| CM | Cut Maize |
| G | Seeded with grass |
| HU | Harrowed unweathered |
| HU/G | Harrowed unweathered/seeded with grass |
| HU/PV | Harrowed unweathered/partial vegetation |
| HU/R | Harrowed unweathered/rolled |
| HU/S | Harrowed unweathered/stubble |
| HVS | Harvested stubble |
| HW | Harrowed weathered |
| HW/CM | Harrowed weathered/cut maize |
| HW/G | Harrowed weathered/seeded with grass |
| HW/PV | Harrowed weathered/partial vegetation |
| HW/R | Harrowed weathered/rolled |
| HW/S | Harrowed weathered/stubble |
| HW/S/PV | Harrowed weathered/stubble/partial vegetation |
| PU | Ploughed unweathered |
| PU/PV | Ploughed unweathered/partial vegetation |
| PV | Partial vegetation |
| PV/G | Partial vegetation/seeded with grass |
| PV/V | Partial vegetation/vines |
| PW | Ploughed weathered |
| PW/PV | Ploughed weathered/partial vegetation |
| PW/S | Ploughed weathered/stubble |
| R | Rolled |
| S | Stubble |
| S/PV | Stubble/partial vegetation |
| SD | Seeded |
| V | Vegetation
|