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15. | | ANDRADE, C. de L. T. de; ALVARENGA, R. C.; COELHO, A. M.; BORGES JUNIOR, J. C. F. B. Agriculture-unduced water quality problems in a maize irrigated crop: 1 - nitrogen leaching. In: INTERNATINAL CONFERENCE ON DIFFUSE POLLUTION, 11., JOINT MEETING OF THE IWA DIFFUSE POLLUTION AND URBAN DRAINAGE SPECIALIST GROUPS, 1., 2007, Belo Horizonte. Proceedings... London: IWA, 2007. 1 CD-ROM. Biblioteca(s): Embrapa Milho e Sorgo. |
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17. | | GONÇALVES, J.; BORGES JÚNIOR, J. C. F.; CARLOS, L. de A.; SILVA, A. P. M.; SOUZA, F. A. de. Bioactive compounds in edible flowers of garden pansy in response to irrigation and mycorrhizal inoculation. Revista Ceres, Viçosa, v. 66, n. 6, p. 407-415, nov./dez. 2019. Biblioteca(s): Embrapa Milho e Sorgo. |
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20. | | PIMENTEL, J. do S.; SILVA, T. J. A.; BORGES JÚNIOR, J. C. F.; FOLEGATTI, M. V.; MONTENEGRO, A. A. A. Estimativa da transpiração em cafeeiros utilizando-se sensores de dissipação térmica. Revista Brasileira de Engenharia Agrícola e Ambiental, v.14, n.2, p.187-195, fev., 2010. Biblioteca(s): Embrapa Algodão. |
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Registros recuperados : 45 | |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
30/08/2021 |
Data da última atualização: |
31/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
BORGES JÚNIOR, J. C. F.; ANDRADE, C. de L. T. de. |
Afiliação: |
JOÃO CARLOS FERREIRA BORGES JÚNIOR, Universidade Federal de São João del-Rei; CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS. |
Título: |
Two-dimensional spatial distribution modeling of sprinkler irrigation. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Revista Ceres, v. 68, n.4, p. 257-266, 2021. |
DOI: |
https://doi.org/10.1590/0034-737X2021680400 |
Idioma: |
Inglês |
Conteúdo: |
Irrigation can provide significant agronomic and financial returns on agricultural activity. The maximization of the benefits obtained from irrigation depends, among other factors, on the water use efficiency, which is intrinsically related to application uniformity. For the sprinkler method, the irrigation uniformity assessment is based on results of labor-intensive field tests in which the two-dimensional water distribution pattern is measured in a grid of catch cans. The aim of this study was to evaluate a simplified methodology for determining the irrigation uniformity using water depth distribution data of a single sprinkler head in operation, positioned at the intersection of two diagonal alignments containing regularly spaced catch cans. Three methods to simulate the spatial water distribution on the alignments were evaluated: linear interpolation (LI), cubic spline (SC) and second-degree polynomial regression (PR). Each of these methods were associated with a procedure to calculate the two-dimensional spatial water distribution. The adequacy of the LI and SC modeling methods was verified by using the Wilcoxon-Mann-Whitney test (p-value < 0.05) applied to the data of the field tests. Mean values of the coefficient of efficiency equals to 0.771 and 0.785 were obtained for the LI and SC methods, respectively. The PR method underperformed the others |
Palavras-Chave: |
Coefficient of efficiency; Coeficiente de eficiência; Coeficiente de uniformidade; Eficiência de irrigação; Irrigation efficiency; Uniformity coefficient. |
Thesagro: |
Irrigação. |
Thesaurus NAL: |
Irrigation. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225578/1/Two-dimensional.pdf
|
Marc: |
LEADER 02158naa a2200241 a 4500 001 2133925 005 2021-08-31 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/0034-737X2021680400$2DOI 100 1 $aBORGES JÚNIOR, J. C. F. 245 $aTwo-dimensional spatial distribution modeling of sprinkler irrigation.$h[electronic resource] 260 $c2021 520 $aIrrigation can provide significant agronomic and financial returns on agricultural activity. The maximization of the benefits obtained from irrigation depends, among other factors, on the water use efficiency, which is intrinsically related to application uniformity. For the sprinkler method, the irrigation uniformity assessment is based on results of labor-intensive field tests in which the two-dimensional water distribution pattern is measured in a grid of catch cans. The aim of this study was to evaluate a simplified methodology for determining the irrigation uniformity using water depth distribution data of a single sprinkler head in operation, positioned at the intersection of two diagonal alignments containing regularly spaced catch cans. Three methods to simulate the spatial water distribution on the alignments were evaluated: linear interpolation (LI), cubic spline (SC) and second-degree polynomial regression (PR). Each of these methods were associated with a procedure to calculate the two-dimensional spatial water distribution. The adequacy of the LI and SC modeling methods was verified by using the Wilcoxon-Mann-Whitney test (p-value < 0.05) applied to the data of the field tests. Mean values of the coefficient of efficiency equals to 0.771 and 0.785 were obtained for the LI and SC methods, respectively. The PR method underperformed the others 650 $aIrrigation 650 $aIrrigação 653 $aCoefficient of efficiency 653 $aCoeficiente de eficiência 653 $aCoeficiente de uniformidade 653 $aEficiência de irrigação 653 $aIrrigation efficiency 653 $aUniformity coefficient 700 1 $aANDRADE, C. de L. T. de 773 $tRevista Ceres$gv. 68, n.4, p. 257-266, 2021.
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Embrapa Milho e Sorgo (CNPMS) |
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