| Forage Crop × Cut 1 Date Interaction Effects | ||||
| Time of first harvest | Cut 1 | Cut 2 | Total | |
| Alfalfa | Late June | 4030g | 3607a | 7637ef |
| Early July | 5928cde | 3659a | 9588b | |
| Late July | 6272cd | 2362bc | 8633cd | |
| Late August | 5735de | 822e | 6556g | |
| Bromegrass | Late June | 4784f | 2537b | 7321efg |
| Early July | 6154cd | 1782d | 7936de | |
| Late July | 6530bc | 670e | 7200fg | |
| Late August | 7383a | 231f | 7614ef | |
| Alfalfa + Bromegrass | Late June | 5374ef | 3830a | 9204bc |
| Early July | 7060ab | 3568a | 10628a | |
| Late July | 7343a | 2116cd | 9460bc | |
| Late August | 7085ab | 527ef | 7612ef | |
| P values | 0.0443 | <0.0001 | <0.0001 | |
| SEM | 370 | 603 | 473 | |
| Forage Crop Means | ||||
| Crop |
| Cut 1 | Cut 2 | Total |
| Alfalfa |
| 5491c | 2612a | 8104b |
| Bromegrass |
| 6213b | 1305b | 7518b |
| Alfalfa + Bromegrass |
| 6716a | 2510a | 9226a |
| P values |
| 0.0006 | <0.0001 | 0.0014 |
| SEM |
| 306 | 595 | 422 |
| Cut 1 Date Means | ||||
| Cut date |
| Cut 1 | Cut 2 | Total |
| Late June |
| 4729b | 3325a | 8054b |
| Early July |
| 6381a | 3003b | 9384a |
| Late July |
| 6715a | 1716c | 8431b |
| Late August |
| 6734a | 527d | 7261c |
| P values |
| <0.0001 | <0.0001 | <0.0001 |
| SEM |
| 308 | 593 | 400 |
| Fertility Means | ||||
| Fertility |
| Cut 1 | Cut 2 | Total |
| Unfertilized |
| 5838b | 2101a | 7939b |
| Fertilized |
| 6442a | 2184a | 8625a |
| P values |
| <0.0001 | 0.1997 | <0.0001 |
| SEM |
| 291 | 591 | 387 |