| Treatment |
| Oil Concentration in Seed (g∙kg−1) | ||||
| No. | S Source/Time/Method |
| 2011 | 2012 | 2013 | Mean |
| 1 | Control (No S Fertilizer) |
| 461 | 443 | 450 | 451 |
| 2 | RRES Broadcast Autumn |
| 468 | 464 | 481 | 471 |
| 3 | RRES Broadcast Spring Pre-Till |
| 460 | 460 | 480 | 467 |
| 4 | RRES Broadcast Spring Pre-Emergence |
| 469 | 482 | 481 | 477 |
| 5 | RRES Spring Sideband |
| 461 | 463 | 469 | 464 |
| 6 | RRES Spring Seedrow-Placed |
| 458 | 466 | 474 | 466 |
| 7 | Potassium Sulphate Broadcast Autumn |
| 481 | 461 | 484 | 475 |
| 8 | Potassium Sulphate Broadcast Spring Pre-Till |
| 478 | 470 | 482 | 477 |
| 9 | Potassium Sulphate Broadcast Spring Pre-Emergence |
| 483 | 465 | 474 | 474 |
| 10 | Potassium Sulphate Spring Sideband |
| 471 | 475 | 483 | 476 |
| 11 | Potassium Sulphate Spring Seedrow-Placed |
| 480 | 448 | 480 | 469 |
|
| LSD0.05 |
| 12 | 16 | 9 | 9 |
|
| |
| 4.2*** | 5.6** | 3.2*** | 3.0*** |