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Dinâmica de entupimento de gotejadores em função da aplicação de água rica em ferro

Authors: Brauer, Rigléia Lima;

Dinâmica de entupimento de gotejadores em função da aplicação de água rica em ferro

Abstract

Com o propósito de avaliar a susceptibilidade de dois tipos de gotejadores ao processo de entupimento por ferro, foi conduzido um experimento em uma bancada de ensaios no Laboratório de Ensaio de Equipamentos para Irrigação do Departamento de Engenharia Rural da Universidade Estadual Paulista “Júlio de Mesquita Filho” – Campus de Botucatu. O ensaio corresponde ao processo de entupimento, e foram avaliados os seguintes modelos de gotejadores NaanDanJain: NaanPC laranja e NaanPC azul. Foram utilizados segmentos de tubos, totalizando 25 emissores, onde se mediu a vazão com a pressão de 150 KPa, com três repetições para cada gotejador. A água utilizada no ensaio foi proveniente do lago do Departamento de Engenharia Rural que é comumente utilizado para irrigações de experimentos. Posteriormente foram calculados: Vazão Média, Coeficiente de Variação de Vazão (C.V.Q), Uniformidade de Distribuição da Água (C.U.D), Coeficiente de Uniformidade de Christiansen (C.U.C) e Vazão Relativa (V.R.). Foi utilizado delineamento experimental estatístico de blocos inteiramente casualizados, com fatorial 2x2x7, com três repetições, sendo o primeiro fator os tratamentos com ferro, o segundo fator os tipos de gotejadores e o terceiro fator o tempo. Os resultados obtidos não apontaram diferença significativa nas diferentes doses de ferro. Entretanto, os resultados apontaram diferença significativa na interação gotejador x tempo e coeficiente de uniformidade de Christiansen (CUC) e vazão relativa (V.R.)

The objective of this study was to evaluate the susceptibility of clogging by iron in two types of drippers using a test bank located at the Irrigation Experimental Laboratory in the Department of Agricultural Engineering of “Sao Paulo State University Julio de Mesquita Filho - Campus of Botucatu, Sao Paulo state. The experiment aims to study the clogging process, evaluating 2 models of drippers NaanDanJain: NaanPC orange and NaanPC blue. It was used tube segments, totaling 25 drippers, using pressure of 150 kPa, with 3 repetitions for each dripper. The water used in the test was from the lake of the Department of Agricultural Engineering which is commonly used for irrigation experiments. It was calculated: the average discharge, the variation coefficient of discharge (CVQ), the uniformity coefficient of distribution (CUD), the uniformity coefficient of Christiansen (CUC) and the relative discharge (VR). It was used statistical experimental design of randomized blocks, with a 2x2x7 factorial with three replications, with the first factor treatment with iron, the second factor the types of drippers and the third factor the time. The results showed no significant difference in different doses of iron. However, the results indicated significant differences in drip x time interaction and the Christiansen uniformity coefficient (CUC) and relative discharge rate (VR)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Universidade Estadual Paulista (UNESP)

Country
Brazil
Keywords

Clogging of drippers, Uniformity of water distribution, Entupimento de gotejadores, Irrigação, Irrigação localizada, Trickle irrigation, Irrigação por gotejamento

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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