| Treatment code | Treatment | Plant spacing | Plant density (plant ha−1) |
| T1 | Wheat | 25 cm × 20 cm | 200,000 |
| T2 | Soybean | 20 cm × 20 cm | 250,000 |
| T3 | Wheat-soybean | 25 cm × 20 cm - 40 cm × 20 cm | 200,000 - 125,000 |
| T4 | Wheat-soybean | 50 cm × 20 cm - 20 cm × 20 cm | 100,000 - 250,000 |
| T5 | Wheat-soybean | 25 cm × 20 cm - 20 cm × 20 cm | 200,000 - 250,000 |
| T6 | Wheat-soybean | 50 cm × 20 cm - 40 cm × 20 cm | 100,000 - 125,000 |