Measuring and modeling ammonium adsorption by calcareous soils.

  title={Measuring and modeling ammonium adsorption by calcareous soils.},
  author={Faranak Ranjbar and Mohsen Jalali},
  journal={Environmental monitoring and assessment},
  volume={185 4},
The aim of this study was assessment of ammonium (NH 4(+) ) adsorption isotherms in some agricultural calcareous soils and modeling of that by using the mechanistic exchange model. Ten surface soils (0-30 cm) were collected from areas covered with different land uses in Hamedan, western Iran. Isotherm experiments were carried out by concentrations of NH 4(+) prepared from NH4Cl salt (0, 10, 20, 30, 40, 50, 100, and 150 mg NH 4(+)  l(-1)) in presence of 0.01 M CaCl2 solution. The empirical… CONTINUE READING