Techniques for Quality Control in Football Field Located in Agricultural Area

Siqueira, Marta Mitiko Kubota de; Boas, Márcio Antônio Vilas; Siqueira, Jair Antônio Cruz; Tokura, Luciene Kazue

doi:10.5539/jas.v10n9p430

Cited by 5 publications

(7 citation statements)

References 11 publications

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“…Through r 2 , it is also possible to attest that wind speed is the variable with highest correlation (r) with the distribution uniformity given by CU. Siqueira et al (2018) also found similar results when evaluating a sprinkler system for a soccer field, in Brazil. These authors verified that wind speed was the variable with the strongest effect on distribution uniformity.…”

Section: Resultssupporting

confidence: 65%

“…The grass for soccer fields, golfing, gardens and many others occupies large expanses of land and are highly sensitive to water deficit, requiring an appropriate irrigation management throughout the year. The water, when supplied in the right moment and quantity, guarantees that the grass field will be maintained in ideal conditions for proper practice of sports and aesthetic purposes (García-González et al 2015;Siqueira et al 2018). Thus, an adequate irrigation system presents itself as a relevant strategy to achieve these goals.…”

Section: Introductionmentioning

confidence: 99%

“…However, under adverse meteorological conditions, such as high temperatures, low air humidity and increased wind speed, this system does not perform in its full capacity, causing considerable losses of water, fertilizer, and electricity due to its lower efficiency (Molle et al 2012;Sheikhesmaeili et al 2016;Araújo et al 2020). Siqueira et al (2018) affirm that, although modern systems make use of advanced technologies to reduce water and energy consumption, it is not possible to reduce their wastes to zero.…”

Section: Introductionmentioning

confidence: 99%

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Uniformity of water distribution by a sprinkler irrigation system on a soccer field

et al. 2022

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Soccer field grass can be compared to highly sensitive crops regarding water deficit and must be irrigated throughout the year to provide decent conditions for use. For this, efficient irrigation systems are necessary to save water and energy, and this is possible, provided that they are evaluated. Therefore, this paper evaluated the water distribution uniformity, by different methodologies, for an irrigation system installed in a grass soccer field. Also, the influences of multiple spacings between sprinklers and meteorological factors on the final results were assessed. The irrigation system had Falcon 6504 sprinklers, operating at the pressure of 320 kPa. Six field essays were conducted considering overlaying water depths originated from the same irrigation system considering spacings between sprinklers varying from 6 m x 6 m, 6 m x 9 m, 9 m x 9 m, 9 m x 12 m, 12 m x 12 m, 12 m x 15 m, 15 m x 15 m, 15 m x 18 m, 18 m x 18 m, 18 m x 21 m, 21 m x 21 m, 21 m x 24 m, 24 m x 24 m, 24 m x 27 m, 27 m x 27 m, 27 m x 30 m and 30 m x 30 m. The uniformity coefficients used were: Christiansen uniformity coefficient (CU), distribution uniformity coefficient (DU), absolute uniformity coefficient (UA), statistical uniformity coefficient (US), Hart uniformity coefficient (UH) and HSPA standard efficiency (UHSPA). Meteorological data were obtained during the essays. Wind speed caused reduction in the length of the water jet applied by the sprinkler and also caused a bigger effect on the water distribution uniformity. Both CU and UH showed higher values compared to the other coefficients. The increase in the spacing between the sprinklers resulted in reduced water distribution coefficients. To comply with technical and economic criteria, an arrangement of 12 m x 15 m between the Falcon 6504 sprinklers, operating at a 320 kPa pressure, is recommended.

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Section: Resultssupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Uniformity of water distribution by a sprinkler irrigation system on a soccer field

et al. 2022

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“…Sequences of six points in the descending order characterize an out of statistical control process (Montgomery, 2016). The EWMA control chart is the most suitable for micro irrigation assessment, as it detects minor variations in the process (Siqueira et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Control charts for monitoring drip irrigation with different hydraulic heads

Lopes¹,

Boas²,

Pazuch³

et al. 2020

Rev. ambiente água

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This study monitored a drip irrigation system with different hydraulic heads, using control charts. The study included 25 tests, and was conducted at the Experimental Nucleus of Agricultural Engineering of the State University of Western Paraná, located in the municipality of Cascavel, Paraná. The drip irrigation system was operated by gravity, and had four hydraulic heads (10, 11, 12 and 15 kPa). The uniformity of the system was determined based on uniformity distribution. Uniformity monitoring was performed using Shewhart and exponentially weighted moving-average (EWMA) control charts. An increase in the hydraulic head increased uniformity. The use of 12 and 15 kPa hydraulic heads yielded good performance, whereas 10 and 11 kPa yielded regular performance. The use of control charts proved to be efficient; the Shewhart control chart was more robust, whereas the EWMA control chart, which indicated trends and deviations not shown by Shewhart control charts, was more sensitive.

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“…For analysis of parameters, such as uniformity, statistical control techniques such as control charts can be applied. Studies on quality control in irrigation have been the focus of some research, such as those by (Frigo et al 2013), (Hermes et al 2015), (Zocoler et al 2015), (Andrade et al 2017), (Siqueira 2018) and (Lopes et al 2021b). It is noteworthy that, from the use of this technique, the authors obtained important results for the improvement of the process.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Urea Concentration in Drip Fertirrigation

Kepp1

Boas

Haupenthal1

et al. 2022

Preprint

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Topographic slope negatively affects irrigation uniformity when associated with fertilizer application via irrigation water. The concentration of the injection solution at the emitter outlet can adversely affect the uniformity of the drip system. Therefore, the objective was to evaluate the ideal concentration that maintains high levels of uniformity for the nitrogen solution, applied via fertigation, in different concentrations of the injection solution, with different levels of slope. The experiment was conducted out in a protected environment at the Laboratory of Irrigation and Fertigation (LIF), Cascavel-, PR. The experimental design was conducted out in randomized blocks in a 4x3 factorial scheme, in which the concentration of fertilizer was evaluated at three levels of slope: with plots divided into two factors, the main factor being the type of water, represented by four plots: clean water (from artesian well) and water with nitrogen fertilizer, urea (44% N) in three concentrations (2 g L-1; 4 g L-1; 6 g L-1); and as a second factor, the slope levels, represented by the subplot: level (0%), uphill of 2% and downhill of 2%. The addition of 4 g L-1 urea concentration affected the uniformity at all slope levels, presenting values for UD< 90%, observed in the Shewhart control chart. The increase in urea concentration by 6 g L-¹ affected the distribution uniformity of the system in level, with values for UD< 70%. The system was able to apply concentrations up to 2 g L-1 in level, presenting Cpl = 2.86.

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Techniques for Quality Control in Football Field Located in Agricultural Area

Cited by 5 publications

References 11 publications

Uniformity of water distribution by a sprinkler irrigation system on a soccer field

Uniformity of water distribution by a sprinkler irrigation system on a soccer field

Control charts for monitoring drip irrigation with different hydraulic heads

Monitoring of Urea Concentration in Drip Fertirrigation

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