dois experimentos foram conduzidos em vasos: um com a cultura da cana-de-a�
Publicado em: 2004
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9. Citrus orchard water use in a latossolo vermelho amarelo (oxisol). / Consumo de água por cultura de citros cultivada em latossolo vermelho amarelo.
The agricultural yield and, particularly in this study, the citrus yield, associated to weather and soil conditions, is dependent on the presence of water and nutrients in the soil in appropriate amounts along the time. Its lack or excess is a limiting factor to the production, determining in many cases its decrease. The objective of the present work was to
Publicado em: 2003
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10. Flow variation of emitters under subsurface drip irrigation in citrus and coffee crops. / Variação de vazão de gotejadores enterrados na irrigação de citros e café.
This work aimed to quantify drippers performance under subsurface drip irrigation (SDI), regarding the flow variation due to root intrusion under citrus and coffee crops. The experiment was carried out inside a greenhouse during the year of 2001, at the University of Sao Paulo (ESALQ), in Piracicaba SP. Coffee seedlings and orange scions planted in vases wit
Publicado em: 2002
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11. Utilização de mantas não tecidas como elemento filtrante em sistemas de irrigação localizada
The objective of this work was to evaluate the efficiency of non woven synthetic fabrics on algae removal from water used in trickle and drip irrigation systems. For the evaluation of the non woven synthetic fabrics, the assays have been divided in three stages: in the first stage eight types of synthetic fabrics were evaluated in relation to the head loss e
Publicado em: 2001