International Journal of Agricultural Engineering

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Geometrical Model for Determining Soil Water Content Under Sprinkler and Raingun Irrigation System


Affiliations
1 ICAR-Indian Institute of Farming Systems Research, Modipuram (U.P.), India
2 ICAR-Central Institute of Agricultural Engineering, Bhopal (M.P.), India
     

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In India, conventional surface irrigation methods to pressurized irrigation systems are in use. Pressurized irrigation including micro irrigation, sprinkler irrigation system as well as raingun are among the efficient irrigation techniques which may achieve field level application efficiency in the range of 60-95 per cent. These have vast potential and suitable for almost all field crops like wheat, gram, pulses, vegetables, cotton, soya bean, tea, coffee, and other fodder crops. The information on soil water content and wetted depth of wetted zone as well as duration of water application has importance towards uniformity and performance of irrigation system. The water content in geometry of soil wetted zone has importance in irrigation management to deliver required amount of water and nutrients to the plants to realize enhanced crop yield. Estimation of water content of wetted zone soil based on simplified geometry will serve purpose for most of field conditions and also reduces complexities encountered in numerical and analytical methods. A model based on simplified geometry and water volume balance was developed to simulate soil water content, wetting depths and duration of water application through sprinkler and raingun irrigation system. The geometry of wetted soil depth resulting from uniform and non-uniform water application through sprinkler and raingun was considered. With uniform water application the soil wetted zone could take shape of cylinder. However, with non-uniform water application, depth of wetted soil volume reduces towards the periphery of the wetted soil, that may be assumed as curved shape of ellipsoid or parabolic shape. Water volume balance method was considered in wetted geometry to develop model to estimate change in soil water content.

Keywords

Sprinkler, Raingun Irrigation, Geometry Of Wetted Zone Soil, Model, Soil Water Content
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  • ASAE (2001). Test procedure for determining the uniformity of water distribution of center pivot and lateral move irrigation machines equipped with spray or sprinkler nozzles. ANSI/ ASAE Standard S436.1, American Society of Agricultural Engineers, St. Joseph, MI.

  • Ben-Asher, J., Charach, C. and Zemel, A. (1986). Infiltration and water extraction from a trickle irrigation source: the effective hemisphere model. Soil Sci. Soc. Am. J., 50 : 882-887.

  • Dasberg, S. and Or, D. (1999). Drip irrigation. Springer-Verlag, Berlin. 162.

  • Haman, D.Z., Smajstrla, A.G. and Pitts, D.J. (2003). Uniformity of Sprinkler and Microirrigation Systems for Nurseries. BUL321, the Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date June 1997. Reviewed June 2003.

  • Heermann, D.F., Wallender, W.W. and Bos, M.G. (1990). Irrigation efficiency and uniformity. In: Hoffman G.S., Howell, T.A. and Soloman, K.H. (Eds), Management of farm irrigation Geometrical model for determining soil water content under sprinkler & raingun irrigation system system. ASAE, St. Joseph, M.I., pp 125-149.

  • IA (2005). Landscape irrigation scheduling and water management March 2005. Irrigation Association Water Management Committee. Falls Church, VA.190 pp.

  • INCID (1994). Drip irrigation in India. Indian National Committee on Irrigation and Drainage. New Delhi.

  • Jacovides, C.P. and Kontoyiannis, H. (1995). Statistical procedures for the evaluation of evapotranpirating computing models. Agric. Water Manage., 27: 365-371.

  • Keller, J. and Bliesner, R.D. (2000). Sprinkler and Trickle Irrigation. The Blackburn Press, Caldwell, NJ. 652 p.

  • Lafolie F., Bruckler, L., de Cockborne, A.M. and Laboucarie, C. (1997). Modeling the water transport and nitrogen dynamics in irrigated salad crops. Irrig. Sci., 17: 95-104.

  • Li, J. and Rao, M. (2000). Sprinkler water distributions as affected by winter wheat canopy. Irrig. Sci., 20 : 29-35.

  • Narayanamoorthy, A. (2004). Drip irrigation in India: can it solve water scarcity. Water Policy, 6(2): 117-130.

  • Phocides, A. (2001). Handbook on pressurized irrigation techniques, FAO. Rome.

