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| Web URL(s): | http://www.irrigation.org/IA/FileUploads/IA/Resources/TechnicalPapers/2007/ReducingRunoffLossesOfIrrigationWaterByImprovingCulturalPractices.pdf
Last checked: 10/13/2017
Requires: PDF Reader |
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| Publication Type:
| Proceedings |
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| Author(s): | Mitra, Sowmya;
Fam, Magdy;
Malazian, Armen;
Vis, Eudell;
Kumar, Ramesh |
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| Author Affiliation: | Department of Plant Science, California State Polytechnic University, Pomona, CA |
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| Title: | Reducing runoff losses or irrigation water by improving cultural practices |
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| Section: | Turf
Other records with the "Turf" Section
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| Source: | Irrigation Show 2007: Technical Session Proceedings. 2007, p. 23-36. |
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| Publishing Information: | [Falls Church, Virginia]: [Irrigation Association] |
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| # of Pages: | 14 |
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| Keywords: | TIC Keywords: Application methods; Cultural methods; Matric potential; Physiological responses; Runoff control; Soil water relations; Wetting agent evaluation
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| Trade Names: | Dispatch |
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| Abstract/Contents: | "Wetting agents are mainly used to manage water repellency in soils but they do provide other benefits like increase in water retention and reduction in physiological moisture stress in plants. Experiments were conducted at the California State Polytechnic University, Pomona on a loamy sand soil situated on an 8% slope with an established turfgrass maintained under golf course fairway management conditions. The effect of cultural practices like core aerification followed by sand topdressing and application of a wetting agent in reducing runoff of irrigation water was evaluated. Runoff events after the cultural practices and the wetting agent treatment (Dispatch applied at 877 ml/ha) was repeated four times over a time period when the matric potential ranged from 15-40 kPa. An empirical formula based on Horton's equation was used to predict maximum runtime of sprinklers to prevent runoff from turf on slopes. Total irrigation runoff was calculated based on overspray, surface runoff and percolation or seepage over a specified period of time. When Dispatch was added to the irrigation water vertical movement of water was more pronounced than the control (water alone). The least runoff occurred when the soil had the highest matric potential. Dispatch treatments resulted in 43% and 55% higher total wetting surface area at 30 minutes and 60 minutes respectively compared to the water alone treatment. Cultural practices like core aerification, topdressing with sand and using a wetting agent reduced the volume of surface runoff by increasing the infiltration rate and the time period when visible surface runoff was first observed since the start of the irrigation event." |
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| Language: | English |
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| References: | 10 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mitra, S., M. Fam, A. Malazian, E. Vis, and R. Kumar. 2007. Reducing runoff losses or irrigation water by improving cultural practices. p. 23-36. In Irrigation Show 2007: Technical Session Proceedings. [Falls Church, Virginia]: [Irrigation Association]. |
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| Web URL(s):
http://www.irrigation.org/IA/FileUploads/IA/Resources/TechnicalPapers/2007/ReducingRunoffLossesOfIrrigationWaterByImprovingCulturalPractices.pdf
Last checked: 10/13/2017
Requires: PDF Reader |
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MSU catalog number: b9924931 |
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