EXTRACTION OF ORGANIC PHOSPHORUS FROM SOILS WITH SODIUM BICARBONATE | Zendy

A. A. MacLean | Zendy

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EXTRACTION OF ORGANIC PHOSPHORUS FROM SOILS WITH SODIUM BICARBONATE

Author(s) -

A. A. MacLean

Publication year - 1965

Publication title -

canadian journal of soil science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 67

eISSN - 1918-1841

pISSN - 0008-4271

DOI - 10.4141/cjss65-023

Subject(s) - sodium bicarbonate , chemistry , extraction (chemistry) , bicarbonate , hydrochloric acid , phosphorus , sodium , organic acid , soil water , environmental chemistry , inorganic chemistry , chromatography , organic chemistry , environmental science , soil science

Sodium bicarbonate extractable organic phosphorus increased with increasing pH of extractant, temperature, time of extraction, and soil/solution ratio. The inclusion of an acid pretreatment resulted in higher organic phosphorus levels than bicarbonate extraction only.The proposed method involves extraction with 0.5 M sodium bicarbonate at pH 10.0 for 16 hours at 90 °C following acid pretreatment with 0.5 N hydrochloric acid for 1 hour. Under these conditions 98.8% of the total organic phosphorus, as estimated by the method of Mehta et al., was extracted.

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