  • Postel, S. (2000). Redesigning irrigated agriculture. In: Stark, L. (Eds). State of the world 2000. W. W. Norton and Co., New York, pp 39-58.

  • Rosegrant, W. Mark (1997). Water Resources in the TwentyFirst Century: Challenges and Implications for Action, Food and Agriculture, and the Environment Discussion Paper 20, International Food Policy Research Institute, Washington D.C., U.S.A., March.

  • RTFM (2004). Report of Task Force on Microirrigation, (Chairman: N. Chandrababu Naidu), Ministry of Agriculture, Government of India.

  • Singh, D.K. (2004). Performance evaluation of subsurface drip irrigation systems. Unpublished Ph.D. Thesis. Indian Agricultural Research Institute, New Delhi, India.

  • Singh, D.K. and Rajput, T.B.S. (2007). Response of lateral placement depths of subsurface drip irrigation on okra (Abelmoschus esculentus). Internat. J. Plant Prod., 1: 73–84.

  • Singh, D.K. and Rajput, T.B.S. (2020). Modeling soil wetting with subsurface drip irrigation using curved wetted geometry. J. Pharmacognosy & Phytochemistry, 9(1): 1961-1964.

  • Singh, D.K., Rajput, T.B.S., Singh, D.K., Sikarwar, H.S., Sahoo, R.N. and Ahmad, T. (2006 a).Performance of subsurface drip irrigation systems with line source of water application in okra field. J. Agric. Eng., 43:23–26.

  • Singh, D.K., Rajput, T.B.S., Singh, D.K., Sikarwar, H.S., Sahoo, R.N. and Ahmad, T. (2006 b).Simulation of soil-wetting pattern with subsurface drip irrigation from line source. Agric. Water Mgmt., 83:130-134.

  • Singh, D.K., Singh, R.M. and Rao, K.V.R. (2010). Scope of subsurface drip irrigation in the state of Chhattisgarh. Agric. Eng. Today, 34 : 24–30.

  • Singh, D.K., Singh, R.M. and Rao, K.V.R. (2013). Model for determining geometry of wetted soil zone under subsurface drip irrigation with point source water application. Curr. Sci., 105 (6): 832-837.

  • Warrick, A.W. and Nielson, D.R. (1980). Spatial variability of soil physical properties in the field. In Applications in Soil Physics (ed.Hillel, D.), Academic Press, New York, 1980, p. 319.

  • Willmott, C.J. (1982). Some comments on the evaluation of model performance. Bull. Am. Meteorol. Soc., 63(11): 1309–1313.


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  • Geometrical Model for Determining Soil Water Content Under Sprinkler and Raingun Irrigation System

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Authors

D.K. Singh
ICAR-Indian Institute of Farming Systems Research, Modipuram (U.P.), India
R. Kishore
ICAR-Central Institute of Agricultural Engineering, Bhopal (M.P.), India

Abstract


In India, conventional surface irrigation methods to pressurized irrigation systems are in use. Pressurized irrigation including micro irrigation, sprinkler irrigation system as well as raingun are among the efficient irrigation techniques which may achieve field level application efficiency in the range of 60-95 per cent. These have vast potential and suitable for almost all field crops like wheat, gram, pulses, vegetables, cotton, soya bean, tea, coffee, and other fodder crops. The information on soil water content and wetted depth of wetted zone as well as duration of water application has importance towards uniformity and performance of irrigation system. The water content in geometry of soil wetted zone has importance in irrigation management to deliver required amount of water and nutrients to the plants to realize enhanced crop yield. Estimation of water content of wetted zone soil based on simplified geometry will serve purpose for most of field conditions and also reduces complexities encountered in numerical and analytical methods. A model based on simplified geometry and water volume balance was developed to simulate soil water content, wetting depths and duration of water application through sprinkler and raingun irrigation system. The geometry of wetted soil depth resulting from uniform and non-uniform water application through sprinkler and raingun was considered. With uniform water application the soil wetted zone could take shape of cylinder. However, with non-uniform water application, depth of wetted soil volume reduces towards the periphery of the wetted soil, that may be assumed as curved shape of ellipsoid or parabolic shape. Water volume balance method was considered in wetted geometry to develop model to estimate change in soil water content.

Keywords


Sprinkler, Raingun Irrigation, Geometry Of Wetted Zone Soil, Model, Soil Water Content

References