I want to estimate the phosphorus extracted by Olsen methods
The following methods manual is available online as pdf which can be used.
Methods manual for forest soil and plant analysis by Kalra YP and Maynard DG
Information report NOR-X-319 Forestry Canada Northwest Region Northern Forestry Centre 1991pp.116
web.unbc.ca/~arocenaj/lab/kalra_mynard.pdf
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