Respecification of structural equation models for the P cycle in tropical soils

摘要: Respecification of structural models allows evaluating new hypothesis and enhances understanding how changes in one pool can affect the other pools model. The aim this study was to evaluate theoretical concept P (unmeasurable variables—latent) using data from Hedley’s sequential extraction method for a better cycle tropical soils. being tested is degree which available controlled by different soil as measured techniques. respecified were adequate able represent generalization cycling best model including latent variables with multiple indicators consistent that are fractions determined method. In model, not only there direct relationship between organic, occluded primary mineral pool, but indirect relationships via organic theoretically statistically adequate. Thus, showed interrelationships geochemical biological processes on it corroborated dependence unfertilized