Forms and Dynamics of Soil Potassium in Acid Soil in the Wolaita Zone of Southern Ethiopia

Table 5

Linear coefficients of correlation between potassium forms and quantity-intensity parameters.

Properties	H2O-K	NH4OAC-K	HNO3-K	Exchangeable-K	Nonexchangeable-K	AR^K	ΔK	PBC^K
Sand	−0.05	−0.98	−0.02	−0.98	−0.23	−0.95	0.24	−0.27
Silt	0.23	−0.43	−0.22	−0.43	−0.10	−0.4	−0.12	−0.11
Clay	0.05	0.98	0.02	0.98	−0.23	0.95	−0.24	−0.27
pHH20	−0.17	−0.13	−0.15	0.13	0.40	0.13	0.34	−0.14
OC	0.50	0.95	0.02	0.95	−0.23	0.95	0.24	−0.27
Ex.K	0.11	0.96	0.004	0.96	−0.24	0.96	0.38	−0.27
Ex.Ca	0.56	−0.22	−0.03	−0.22	−0.04	−0.22	−0.08	−0.13
Ex.Mg	0.11	0.96	0.004	0.96	−0.24	0.96	0.38	−0.27
Ex.Na	0.01	−0.33	0.12	−0.33	−0.11	−0.33	0.01	0.17
CEC	0.10	0.98	0.01	0.98	−0.27	0.98	0.38	−0.27