Crop coefficients for peanut evapotranspiration

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 cr...

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Bibliographic Details
Published in:Agricultural water management 1988, Vol.15 (2), p.155-164
Main Authors: Elliott, Ronald L, Harp, Sam L, Grosz, Gerald D, Kizer, Michael A
Format: Article
Language:English
Subjects:
Agricultural and forest climatology and meteorology. Irrigation. Drainage
Agricultural and forest meteorology
Agronomy. Soil science and plant productions
ARACHIS HYPOGAEA
Biological and medical sciences
CONTENIDO DE AGUA EN EL SUELO
EVAPOTRANSPIRACION
EVAPOTRANSPIRATION
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
MEDICAGO SATIVA
OKLAHOMA
SOIL WATER CONTENT
TENEUR EN EAU DU SOL
Water balance and requirements. Evapotranspiration
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Summary: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.
ISSN:0378-3774
1873-2283
DOI:10.1016/0378-3774(88)90108-4