Table 6 Global crop water requirement with 3 different kc values during the non-growing season of the crop.
From: The green and blue crop water requirement WATNEEDS model and its global gridded outputs
Crop | kc = 1.0 | kc = 0.1 | kc = 0.5 | |||
|---|---|---|---|---|---|---|
Green Water [km3] | Blue Water [km3] | Green Water [km3] | Blue Water [km3] | Green Water [km3] | Blue Water [km3] | |
Wheat | 639 | 219 | 742 | 177 | 692.6 | 197.1 |
Maize | 593 | 87 | 650 | 73 | 627.2 | 76.3 |
Rice | 628 | 279 | 661 | 258 | 636.3 | 272.8 |
Barley | 148 | 11 | 167 | 10 | 155.1 | 10.2 |
Rye | 39 | 1 | 41 | 1 | 39.2 | 1.0 |
Millet | 116 | 4 | 126 | 4 | 118.3 | 4.0 |
Sorghum | 157 | 12 | 172 | 11 | 164.2 | 10.7 |
Soybeans | 366 | 16 | 390 | 14 | 380.9 | 14.0 |
Sunflower | 71 | 4 | 84 | 4 | 77.0 | 3.9 |
Potatoes | 61 | 13 | 64 | 12 | 61.5 | 12.7 |
Cassava | 132 | 0 | 135 | 0 | 131.1 | 0.0 |
Sugar cane | 166 | 63 | 166 | 63 | 162.2 | 65.1 |
Sugar beets | 20 | 9 | 22 | 8 | 21.1 | 8.4 |
Oil palm | 99 | 0 | 99 | 0 | 99.7 | 0.0 |
Rapeseed | 53 | 8 | 63 | 6 | 56.8 | 6.7 |
Groundnuts | 83 | 8 | 90 | 7 | 84.7 | 7.3 |
Pulses | 156 | 24 | 182 | 21 | 170.6 | 21.9 |
Citrus | 42 | 22 | 42 | 22 | 42.6 | 21.5 |
Date palm | 2 | 11 | 2 | 11 | 2.0 | 10.6 |
Grapes | 26 | 7 | 26 | 7 | 26.8 | 7.1 |
Cotton | 119 | 89 | 131 | 82 | 127.0 | 85.4 |
Cocoa | 61 | 0 | 61 | 0 | 60.4 | 0.0 |
Coffee | 96 | 1 | 96 | 1 | 95.8 | 1.0 |
Others perennial | 476 | 82 | 476 | 82 | 475.5 | 81.3 |
Fodder grasses | 569 | 93 | 569 | 93 | 567.0 | 91.8 |
Others annual | 319 | 62 | 367 | 52 | 338.0 | 57.5 |
Total | 5234 | 1127 | 5626 | 1019 | 5414 | 1068 |
