Method for improving cultivation quality of blueberry seedling

The invention provides a method for improving the cultivation quality of a blueberry seedling. The method comprises the following steps of 1) preparing a cultivation medium, specifically, taking garden soil with the pH value not higher than 6.0, adding turfy soil, perlite, harmlessly treated vinegar residues and ageratina adenophora stem and leaf leavening, uniformly stirring to obtain the cultivation medium, and putting the culture medium into a seedling raising container; (2) conducting field planting, specifically, cultivating blueberry seedlings into the culture medium in the seedling raising container, laying a black mulching film by taking a blueberry field planting point as a center, forming holes in the mulching film, adopting drip irrigation, and keeping the proper wettability ofthe culture medium; and (3) conducting fertilization, specifically, applying a nitrogen-phosphorus-potassium compound fertilizer aqueous solution by adopting a drip irrigation fertilization manner, sothat the ratio of effecti