Study on transfer of Ni in soil-plant system using 63Ni tracer method
College of Resources and Environment, Southwest Agricultnrul University, Chongqing 620716 (China)
A study was carried out on the transfer of native and added Ni towards plant both in different soils and at different time by using 63Ni tracer technique. The transfer of added Ni in soil was greater than native Ni and declined as time increased. The mobility was greater for soluble plus exchangeable fraction of soil Ni but very smaller for residual and Fe/Mn oxide bound fractions. These indicated that Ni was more mobile and more harmful in soils with a low pH and/or low content of Fe/Mn oxides.
Key Words: Ni, soil-plant system, tracer technique, transfer
Citation: Tu, C. 1994. Study on transfer of Ni in soil-plant system using 63Ni tracer method. Pedosphere. 4(3): 273-278.