| 地块编号 | 实验组 % | 对照组 % |
| 1 | 9.79 | 9.60 |
| 2 | 9.73 | 9.61 |
| 3 | 9.80 | 9.58 |
| 4 | 9.78 | 9.58 |
| 5 | 9.82 | 9.61 |
| 6 | 9.79 | 9.59 |
| 平均值 ± 标准差 | 9.79 ± 0.03 | 9.60 ± 0.01 |