Percentage of cells where recent (within 48 hours) pocket gopher sign was recorded for each cover-crop treatment, 1999. (See text for statistical analysis.)
| Cell (%) | |||
|---|---|---|---|
| Treatment | January | February | March |
| Native grass | 0.10 | 0.00 | 0.30 |
| Green manure | 0.10 | 0.10 | 0.00 |
| Clovers | 0.90 | 1.91 | 6.70 |
| Cereals | 0.00 | 0.00 | 0.00 |
| Disked | 0.00 | 0.00 | 0.00 |