Source: http://www.ccarevista.ufc.br/seer/index.php/ccarevista/article/view/5362
Timestamp: 2019-04-19 15:11:31+00:00

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The wet bulb is the volume that presents greater moisture in relation to the initial soil moisture, being a result of local application of irrigation water. Due to increased moisture in the soil, successive irrigation events tend to form bigger wet bulbs and superficial water accumulation area (SWAA). The objective was to verify the distribution of water in the soil profile, with intermittent application of water, considering the hypothesis that moisture increase prior to the application of the water pulse changes the characteristics of the wet bulb, and to evaluate the effect of increasing SWAA on the lateral dimensions of the bulb. The water applications were performed using 1, 2 and 4 pulses in the flows of 4 and 8 L h-1, totalizing six treatments, which were carried out in four replications for each treatment. The evaluations of SWAA were performed with the continuous application of water at the mentioned flow rates. It was observed that the changes in moisture distribution within the wet bulb due to intermittent application of water and the magnitude of the SWAA are ephemeral.
ABDELRAOUF, R. E. et al. Effect of pulse irrigation on clogging emitters, application efficiency and water productivity of potato crop under organic agriculture conditions. Australian Journal of Basic and Applied Sciences, v. 6, n. 5, p. 807-816, 2012.
ALVES SOBRINHO, T. et al. Infiltração de água no solo em sistemas de plantio direto e convencional. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 7, n. 2, p. 191-196, 2003.
BAGARELLO, V.; IOVINO, M.; ELRICK, D. A simplified falling-head technique for rapid determination of field-saturated hydraulic conductivity. Soil Science Society of America Journal, v. 68, p. 66-73, 2004.
BAKEER, G. A. A. et al. Effect of pulse drip irrigation on yield and water use efficiency of potato crop under organic agriculture in sandy soils. Misr Journal of Agricultural Engineering, v. 26, n. 2, p. 736-765, 2009.
BERNARDO, S.; SOARES, A. A.; MANTOVANI, E. C. Manual de Irrigação. 8ed.Viçosa: UFV, 2006. 625p.
BUFON, V. B. et al. Soil water content on drip irrigated cotton: comparison of measured and simulated values obtained with the Hydrus 2-D model. Irrigation Science, v. 30, n. 4, p. 259-273, 2012.
EID, A. R.; BAKRY, B. A.; TAHA, M. H. Effect of pulse drip irrigation and mulching systems on yield, quality traits and irrigation water use efficiency of soybean under sandy soil conditions. Agricultural Sciences, v. 4, n. 5, p. 249-261, 2013.
ELMALOGLOU, S.; DIAMANTOPOULOS, E. Effects of hysteresis on redistribution of soil moisture and deep percolation at continuous and pulse drip irrigation. Agricultural Water Management, v. 96, n. 3, p. 533-538, 2009.
ELMALOGLOU, S.; DIAMANTOPOULOS, E. The effect of intermittent water application by surface point sources on the soil moisture dynamics and on deep percolation under the root zone. Computers and Electronics in Agriculture, v. 62, n. 2, p. 266-275, 2008.
ELMALOGLOU, S.; DIAMANTOPOULOS, E. Wetting front advance patterns and water losses by deep percolation under the root zone as influenced by pulsed drip irrigation. Agricultural Water Management, v. 90, n. 1/2, p. 160-163, 2007.
ELNESR, M. N. et al. Evaluating the effect of three water management techniques on tomato crop. PLOS ONE, v. 10, n. 6, p. 1-17, 2015.
GONÇALVES, A. C. A. et al. Distribution of water in sandy soil applied by drip. Engenharia Agrícola, v. 34, n. 6, p. 1175-1185, 2014.
GONÇALVES, A. C. A. et al. Influência da densidade do solo na estimativa da umidade em um Nitossolo Vermelho Distroférrico por meio da técnica de TDR. Revista Brasileira de Ciência do Solo, v. 35, n. 5, p. 1551-1559, 2011.
GONÇALVES, A. C. A.; FOLEGATTI, M. V.; SILVA, A. P. Estabilidade temporal da distribuição espacial da umidade do solo em área irrigada por pivô central. Revista Brasileira de Ciência do Solo, v. 23, p. 155-164, 1999.
HAO, A. et al. Estimation of wet bulb formation in various soil during drip irrigation. Journal of the Aculty of Agriculture, v. 52, n. 1, p. 187-193, 2007.
KARMELI, D.; PERI, G. Basic principles of pulse irrigation. Journal of the Irrigation and Drainage Division, v. 100, n. 3, p. 309-319, 1974.
MANUAL de métodos de análise de solos. Rio de Janeiro: Embrapa solos, 2011. 230 p. il. (Documentos, 132).
MORILLO, J. G. et al. Toward precision irrigation for intensive strawberry cultivation. Agricultural Water Management, v. 151, p. 43-51, 2015.
PHOGAT, V. et al. Modelling soil water and salt dynamics under pulsed and continuous surface drip irrigation of almond and implications of system design. Irrigation Science, v. 30, n. 4, p. 315-333, 2012.
PHOGAT, V. et al. Evaluation of soil plant system response to pulsed drip irrigation of an almond tree under sustained stress conditions. Agricultural Water Management, v. 118, p. 1-11, 2013.
SKAGGS, T. H.; TROUT, T. J.; ROTHFUSS, Y. Drip irrigation water distribution patterns: effects of emitter rate, pulsing, and antecedent water. Soil Science Society of America Journal, v. 74, n. 6, p. 1886-1896, 2010.
SOUZA, C. F.; FOLEGATTI, M. V. Spatial and temporal characterization of water and solute distribution patterns. Scientia Agricola, v. 67, n. 1, p. 9-15, 2010.
WORLD REFERENCE BASE FOR SOIL RESOURCES. WRB: a framework for international classification, correlation and communication. Rome: IUSS: ISRIC: FAO, 2014. (World Soil Resources Reports, 106).

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