Modeling of Permanent Wilting from Particle Size Fractions of Coastal Plain Sands Soils in Southeastern Nigeria

Table 3

Pearson correlation coefficients for soil properties of the study sites.

	PWP	Sand	Fine sand	Coarse sand	Silt	Clay	SCR
PWP (%)
Sand (g kg^−1)	−0.14
Fine sand (g kg^−1)	−0.07	−0.39^**
Coarse sand (g kg^−1)	0.003	0.71^**	−0.93^**
Silt (g kg^−1)	0.004	−0.75^**	0.25^*	−0.51^**
Clay (g kg^−1)	0.21^*	−0.72^**	0.33^**	−0.54^**	0.08
SCR	−0.17	−0.26^**	0.12	−0.20^*	0.81^**	−0.47^**
Clay ratio	−0.26^**	0.62^**	−0.22^*	0.42^**	0.03	−0.97^**	0.58^**

PWP: permanent wilting point, SCR: silt clay ratio, ^*Significant at 5%, ^**Significant at 1%.