川西南土壤微量元素特征

川西南土壤微量元素丰缺特征是有效量含量硼极缺 ,锌缺乏 ,钼较缺 ,而锰、铜较丰富。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。变化特征有三性 ,即潜在性缺乏 ,诱发性缺乏和失调性缺乏。

The Characteristics of Soil Microelements in Southwest of Sichuan

This paper deals the characteristics of soil microelements in southwest of Sichuan. In efficient-quantity, the scarce degree's sequence of the elements is boron the first, zinc the second, molybdenum the third, and manganese and copper are rich.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.Three variational features are the lack of potential, the lack of inducement and the lack of maladjustment.