|   处理  |               |               |               |               |    ||||||||
|   病情指数均值  |       5%  |       1%  |       病情指数均值  |       5%  |       1%  |       病情指数均值  |       5%  |       1%  |       病情指数均值  |       5%  |       1%  |    |
|   烟稻轮作  |       0.2300  |       a  |       A  |       0.4467  |       a  |       A  |       0.9417  |       b  |       B  |       1.1967  |       c  |       C  |    
|   烟玉米轮作  |       0.2067  |       ab  |       A  |       0.4267  |       a  |       A  |       1.2800  |       a  |       A  |       1.7050  |       b  |       B  |    
|   烟烟连作  |       0.1783  |       b  |       A  |       0.4400  |       a  |       A  |       1.2883  |       a  |       A  |       2.0000  |       a  |       A  |