Data of specifically sorbed
Ni (NaOAc extractable Ni), Fe/Mn oxide-bound Zn (N[H.
amount and consequently the crystallinity level can increase linearly with the square root of time or with time depending on the type of transport process occuring in the outer swollen layers.
The amount of phosphate sorbed
was calculated from the changes in solution P concentration after shaking.
Water is sorbed
to the same extent in the isotropic sample as in the nematic one.
and organic matter bound Zn contributed positively and directly to Zn uptake in both crops.
s]OP (Eqn 2a) is the OP sorbed
when OP is added, [P.
where S is the amount of P sorbed
(mg P/kg soil), c is the concentration of P in the extract solution (mg P/L), and a and b are coefficients of the Freundlich equation, with b assigned a value of 0.
where Q is the total amount P sorbed
, C is the equilibrium P concentration, k is a constant relating to binding strength, and b is the P sorption maximum.
is plotted against solution P concentration, and the slope of the curve at a particular solution P concentration is a measure of P buffer capacity.
Various mathematical models have been proposed for describing the relationship between the amount of P sorbed
per unit of soil and the coexisting concentration of P in solution.
The vials were sealed and shaken for 5 days to achieve equilibrium between sorbed
and aqueous Cu species.
Desorption of Cu sorbed
by the soil column was subsequently initiated by passing a Cu-free, pH 5, 0.