Publication Date:
1977-11-01
Description:
The forest floors of 20 soils supporting adult forest growth in New Brunswick were sampled and subjected to a study of P solubility in various reagents and P retention in the presence of variable amounts of Al. The organic surface accumulations contained from 430 to 1,280 ppm total P. After drying at 60 C, 6–28% of the total P was soluble in distilled water. Similar proportions of P were extracted with 0.002 N H2SO4, and slightly larger proportions by anion exchange resin. Extraction with 1 N HClO4 removed from 13 to 36% of the total P. Major portions of added [Formula: see text]were recovered by resin extraction from the organic substrates. Addition of Al reduced the recovery of added [Formula: see text] by various degrees, depending on the amount of Al added and origin of the organic sample.
Print ISSN:
0008-4271
Electronic ISSN:
1918-1841
Topics:
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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