Northern Prairie Wildlife Research Center
| Treatment | Control | ||||
|---|---|---|---|---|---|
| Spring grazing |
Autumn grazing |
Autumn-and-spring grazing |
Season-long grazing |
||
| Grazing period | Early May-mid Jun | Early Sep-mid Oct | Early Sep-mid Oct (F) Early May-mid Jun (S) |
Mid Jun-late Sep | none |
| Stocking density (hd/ha) |
3.7 | 3.11 | A:0.97 S:2.8 |
1.0 | |
| Grazing rate (AUM/ha) |
3.1 | 3.2 | A:1.28 S:2.85 |
2.45 | |
| Grazing schedulea | |||||
| 1981 | Rest | Autumn graze | Autumn graze | Rest | Rest |
| 1982 | Spring graze | Rest | Spring graze | Graze | Rest |
| 1983 | Rest | Rest | Rest | Graze | Rest |
| 1984 | Rest | Autumn graze | Rest | Graze | Rest |
| 1985 | Spring graze | Rest | Autumn graze | Graze | Rest |
| 1986 | Rest | Rest | Spring graze | Rest | Rest |
| 1987 | Rest | Rest | Rest | Rest | Rest |
| a Each of 3 Waterfowl Production Areas received the same grazing schedule. | |||||