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Procedure for Determining Sodium-Calcium Selectivity in Calcareous and Gypsiferous Soils

✍ Scribed by Amrhein, C.; Suarez, D. L.

Book ID
121521126
Publisher
The American Society of Agronomy
Year
1990
Tongue
English
Weight
274 KB
Volume
54
Category
Article
ISSN
0361-5995

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## Abstract The organic phosphorus content of 33 calcareous soils (0.1‐52.4% CaCO^3^,) was determined by the ignition method and by hydrogen peroxide oxidation. Mean values for organic phosphorus expressed as a percentage of the total phosphorus were 14.5% and 15.6% for the two methods respectively