Table 1 Reference crop evapotranspiration rate (ETo) calculated with CROPWAT V.8.00 computer program from meteorological data under Sharkia Governorate conditions using FAO—Penman–Monteith equation according to Admasu et al. 2014 (season 2021)
Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ETo (100%) | 2.17 | 2.73 | 3.69 | 5.24 | 6.76 | 6.79 | 6.77 | 6.27 | 5.05 | 3.89 | 2.75 | 2.07 | |
Crop coefficient | 0.61 | 0.64 | 0.67 | 0.72 | 0.78 | 0.81 | 0.80 | 0.97 | 0.46 | 0.51 | 0.64 | 0.58 | |
ETc (100%) | 1.32 | 1.75 | 2.47 | 3.77 | 5.27 | 5.50 | 5.42 | 6.08 | 2.32 | 1.98 | 1.76 | 1.20 | |
W.R (m3/fed./Day) | 5.56 | 7.34 | 10.38 | 15.85 | 22.15 | 23.10 | 22.75 | 25.54 | 9.76 | 8.33 | 7.39 | 5.04 | |
W.R (m3/ fed. Month) | 166.79 | 220.15 | 311.26 | 475.37 | 664.37 | 692.99 | 682.42 | 766.32 | 292.70 | 249.97 | 221.76 | 151.28 | 4895.36 |
ETo (75%) | 1.63 | 2.05 | 2.77 | 3.93 | 5.07 | 5.09 | 5.08 | 4.70 | 3.79 | 2.92 | 2.06 | 1.55 | |
ETc (75%) | 0.99 | 1.31 | 1.86 | 2.83 | 3.95 | 4.12 | 4.06 | 4.56 | 1.74 | 1.49 | 1.32 | 0.90 | |
W.R (m3/fed./Day) | 4.18 | 5.51 | 7.79 | 11.88 | 16.61 | 17.32 | 17.07 | 19.15 | 7.32 | 6.25 | 5.54 | 3.78 | |
W.R (m3/ fed. Month) | 125.28 | 165.31 | 233.84 | 356.53 | 498.28 | 519.49 | 512.06 | 574.43 | 219.67 | 187.64 | 166.12 | 113.27 | 3671.93 |
ETo (50%) | 1.09 | 1.37 | 1.84 | 2.62 | 3.38 | 3.40 | 3.39 | 3.14 | 2.53 | 1.95 | 1.38 | 1.04 | |
ETc (50%) | 0.66 | 0.88 | 1.23 | 1.89 | 2.64 | 2.75 | 2.71 | 3.05 | 1.16 | 0.99 | 0.88 | 0.60 | |
W.R (m3/fed./Day) | 2.79 | 3.68 | 5.18 | 7.92 | 11.07 | 11.57 | 11.39 | 12.79 | 4.89 | 4.18 | 3.71 | 2.53 | |
W.R (m3/ fed. Month) | 83.78 | 110.48 | 155.33 | 237.69 | 332.19 | 347.00 | 341.71 | 383.77 | 146.64 | 125.31 | 111.28 | 76.00 | 2451.18 |