Evapotranspiration of Beans (Phaseolus Vulgaris L.) for Isparta Conditions

Authors : Yusuf UÇAR, Abdullah KADAYIFÇI, H İbrahim YILMAZ, Nevruz YARDIMCI

Pages : 1-7

View : 22 | Download : 67

Publication Date : 2005-04-25

Article Type : Research Paper

Abstract :This study was conducted to measure actual evapotranspiration insert ignore into journalissuearticles values(ET); of beans insert ignore into journalissuearticles values(Phaseolus vulgaris L.); in the Experiment Farm of the Agricultural Faculty, the University of Süleyman Demirel. Irrigation was performed every ten-day-period and amount of evaporation from class A pan during this period was ap-plied as the amount of irrigation water. Actual ET values were obtained by measuring changes in soil water content for decade periods during whole growing season. Measured actual ET values were compared with the reference or potential ET values calculated by the methods of FAO modification of Penman insert ignore into journalissuearticles values(P-FAO);, FAO modification of Class A Pan Evaporation insert ignore into journalissuearticles values(A-FAO);, Jensen-Haise insert ignore into journalissuearticles values(J-H);, Penman-Monteith insert ignore into journalissuearticles values(P-M);, Hargreaves insert ignore into journalissuearticles values(H); and Christiansen-Hargreaves modification of Class A pan insert ignore into journalissuearticles values(A-CH);. In the comparison; correlation coefficients of the relationships between actual ET and estimated ET, ratio of calculated ET using different methods to the measured actual ET as percentage, root mean square error insert ignore into journalissuearticles values(RMS); and seasonal mean crop coefficients insert ignore into journalissuearticles values(kc); were the criteria to evaluate suitability of the methods. As a result, it was found that most suitable estimation method was Jensen-Haise method insert ignore into journalissuearticles values(J-H);. In addition, the crop coef-ficient insert ignore into journalissuearticles values(kc); curve has been prepared for this method.
Keywords : Fasulye Phaseolus vulgaris L, bitki su tüketimi, bitki su tüketimi tahmin yöntemleri