Kinetics of Dissolution of Phosphate Rock, Partial Acidulated Phosphate Rock and Tri Super Phosphate in Calcareous Soil.

摘要

ABSTRACT A study was conducted to evaluate kinetics of phosphorus release from dissolution of phosphate rock (PR), partial acidulated phosphate rock (40%-PAPR) and tri super phosphate (TSP) in calcareous soil by using Batch equilibrium technique for five incubation times. The water soluble phosphorus was measured at end of each incubation times. Six kinetic equations were tested to know which one is the best in description of phosphorus release to soil. The results showed that were gradual incr.