Table 1.
Effect of Cut (1–5 where 1,3 and 5 is the first, second and third cut in the three-cut system, and 2 and 4 is the first and second cut in the two-cut system, respectively) and crop (T, timothy; T + RC, timothy + red clover; RG, perennial ryegrass) on dry matter yield per cut and total annual yield (n = 3).
| Harvest | Three cuts | Two cuts | SEM | P value | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T | T + RC | RG | T | T + RC | RG | Cut | Crop | Cut × crop | C1 | C2 | C3 | C4 | C5 | |||
| DM yield, g/m2 | 1st | 465 | 458 | 602 | 729 | 740 | 837 | 21.72 | < 0.001 | < 0.001 | 0.023 | < 0.001 | < 0.001 | 0.215 | < 0.001 | < 0.001 |
| 2nd | 370 | 263 | 452 | 419 | 331 | 404 | ||||||||||
| 3rd | 198 | 196 | 240 | |||||||||||||
| Total | 1034 | 917 | 1294 | 1148 | 1071 | 1240 | 28.63 | 0.006 | < 0.001 | 0.004 | – | – | – | < 0.001 | 0.003 | |
SEM is the standard error of the means. C1 is the contrast three versus two cuts per season, overall; C2 is the contrast three versus two cuts per season in the 1st cut; C3 is the contrast three versus two cuts per season in the 2nd cut; C4 is the contrast T versus RG; C5 is contrast T versus T + RC.