Table 2.
The probabilities of obtaining low and high yields and the minimum and maximum yield potential of tomato and maize in the maize-tomato rotation in three systems from 1994 to 2017.
| Crop | System | Probability of low yield (<10 percentile) |
Probability of high yield (>90 percentile) |
Minimum yield potential (Mg ha−1) | Maximum yield potential (Mg ha−1) |
|---|---|---|---|---|---|
| Tomato | ORG | 3.8% * | 2.1% | 67.201 | 75.179 |
| CONV | 12.4% | 16.6% | 49.082 | 91.820 | |
| CONV + WCC | 19.2% | 22.3% * | 40.581 | 99.682 | |
| Maize | CONV | — | — | 10.045 | 13.465 |
| CONV + WCC | — | — | 6.483 | 8.616 | |
| ORG | — | — | 5.693 | 9.209 |
CONV: conventional maize-tomato system; CONV + WCC: maize-tomato system with winter cover crops; ORG: organic maize-tomato system. Stars represent significant differences from the random distribution based on left-tail tests (probability of low yield) or right-tail tests (probability of high yield) over 5000 iterations at the 0.05 significance level.