| Crop type | Furrow | Center Pivot | Contour | Straight Levee | Multiple Inlet | Zero-Grade | ||
| (a) Sites under Each Method | ||||||||
| Corn | 114 (92%)a | 10 (8%) |
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| Cotton | 75 (86%) | 12 (14%) |
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| Soybean | 120 (48%) | 20 (8%) | 23 (9%) | 83 (34%) |
| 2 (1%) | ||
| Rice |
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| 31 (20%) | 88 (56%) | 18 (12%) | 18 (12%) | ||
| (b) Water Use (Megaliters per Hectare) | ||||||||
| Corn | 3.4 | 1.5 |
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| Cotton | 1.8 | 1.5 |
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| Soybeans | 2.4 | 1.8 | 2.7 | 2.1 |
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| Rice |
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| 11.0 | 9.8 | 8.5 | 5.8 | ||