Drippers
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. SOIL SOLUTION DISTRIBUTION IN SUBSURFACE DRIP IRRIGATION IN SUGARCANE
Abstract Given the lack of studies on subsurface drip irrigation in sugarcane plantations, there has been a growing demand for such information, mainly regarding soil solution profile and availability to plants. Thus, this study aimed to evaluate the effects of soil-water solution distribution on qualitative and quantitative traits of sugarcane irrigated by
Eng. Agríc.. Publicado em: 2018-04
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2. STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER
ABSTRACT The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one of the inline emitters was not self-compensating and the other, self-compensating emitter. The s
Eng. Agríc.. Publicado em: 2018-01
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3. Irrigation management influence and fertilizer doses with boron on productive performance of cauliflower
ABSTRACT In order to provide scientific information about the irrigated cauliflower production in Northeast of Para, an experiment was installed in the Federal Rural University of Amazonia farm with the Desert hybrid under different water tensions on the ground and boron doses in the municipality of Igarapé-Açu – PA. The experimental design was a randomi
Eng. Agríc.. Publicado em: 2016-10
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4. Aplicação da trifluralina no controle da intrusão radicular de tubogotejadores enterrados sob lavoura cafeeira / Application of trifluralin in root intrusion control of subsurface drip under coffee
The objective of this research was to investigate effects of different doses and frequency of application of the herbicide Trifluralin to avoid root intrusion in subsurface drip irrigation in a coffee field during its initial development (6 to 18 months). While the space between rows was 2.5 meters, space between plants was 0.5 meters. A completely randomize
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2011
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5. Impacto de los sistemas de riego por goteo en arándanos
The experiment examined the effects of different drip irrigation systems in an O´Neal variety of blueberry (Vaccinium corymbosum L). It was contucted at Zarate (33º 41’ S and 59º 41’ W), Buenos Aires, Argentina. Plants of the experiment were planted in August of 2001, after one year in nursery. The first harvest was realized in October of 2003. The ma
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2011-01
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6. Respuesta del duraznero a diferentes patrones de aplicación del agua
An experiment was carried out for three years (2004/05 to 2006/07) on a just implanted peach grove, in the south of Uruguay. Five irrigation treatments were applied: without irrigation (T1), drippers of 1.6 L h-1 at 0.4 m (T2), drippers of 4 L h-1 at 1 m (T3), microjets of 21 L h-1 at 5 m (T4) and drippers of 2 L h-1 at 1 m, two lines by row (T5), following
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2010-01
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7. Evaluation of boom hydraulic sprayers in the region of Uberlândia-MG / Avaliação de pulverizadores hidráulicos de barra na região de Uberlândia-MG
Any and every manner of pesticide application represents environmental risks, which must be minimized by the use of proper knowledge and technology, assuring a sustainable food production. Often, great importance is given to the pesticide and little to the application technique. The identification of the conservation state and mode of use of the sprayers in
Publicado em: 2009
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8. Perda localizada de carga em gotejadores integrados em tubos de polietileno / Local head losses for integrated drippers in polyethylene pipes
A inserção de gotejadores em uma tubulação modifica as linhas de fluxo, provocando turbulência local, que resulta em perdas de carga adicionais maiores que as perdas contínuas na tubulação. Para avaliar a perda total de carga, ao longo da linha lateral de gotejadores, as perdas contínuas e as localizadas, devidas à presença dos emissores no tubo,
Publicado em: 2009
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9. âANÃLISE TÃCNICA E ECONÃMICA DA PRODUÃÃO DE ALFACE AMERICANA IRRIGAÃÃO POR GOTEJAMENTOâ. / Technical and economical analysis for the crisphead lettuce production under dripping.
Lettuce is one of the vegetables mostly consumed by the Brazilian population, being the states of SÃo Paulo and Minas Gerais the main producers and consumers. With the aim of reducing the difficulties faced by the producers on cultivating the crisphead lettuce, specifically those related to the lack of technical information about the right time to irrigate
Publicado em: 2008
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10. 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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11. 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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12. Perfomance of coffee plant (Coffea arabica L.) to drip irrigation levels / Resposta do cafeeiro (Coffea arabica L.) à lâminas de irrigação por gotejamento
This study evaluated coffee plant Ruby, line MG-1192, vegetative development, yield and berry quality, cultivated under irrigation levels during five years. The experiment was done in a loamy red latosol, at Experimental Farm of Glória, located to 1858 S and 4812 W, and approximately 890 m above sea level, in the county of Uberlândia, in Minas Gerais, Braz
Publicado em: 2007