The distribution feature is that in calico purple soil rice and corn are short of zinc,in acid arenaceous soil wheat is short of molybdenum,in gravel yellow soil cole and orange are short of boron,in gles tide soil wheat is short of manganese.

• 分布特征是钙质紫色土水稻、玉米缺锌 ,酸性砂质土小麦缺钼 ,砾质黄壤油菜、柑桔缺硼 ,潜育化潮土小麦缺锰。