Determining Crop and Pan Coefficients for Sugar Beet and Potato Crops under Cool Season Semiarid Climatic Conditions |
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| Authors: | U Sahin F M Kiziloglu O Anapali M Okuroglu |
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| Institution: | Authors' address: Prof. Dr U. Sahin (corresponding author;e-mail: ), Asst Prof. Dr F. M. Kiziloglu, Prof. Dr O. Anapali and Prof. Dr M. Okuroglu, Faculty of Agriculture, Agricultural Structures and Irrigation, Ataturk University, Erzurum, Turkey |
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| Abstract: | 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 (ETc) of sugar beet and potato crops was calculated according to the water balance approach. Reference evapotranspiration (ETo) was calculated with FAO Penman–Monteith equation. Evaporation (Epan) was measured by using class A pan. Seasonal mean ETc was determined as 492.9 mm for sugar beet and 445.2 mm for potato. Seasonal mean pan coefficient (kp = ETo/Epan) was determined as 0.74, and the seasonal mean crop coefficient (kc = ETc/ETo) was determined as 0.65 for sugar beet 0.60 for potato. |
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| Keywords: | crop coefficient evapotranspiration pan coefficient potato sugar beet |
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