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Determining Crop and Pan Coefficients for Sugar Beet and Potato Crops under Cool Season Semiarid Climatic Conditions
Author(s) -
Sahin U.,
Kiziloglu F. M.,
Anapali O.,
Okuroglu M.
Publication year - 2007
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.2006.00248.x
Subject(s) - crop coefficient , sugar beet , evapotranspiration , agronomy , pan evaporation , crop , growing season , sugar , environmental science , water balance , biology , ecology , biochemistry , geotechnical engineering , engineering
This study was conducted in a region with semiarid cool climatic conditions during the period from May to October in the years 2003 and 2004, respectively. Actual evapotranspiration (ET c ) of sugar beet and potato crops was calculated according to the water balance approach. Reference evapotranspiration (ET o ) was calculated with FAO Penman–Monteith equation. Evaporation (E pan ) was measured by using class A pan. Seasonal mean ET c was determined as 492.9 mm for sugar beet and 445.2 mm for potato. Seasonal mean pan coefficient (k p = ET o /E pan ) was determined as 0.74, and the seasonal mean crop coefficient (k c = ET c /ET o ) was determined as 0.65 for sugar beet 0.60 for potato.