Water consumption of okra (Abelmoschus esculentus) in the Jordan Valley
1989
Ghawi, I. | Shatanawi, M.S. | Sharaiha, R.K.
Values of water consumption of okra (Abelmoschus esculentus) in the Jordan Valley measured by lysimeter were compared with the calculated values of potential evapotranspiration using modified Blaney-Criddle, modified Jensen-Haise, Hargreaves, and class-A pan evaporation methods. Crop coefficient values (Kc) for these methods were determined. The time variation of Kc values had similar characteristics for all methods. Obtained Kc values and season ET(mm) for the methods were as follows: Blaney-Criddle: Season ET,mm(Kc=1.0) 994.2; average Kc 0.36 for June, 0.52 for July, 0.69 for August and 0.50 for September. Class-A pan: Season ET,mm(Kc=1.0) 942.3; average Kc was 0.36 for June, 0.65 for July, 0.70 for August and 0.56 for September. Jensen-Haise: Season ET,mm(Kc=1.0) 805.9; average Kc for June was 0.43, 0.65 for July, 0.84 for August and 0.64 for September. Hargreaves: Season ET,mm(Kc=1.0) 682.1; average Kc for June was 0.51, 0.78 for July, 0.99 for August and 0.77 for September
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