PHOSPHORUS FIXATION BY SOIL SEPARATES AND FRACTIONS
- 1 January 1942
- journal article
- research article
- Published by Wolters Kluwer Health in Soil Science
- Vol. 53 (1) , 37-42
- https://doi.org/10.1097/00010694-194201000-00004
Abstract
Phosphate fixation was studied in separates and fractions of a Wabash soil ranging from fine sand to clay, which were obtained by sedimentation and bromoform flotation. The results showed that both the chemical composition of the soil minerals and the phosphate fixation are related to particle size. As the particle size decreased, the SiO2/R2O3 ratio decreased and phosphate fixation decreased on a surface area basis but increased on a wt. basis. These changes were gradual, until at a diam. of 0.006 mm. there was an abrupt change in the characteristics of the soil particles.Keywords
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