Effect of phosphate sorption on soil pH

• Published in: European journal of soil science Vol. 73; no. 1
• Main Authors: Barrow, N. J., Debnath, Abhijit, Sen, Arup
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.01.2022
• Subjects: adsorption; calcium carbonate; cation exchange capacity; charge; exchangeable cations; phosphate; phosphates; phosphorus; soil pH; sorption

The effect of reaction between soil and phosphate on pH has not previously been explored or explained. We incubated samples of a soil with calcium carbonate to give a range of pHCaCl2 from 4.2 to 7.2, and then measured the change in pH when these samples were reacted with phosphate solutions. These...