Abstract: The 3-year-old southern highbush blueberry cultivar Emerald was taken as the research object. Three factors of soil pH, application amount of organic fertilizer and application amount of perlite were set up through the orthogonal test to explore the effects of different soil conditions on blueberry fruit quality and yield. The results showed that different soil conditions had significant effects on fruit quality and yield of the blueberry. Among them, under the conditions of soil pH 4.2 and a mass ratio of garden soil∶organic fertilizer∶perlite=33.6∶4∶1, the average number of fruits per plant was 127.00, the average fruit weight was 2.31 g, the average fruit diameter was 1.69 cm, and the average yield per plant was 293.03 g. The number of fruits and the yield per plant were significantly higher than other treatments. The soluble sugar content of blueberry fruit was the highest under the conditions of soil pH 5.8 and a mass ratio of garden soil∶organic fertilizer∶perlite=31.7∶6∶1; the anthocyanin content of blueberry fruit was the highest under the conditions of soil pH 5.0 and a mass ratio of garden soil∶organic fertilizer∶perlite=63.3∶12∶1; all the indexes of blank control were at the lowest value.

Key words: blueberry, soil conditions, fruit quality, yield