| 处理号 | 编码值 | 供试重金属用量(mg/kg) | ||
| 
 | pb | cd | pb | cd | 
| 1 | 1 | 1 | 426.8 | 0.5 | 
| 2 | 1 | −1 | 426.8 | 0.1 | 
| 3 | −1 | 1 | 73.2 | 0.5 | 
| 4 | −1 | −1 | 73.2 | 0.1 | 
| 5 |        | 0 | 500 | 0.3 | 
| 6 | −1.414 | 0 | 0 | 0.3 | 
| 7 | 0 | 1.414 | 250 | 0.6 | 
| 8 | 0 | −1.414 | 250 | 0 | 
| 9 | 0 | 0 | 250 | 0.3 | 
| 10 | 0 | 0 | 250 | 0.3 | 
| 11 | 0 | 0 | 250 | 0.3 | 
| 12 | 0 | 0 | 250 | 0.3 | 
| 13 | 0 | 0 | 250 | 0.3 |