Crops with similar N status and canopy cover can be grouped together.
Table 1: Grouping Options for fodder crops
| CROP | GROUPING CATEGORY | COMMENTS |
| Kale | Winter fodder | If similar yields and sowing times are provided kale, swedes and turnips can be grouped. |
| Swedes | Winter fodder | |
| Turnip bulbs | Winter fodder | |
| Rape | Summer fodder | If similar yields and sowing times are provided, leafy turnips and rape can be grouped. |
| Turnip leafy | Summer fodder | |
| Fodder beet | Don’t group | It is best to leave fodder beet on its own due to it having a lower N content than the brassica crops. |