Relationships between agricultural ecology and chemical elements in soil

The relationships between agricultural ecology and the chemical elements in soil environment are studied. The results show that the agricultural ecology has closely relationships with the soil elements such as ,P,K,Na,Ca,Mg,S,Fe,Mn,Cu,Zn,B,Mo,V,Co,Ni,Cr,Pb,Cd,Hg,Se,F,Tl,Ba,Te,Ta,Sr,Ti,Si and rare-earth element.