Phosphorus and Heavy Metal Attachment and Release in Sandy Soil Aggregate Fractions
M. K. Zhanga,
Z. L. He*,a,b,
D. V. Calvertc,
P. J. Stoffellac,
X. E. Yanga and
Y. C. Lid
a College of Resource and Environmental Sciences, Zhejiang University, Huajiachi Campus, Hangzhou 310029, P.R. China
b University of Florida, Institute of Food and Agricultural Sciences, Indian River Research and Education Center, 2199 South Rock Road, Fort Pierce, FL 34945
c University of Florida, Institute of Food and Agricultural Sciences, Indian River Research and Education Center, 2199 South Rock Road, Fort Pierce, FL 34945
d University of Florida, Institute of Food and Agricultural Sciences, Tropical Research and Education Center, Homestead, FL 33031

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Fig. 1. Average distributions of P and heavy metals in different aggregate fractions of the sandy soils.
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Fig. 2. Phosphorus adsorption maximum ratios of each size fraction (Qmf) to the bulk soil (Qms) sampled from vegetable and citrus production areas in Florida.
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Fig. 3. Phosphorus adsorption maximum as functions of total Al (Alt), Ca (Cat), and Fe (Fet) in all the size fractions of soils sampled from vegetable and citrus production areas in Florida.
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Copyright © 2003 by the Soil Science Society of America.