Abstract: Objective: In order to explore the characteristics of soil nutrients in citrus orchard at different el-evations, clarify the influence of altitude on soil nutrients and fruit quality, and provide a theoret-ical basis for precise management of soil nutrients in orchards. Method: Collected the soil and fruits of citrus orchards at different altitudes and divided them into five grades according to altitude: altitude I (< 150 m), altitude II (150 ~ 200 m), altitude III (200 ~ 250 m), altitude IV (250 ~ 300 m) and altitude V (> 300 m). Ana...
