1. Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China;
2. Chongqing Research Center of State Key Laboratory of Coal Resources and Safe Mining, Chongqing 400042, China
Surface soil in the growing area of Fengjie navel orange was collected for analysis, and geochemical characteristics of major elements and main trace elements as well as their effective state were investigated. The content of main nutrient indices N, P and Corg is relatively high, while K content is ordinary. In trace elements, Fe, Zn and B are of relatively even distribution, Mn and Mo are somewhat unevenly distributed, and Cu is very unevenly distributed. As for soil element effective state, effective P, Mn, Cu, Si, K and Fe are abundant.