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IRRIGATION REQUIREMENTS ARE LOWER THAN THOSE USUALLY PRESCRIBED FOR A MAIZE CROP IN SOUTHERN BRAZIL

  • LUIZ R. SOBENKO (a1), TAMIRES T. SOUZA (a1), ALEXANDRE O. GONÇALVES (a1), VITOR J. M. BIANCHINI (a1), EVANDRO H. F. M. SILVA (a1), LAÍS T. SOUZA (a1) and FÁBIO R. MARIN (a1)...
Summary

Due to the lack of basic information on water required by maize (Zea mays L.) in Brazil, the large amount of water applied usually exceeds crop requirements, wasting water and energy. In this study, we measured crop evapotranspiration (ETc) as evaporative heat flux from a centre pivot-irrigated maize plantation in Southern Brazil during winter and summer seasons, using the Bowen ratio method to evaluate how the degree of canopy-atmosphere coupling affects crop water needs and irrigation management. Irrigation requirements were determined by comparing ETc with reference evapotranspiration (ETo), derived from the Penman–Monteith equation and expressed as the ETc/ETo (Kc) ratio. In this study, the average Kc values obtained were 1.31 and 0.90 for the winter and summer, respectively. Using aerodynamic and canopy resistance measurements, the decoupling factor (Ω) was computed. Ω values tending to zero (0.09 and 0.20 for winter and summer, respectively) showed that strong coupling of maize plants to the atmosphere and sensitivity to high air temperatures, vapour pressure deficits and wind speed caused variations in Kc in relation to ETo ranges. During the experimental period, the Kc value ranged from 0.92 when the ETo exceeded 4 mm d−1 to 1.64 when the ETo was less than 2 mm d−1.

