Your search found 5 records
1 Smeal, D.; Kallsen, C. E.; Sammis, T. W. 1991. Alfalfa yield as related to transpiration, growth stage and environment. Irrigation Science, 12(2):79-86.
(Location: IWMI-HQ Call no: PER Record No: H08499)
(0.83 MB)
2 Asare, D. K.; Sammis, T. W.; Smeal, D.; Zhang, H. 1995. Atrazine dynamics in a field irrigated soil. In Heatwole, C. (Ed.), Water quality modeling: Proceedings of the International Symposium, April 2-5, 1995, Hyatt Hotel Orlando, Orlando, Florida. St. Joseph, MI, USA: ASAE. pp.31-40.
Irrigation water ; Models ; Water pollution ; Simulation ; Soil moisture ; Soil properties ; Pesticide residues / USA / New Mexico
(Location: IWMI-HQ Call no: 333.91 G000 HEA Record No: H018692)
A study was conducted to assess atrazine transport and distribution in a field soil in relation to four levels of early-season irrigation, with the overall objective of developing water management strategies to minimize the potential for atrazine pollution of water resources. The specific objective was to use the measured atrazine data to evaluate and compare the performance of two conceptually different contaminant transport models, IRRSCHM and LEACHP. The measured atrazine transport and distribution in soil profiles were directly related to levels of early-season and seasonal irrigation water. Generally, the measured and predicted atrazine data agreed within one order of magnitude, suggesting that both models gave reasonably good approximation of measured soil atrazine. IRRSCHM, a field-capacity and mixing-cell management oriented model, performed better than LEACHP, a classical deterministic model that uses Richard's and Convection-Dispersion Equations for simulating water and pesticide dynamics.
3 Al-Jamal, M. S.; Sammis, T. W.; Ball, S.; Smeal, D.. 2000. Computing the crop water production function for onion. Agricultural Water Management, 46(1):29-41.
Water requirements ; Crop production ; Evapotranspiration ; Water deficit ; Sprinkler irrigation ; Drip irrigation ; Subsurface irrigation ; Experiments ; Nitrogen / USA / New Mexico
(Location: IWMI-HQ Call no: PER Record No: H026841)
4 Asare, D. K.; Sammis, T. W.; Smeal, D.; Zhang, H.; Sitze, D. O. 2001. Modeling an irrigation management strategy for minimizing the leaching of atrazine. Agricultural Water Management, 48(3):225-238.
Irrigation management ; Simulation models ; Calibrations ; Leaching ; Water pollution ; Pesticide residues ; Irrigated farming / USA
(Location: IWMI-HQ Call no: PER Record No: H028271)
5 Smeal, D; O’Neill, M. K.; Arnold, R. N. 2005. Forage production of cool season pasture grasses as related to irrigation. Agricultural Water Management, 76(3):224-236.
(Location: IWMI-HQ Call no: PER Record No: H037144)
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