我省柑桔的种植大部分布在丘陵、山地和海涂。其中分布在丘陵、山地的有三十四万七千亩,分布在海涂的有十一万五千亩,种植在山地和海涂的柑桔占总种植面积的85%以上。海涂土壤多属盐碱土,含有较多的HCO_3~-和CO_3~2离子,pH值较高,因此使铁形成不溶或难于水的化合物,不能或难于被植 Most of the province’s citrus cultivation in the hills, mountains and sea Tu. Among them, there are 341,700 mu of hilly and mountainous areas, 115,000 mu of land distributed in the sea, and more than 85% of the total acreage planted in mountainous and marine areas. Tidal flat soil mostly saline-alkali soil, containing more HCO 3 ~ - and CO 3 ~ 2 ions, high pH, ​​so iron insoluble or difficult to water compounds, can not be difficult or difficult to be planted