| 处理 | | | | | |||||||||
| 平均病指 | 5% | 1% | 平均病指 | 5% | 1% | 平均病指 | 5% | 1% | 平均病指 | 5% | 1% | ||
| 烟稻轮作 | 去除脚叶 | 0.24 | a | A | 0.4533 | a | A | 0.9033 | a | A | 1.06 | b | B |
| 留脚叶 | 0.22 | a | A | 0.44 | a | A | 0.98 | a | A | 1.3333 | a | A | |
| 烟玉米轮作 | 去除脚叶 | 0.2167 | a | A | 0.4333 | a | A | 1.2233 | b | A | 1.66 | b | A |
| 留脚叶 | 0.1967 | a | A | 0.42 | a | A | 1.3367 | a | A | 1.75 | a | A | |
| 烟烟连作 | 去除脚叶 | 0.19 | a | A | 0.45 | a | A | 1.26 | a | A | 1.93 | b | B |
| 留脚叶 | 0.1667 | a | A | 0.43 | a | A | 1.3167 | a | A | 2.07 | a | A | |