潮土两个亚类有效硼含量差异较大，盐化潮土含量较高，平均为0.45mg/

The content of available boron in two subgroups of Chao soil is quite different, and the content of salinized Chao soil is higher, with an average of 0.45mg/kg, and the variation range is 0.19～0.93mg/kg, the variation range is smaller; , The average is 0.35mg/kg, the variation range is 0.06 ~ 1.92mg/kg, the variation range is large, and the content is uneven. The content of available boron in each sub-category salinized Chao soil> Chao soil. <br>(2) The effective boron content of different land types. The average content of available boron in different types of land varies. The vegetable field has the highest content, with an average of 0.42mg/kg, with a variation of 0.11 to 0.85mg/kg; followed by the orchard, with an average content of 0.37mg/kg, with a variation of 0.08 to 1.24mg/kg; and the lowest grain field content, with an average of 0.34 mg/kg, the variation range is 0.06～2.17mg/kg

The difference between the two subcategory effective boron content of tidal soil is large, the salted moisture soil content is higher, the average change is 0.19 to 0.93 mg/kg, the variation is small, the tidal soil sub-class content is low, the average change is 0.35 mg/kg, the change is 0.06 to 1.92 mg/kg, the content is larger, the content is not balanced. The effective boron content of each sub-class is salinized tidal soil and tide soil.<br>(2) The effective boron content of different land types. The average content of effective boron in soil of different land types varied. The vegetable land content is the highest, with an average of 0.42mg/kg, with a variation of 0.11 to 0.85mg/kg, followed by orchards with an average content of 0.37mg/kg, with a variation of 0.08 to 1.24mg/kg, and a grain field with the lowest content, with an average of 0.34mg/kg, with a variation of 0.06 to 2.17mg/kg

The content of available boron in the two subspecies of fluvo aquic soil is quite different, the average content is 0.45mg/kg, the range is 0.19-0.93mg/kg, and the range is small; the content of available boron in fluvo aquic soil is low, with an average of 0.35mg/kg and a range of 0.06-1.92mg/kg, with a large range and unbalanced content. The content of available boron in each subgroup was higher than that in salinized fluvo aquic soil.<br>(2) Effective boron content of different land use types. The average content of available boron in different land use types was different. The content of vegetable field was the highest, with an average of 0.42 mg / kg, with a range of 0.11-0.85 mg / kg; the second was orchard, with an average content of 0.37 mg / kg, with a range of 0.08-1.24 mg / kg; the content of grain field was the lowest, with an average of 0.34 mg / kg, with a range of 0.06-2.17 mg / kg<br>