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Corresponding author
Corresponding author. Email: fabio.marin@usp.br
References
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Agência Nacional de Águas (ANA). (2016). Levantamento da agricultura irrigada por pivôs centrais no Brasil – 2014: Relatório síntese. 33.
Allen, R. G., Pereira, L. S., Raes, D. and Smith, M. (1998). Crop evapotranspiration: Guidelines for computing crop water requirements. Irrigation and Drainage Paper 56, Food and Agriculture Organization of the United Nations, Rome, Italy, 300.
Carvalho, J. R. P., Assad, E. D., Evangelista, S. R. M. and Pinto, H. S. (2013). Estimation of dry spells in three Brazilian regions-analysis of extremes. Atmospheric Research 132–133:1221.
Choudhury, B. (1983). Simulating the effects of weather variables and soil water potential on a corn canopy temperature. Agricultural Meteorology 29:169182.
Companhia Nacional de Abastecimento (CONAB). (2017). Acompanhamento da safra brasileira de grãos: Safra 2016/17. 144.
Denmead, O. T. and Shaw, R. H. (1962). Availability of soil water to plants as affected by soil moisture content and meteorological conditions. Agronomy Journal 45:385390.
Djaman, K., Irmak, S., Rathje, W. R., Martin, D. L. and Eisenhauer, D. E. (2013). Maize evapotranspiration, yield production functions, biomass, grain yield, harvest index, and yield response factors under full and limited irrigation. Transactions of the ASABE 56 (2):273293.
Doorenbos, J. and Pruitt, W. O. (1977). Crop water requirements. Irrigation and Drainage Paper 24 (rev.), Food and Agricculture Organization of the United Nations, Rome, Italy, 144.
Facchi, A., Gharsallah, O., Corbari, C., Masseroni, D., Mancini, M. and Gandolfi, C. (2013). Determination of maize crop coefficients in humid climate regime using the eddy covariance technique. Agricultural Water Management 130:131141.
González, M. G., Ramos, T. B., Carlesso, R., Paredes, P., Petry, M. T., Martins, J. D., Aires, N. P. and Pereira, L. S. (2015). Modelling soil water dynamics of full and deficit drip irrigated maize cultivated under a rain shelter. Biosystems Engineering 132:118.
Hirasawa, T. and Hsiao, T. C. (1999). Some characteristics of reduced leaf photosynthesis at midday in maize growing in the field. Field Crops Research 62:5362.
Irmak, S., Djaman, K. and Rudnick, D. R. (2016). Effect of full and limited irrigation amount and frequency on subsurface drip-irrigated maize evapotranspiration, yield, water use efficiency and yield response factors. Irrigation Science 34:271286.
Jones, H. G. (1992). Plants and Microclimate: A Quantitative Approach to Environmental Plant Physiology. New York, NY: Cambridge University Press.
Kang, S., Gu, B., Du, T. and Zhang, J. (2003). Crop coefficient and ratio of transpiration to evapotranspiration of winter wheat and maize in a semi-humid region. Agricultural Water Management 59:239254.
Marin, F. R. and Angelocci, L. R. (2011). Irrigation requirements and transpiration coupling to the atmosphere of a citrus orchard in Southern Brazil. Agricultural Water Management 98:10911096.
Marin, F. R., Angelocci, L. R., Nassif, D. S. P., Costa, L. G., Vianna, M. S. and Carvalho, K. S. (2016). Crop coefficient changes with reference evapotranspiration for highly canopy-atmosphere coupled crops. Agricultural Water Management 163:139145.
Marin, F. R., Angelocci, L. R., Righi, E. Z. and Sentelhas, P. C. (2005). Evapotranspiration and irrigation requirements of a coffee plantation in Southern Brazil. Experimental Agriculture 41 (02):187197.
Martin, T. A., Hinckley, T. M., Meinzer, F. C. and Sprugel, D. G. (1999). Boundary layer conductance, leaf temperature and transpiration of Abies amabilis branches. Tree Physiology 19:435443.
McNaughton, K. G. and Jarvis, P. G. (1983). Predicting effects of vegetation changes on transpiration and evaporation. In Water Deficit and Plant Growth, 7, 147 (Ed Koslowski, T. T.). New York, NY: Academic Press.
Nassif, D. S. P., Marin, F. R. and Costa, L. G. (2014). Evapotranspiration and transpiration coupling to the atmosphere of sugarcane in Southern Brazil: Scaling up from leaf to field. Sugar Tech 16 (3):250254.
Pereira, L. S., Cordery, I. and Iacovides, I. (2012). Improved indicators of water use performance and productivity for sustainable water conservation and saving. Agricultural Water Management 18:3951.
Perez, P. C. F., Ibanez, M. and Rosell, J. (1999). Assessment of reliability of Bowen ratio method for partitioning fluxes. Agricultural and Forest Meteorology 97 (3):141150.
Piccinni, G., Ko, J., Marek, T. and Howell, T. (2009). Determination of growth-stage-specific crop coefficients (KC) of maize and sorghum. Agricultural Water Management 96:16981704.
Rosa, R. D., Paredes, P., Rodrigues, G. C., Fernando, R. M., Alves, I., Pereira, L. S. and Allen, R. G. (2012). Implementing the dual crop coefficient approach in interactive software: 2. Model testing. Agricultural Water Management 103:6277.
Tardieu, F., Zhang, J. and Gowing, D. J. G. (1993). Stomatal control by both [ABA] in the xylem sap and leaf water status: A test of a model for droughted or ABA-fed field-grown maize. Plan, Cell and Environment 16:413420.
Taylor, N. J., Mahohoma, W., Vahrmeijer, J. T., Gush, M. B., Allen, R. G. and Annandale, J. G. (2015). Crop coefficient approaches based on fixed estimates of leaf resistance are not appropriate for estimating water use of citrus. Irrigation Science 33 (2):153166.
Turner, N. C. (1968). Stomatal resistance to transpiration in three contrasting canopies. Crop Science 9 (3):303307.
Turner, N. C. (1974). Stomatal behavior and water status of maize, sorghum, and tobacco under field conditions. Plant Physiology 53:360365.
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Experimental Agriculture
  • ISSN: 0014-4797
  • EISSN: 1469-4441
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