The effect of some organic acids on phosphorus solubility in soils
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Date
1985
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Med. Fac. Landbouww. Rijksuniv. Gent
Abstract
The study on the solubility of phosphorus in three soil
types of California (ranging frm ac id to calcareous soils) by
three organic ligands (fumarate, oxalate and citrate) showed
that important quantities are solubilized by these acids.
Oxalic acid prove d to be more effective in solubilizing P than
citric and f'umar ic acids for Hugo and Calera soils. However,
for Linne soil citrate proved superior over the other two
ligands. For all the soils, an increase in the concentration
of organic ligand resulted in an increase in solubilized
Phosphorus. Such an increase was more pronounc ed for calcareous
soil (Linne) than was the case for the other non-calcareous
soils.
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