Abstract:In order to evaluate soil chemical properties of citrus orchards in northern Guangxi, 102 typical citrus orchards in 7 major citrus production counties in northern Guangxi were selected, soil samples were collected in 2017, and soil pH, organic matter and 10 nutrient contents were quantitatively analyzed and studied. The results showed that the range of soil pH was 3.95–8.02, among them, strong acid (pH<4.5), acid (pH 4.5–5.5) and alkaline (pH>7.3) soil samples were accounted for 24.51%, 48.04% and 9.80% of the total samples, respectively, and most orchard soils were strongly acid and acid. 64.70% of soil samples was suitable or basically suitable for citrus growth in pH (4.5–7.0), among of them, only 14.71% of soil samples was suitable for citrus growth in pH (5.5–6.5). Soil organic matter was rich, the proportion of suitable and above the suitable levels reached 86.27% in total. Most of the citrus orchards were rich and deficient coexistence in soil nutrients, which indicated poor balance of soil nutrients. 33.33% and 30.39% of soil samples were below the optimal ranges for citrus growth in available P and K, respectively, while 21.57% and 23.53% of soil samples were above optimal ranges, respectively. Soil available N and Ca were mainly within the suitable levels for citrus growth, however 36.27% and 31.37% of soil samples were in the insufficient levels, respectively. Soil available Fe and Mn were rich, and 64.71% and 55.89% of soil samples exceeded suitable levels, respectively. 59.80%, 92.16%, 56.86% and 50.98% of soil samples were deficient for citrus growth in available Mg, Zn, Cu and B, respectively. Soil acidification and deficiencies in available Mg, Zn, Cu and B are the limiting factors for citrus growth in northern Guangxi, thus, attentions should be paid to adjust soil pH and applying more Mg, Zn, Cu and B fertilizers.