Assessment of the availibility of phosphate in soils by measurement of phosphate-stress in seedlings of sycamore (Acer pseudoplatanus L.) and birch (Betula verrucosa Ehrh.) using P32 phosphorus /
Harrison, A. F.(Anthony F.)
Helliwell, D. R.
[Grange over Sands] : Merlewood Research Station,
1973
Phosphates.