Soil Properties, Crop Yield, and Economic Return in Response to Lime Application on Acidic Nitisols of Southern Highlands of Ethiopia

Table 6

Correlation coefficients among plant parameters and soil nutrient concentrations as affected by different rate of liming on Nitisols in southern Ethiopia.

Parameters	Height	Tillers	Yield	Biomass	pH	Av. P	CEC	OC	TN
Tillers	0.76
Yield	0.41	0.46
Biomass	0.57	0.43	0.84
pH	0.38	0.12^ns	0.36	0.35
Av. P	0.56	0.77	0.49	0.51	−0.57
CEC	0.26^ns	0.27^ns	0.11^ns	0.06^ns	0.11^ns	0.03^ns
OC	0.64	0.82	0.54	0.49	0.15^ns	0.79	0.14^ns
TN	0.52	0.39	0.49	0.46	0.04^ns	0.22^ns	0.02^ns	0.36
EA	−0.51	−0.24^ns	−0.39	−0.32	−0.67	−0.01^ns	−0.16^ns	−0.06^ns	−0.09^ns

 ≤ 0.05,  ≤ 0.01, and  ≤ 0.001; ns: not significant.