Crop coefficients for peanut evapotranspiration |
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| Institution: | 1. Department BIOSystem Engineering - Gembloux Agro-Bio Tech, University of Liege, Avenue Maréchal Juin 27, B-5030 Gembloux, Belgium;2. Dipartimento di Scienze Agrarie, Università degli Studi di Bologna, V.le Fanin 40, 40127 Bologna, Italy;3. wildFIRE Lab, Hatherly Laboratories, University of Exeter, Exeter EX4 4PS, UK;4. CNRS; Institute of Ecology and Environment Paris (IEES, UMR UPMC-UPEC-INRA -CNRS - IRD), Campus AgraParisTech, Thiverval–Grignon, France;5. Geography Department, Swansea University, Singleton Park, Swansea SA28PP, UK;6. Dipartimento di Scienze delle Produzioni Agroalimentari e dell''Ambiente (DISPAA), Università degli Studi di Firenze, Piazzale delle Cascine 28, 50144 Firenze, Italy |
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| Abstract: | Meteorological and soil moisture data were collected from field sites in Caddo County, Oklahoma, during the 1984 and 1985 irrigation seasons. Analysis of alfalfa (Medicago sativa L.) water use data enabled calibration of the modified Penman equation for reference crop evapotranspiration (et). A crop coefficient relationship for Spanish peanuts (Arachis hypogaea L.) was developed from measurements at well-watered sites. This et relationship was used in a simple water balance model, and the resulting estimates of soil water status agreed well with field observations. |
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