Doses of P (kg/ha)

Doses of Ca (kg/ha)

Doses of Mg (cmol/kg)

RDG correlation coefficients

DSP

Ca/Mg

Al

Fe

0

0

0

0.15ns

0.93ns

0.95ns

−0.98ns

25

0.93ns

0.43ns

0.77ns

0.54ns

50

0.54ns

0.81ns

−0.97ns

0.84ns

75

0.30ns

0.48ns

−0.81ns

0.62ns

25

0

0.94ns

0.79ns

−0.96ns

0.87ns

25

0.95ns

0.24ns

−0.72ns

0.53ns

50

0.51ns

0.99**

−0.85ns

0.96ns

75

0.82ns

0.56ns

−0.93ns

0.82ns

50

0

0.61ns

0.74ns

−0.99ns

0.99ns

25

0.17ns

0.82ns

−0.50ns

0.99ns

50

0.32ns

0.87ns

−0.38ns

0.97ns

75

0.99*

−0.01ns

−0.90ns

0.57ns

75

0

0.92ns

0.25ns

−0.99*

0.79ns

25

−0.31ns

0.64ns

−0.89ns

0.85ns

50

0.88ns

0.29ns

−0.94ns

0.79ns

75

0.80ns

0.33ns

−0.89ns

0.85ns