. 2023 Feb 23;9(3):e13988. doi: 10.1016/j.heliyon.2023.e13988

Table 6.

Correlation analysis between soil proprieties and wheat yield as affected by lime treatments.

Parameter	GY	pH	Exch. Ac	Exch. Al	AP	SOC	TN	Ca	Mg	K
pH	0.60^∗
Exc. Ac	−0.75^∗∗	−0.92^∗∗
Exc. Al	−0.73^∗∗	−0.90^∗∗	0.97^∗∗
AP	0.95^∗∗	0.59^∗	−0.79^∗∗	−0.78^∗∗
SOC	0.38	0.90^∗∗	−0.75^∗∗	−0.72^∗∗	0.30
TN	0.25	0.87^∗∗	−0.76^∗∗	−0.77^∗∗	0.27	0.88^∗∗
Ca	0.90^∗∗	0.81^∗∗	−0.85^∗∗	−0.84^∗∗	0.84^∗∗	0.67^∗∗	0.52^∗
Mg	0.94^∗∗	0.60^∗∗	−0.73^∗∗	−0.74^∗∗	0.93^∗∗	0.38	0.25	0.91^∗∗
K	0.27	0.69^∗∗	−0.70^∗∗	−0.72^∗∗	0.37	0.55^∗	0.79^∗∗	0.34	0.22
CEC	0.89^∗∗	0.77^∗∗	−0.79^∗∗	−0.76^∗∗	0.80^∗∗	0.65^∗∗	0.45^∗	0.96^∗∗	0.87^∗∗	0.25

GY = Grain yield; pH = soil reaction; Exch. Ac = exchangeable acidity; Exch. Al = exchangeable aluminum; SOC = soil organic carbon; TN = total nitrogen; AP = available phosphorus; Ca²⁺, Mg²⁺, K⁺ and Na⁺ = exchangeable calcium; magnesium; potassium and sodium respectively; CEC = cation exchange capacity.

^∗

Correlation significant at p < 0.05.

^∗∗

Significant at p < 0.01.