Mechanisms for the Movement of Mn, Fe, B, Cu, Zn, Al and Sr from One Soil to the Surface of Soybean Roots (Glycine max)

The role of root interception, mass‐flow and diffusion in supplying ions to soybeans growing in a leached subsoil was investigated. Root interception was the main mechanism for the supply of Cu, Al and Sr to the soybean roots. Mass‐flow was the most important for B and diffusion was the most important for Mn, Fe and Zn. The most significant mechanisms will likely vary with the crop grown, climate and soil.