A Computer Simulation of Fe(III) and Fe(II) Complexation in Nutrient Solutions: II. Application to Growing Plants
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A computer model developed by the authors accurately predicted the chelation of ferrous and ferric ion as a function of pH and redox potential in nutrient solutions. Experiments were conducted to establish the apparent redox potential (4 < pe + pH < 7) imposed by roots of efficient and inefficient soybean plants (Glycine max L.). Using this information, equilibrium Fe2+concentrations were controlled by adjusting the concentrations of the chelating agents. Iron-59 uptake was correlated with log[Fe2+] for concentrations between 10-6.5and 10-9.2mol Fe2+/L in the experimental nutrient solutions.
author list (cited authors)
Schwab, A. P., & Lindsay, W. L.