TABLE 1.

Correlation analysis of the soil physical and chemical properties.

Property	AN	P	OM	pH	Ca	Cu
Protease	0.025	0.216	−0.137	0.830**	0.819**	−0.2
Phosphatase	0.522	0.681*	0.389	0.994**	0.803**	−0.674*
Dehydrogenase	0.757**	0.815**	0.798**	0.746**	0.661*	−0.935**
Urease	0.227	0.342	0.297	0.659*	0.925**	−0.548

**Significant correlation at the P < 0.01 level (both sides), *Significant correlation at P < 0.05 (both sides).