The main result of study is as follows: (1) Citrus orchard soil greyish brownpurple mud constant element background value in Jiangjin.
主要研究结果如下：(1)江津市柑橘果园土壤灰棕紫泥常量元素背景值。
2
The typical and representative purple soils in Sichuan Basin are red purple soil (acidic), gray-brownpurple soil (neutral), and red-brownpurple soil (calcareous).