| Varieties | Treatments | Number of plants | Marketable ears biomass (%) | Unmarketable ears biomass (%) | Yield (kg∙ha−1) |
| 07SADVE | maize mulch | 60.75 | 49.81 | 47.41 | 2658.50 |
| 08SADVE1 | maize mulch | 64.75 | 50.07 | 55.74 | 2905.80 |
| 09SADVEF2 | maize mulch | 57.75 | 57.03 | 48.23 | 2586.80 |
| Mudishi1 | maize mulch | 53.00 | 50.84 | 43.17 | 2467.00 |
| Mudishi3 | maize mulch | 62.50 | 47.99 | 48.11 | 3474.60 |
| Samaru | maize mulch | 59.25 | 54.67 | 50.05 | 2689.00 |
| VP0538 | maize mulch | 61.25 | 48.55 | 61.70 | 2222.40 |
| ZM523 | maize mulch | 61.50 | 47.26 | 47.44 | 2490.10 |
| Mean | maize mulch | 60.09 | 50.77 | 50.23 | 2686.77 |
| 07SADVE | maize + cowpea | 63.50 | 48.90 | 52.44 | 3662.80 |
| 08SADVE1 | maize + cowpea | 55.00 | 47.74 | 47.87 | 2494.40 |
| 09SADVEF2 | maize + cowpea | 60.75 | 43.39 | 48.35 | 3034.10 |
| Mudishi1 | maize + cowpea | 61.50 | 49.85 | 50.41 | 2682.40 |
| Mudishi3 | maize + cowpea | 56.75 | 52.32 | 52.86 | 2897.80 |
| Samaru | maize + cowpea | 55.25 | 55.63 | 53.56 | 3120.20 |
| VP0538 | maize + cowpea | 56.25 | 45.68 | 47.02 | 2847.30 |
| ZM523 | maize + cowpea | 56.00 | 50.93 | 50.45 | 3059.60 |
| Mean | maize + cowpea | 58.12 | 49.30 | 50.37 | 2974.82 |
| 07SADVE | maize + soybean | 60 | 47.54 | 48.54 | 2729.20 |
| 08SADVE1 | maize + soybean | 60.5 | 49.55 | 47.29 | 2548.40 |
| 09SADVEF2 | maize + soybean | 67.5 | 55.46 | 49.27 | 3503.40 |
| Mudishi1 | maize + soybean | 58 | 53.02 | 48.45 | 2604.80 |
| Mudishi3 | maize + soybean | 56.25 | 53.79 | 46.21 | 2435.30 |
| Samaru | maize + soybean | 55.75 | 49.44 | 54.22 | 2503.10 |
| VP0538 | maize + soybean | 57.25 | 51.9 | 42.42 | 2430.30 |
| ZM523 | maize + soybean | 54 | 44.18 | 49.95 | 2241.50 |
| Mean | maize + soybean | 58.65 | 50.61 | 48.29 | 2624.50 |
| Effect of varieties | 0.7018 | 0.4566 | 0.9333 | 0.7053 | |
| Effect of treatments | 0.6284 | 0.6554 | 0.8318 | 0.2600 | |
| Effect of varieties × treatments | 0.6519 | 0.3442 | 0.3797 | 0.7952 | |