近年来油菜移栽后发生烂根死苗的现象已成为我省油菜冬发高产的一大障碍。据我所调查:移栽后没有发生烂根死苗的,收获时无缺株现象,亩产193.3斤;而移栽后烂根株率为18.6%的,收获时缺株率达22.6%,亩产169.0斤;移栽后烂根株率为30.2%的.收获时缺株率达45.2%。亩产134.3斤。 In recent years, the phenomenon of rotten roots and dead seedlings after rape transplanting has become a major obstacle to the high yield of winter rape in our province. According to my survey: after transplanting did not occur rotten roots and seedlings, no shortage of plants at harvest, 193.3 kg per mu; and transplanted rotten plant rate of 18.6%, the rate of deletion at harvest of 22.6%, mu 169.0 kg, the rate of rotted roots was 30.2% after transplanting, and the rate of deletion at harvest was 45.2%. 134.3 kg per mu.