Table 5.

Pearson’s correlation coefficients (n = 30)

Variables		Equation	r	R 2	P
Dependent	Independent
Total organic carbon	Total nitrogen	y = − 0.5343 + 13.426x	0.933	0.871	0.00001
Available phosphorus	Total organic carbon	y = 15.87 + 0.811x	0.577	0.333	0.0008
Acid phosphatase	Total organic carbon	y = 1.457 + 0.201x	0.538	0.289	0.0021
Alkaline phosphatase	Total organic carbon	y = 0.588 + 0.0621x	0.552	0.305	0.0015
Total organic carbon	Clay	y = 2.007 + 0.186x	0.511	0.262	0.0039
Available phosphorus	Total nitrogen	y = 15.684 + 10.337x	0.512	0.262	0.0038
Alkaline phosphatase	Total nitrogen	y = 0.514 + 0.928x	0.574	0.329	0.0009
Acid phosphatase	Total nitrogen	y = 1.062 + 3.362	0.627	0.362	0.0002
Alkaline phosphatase	Clay	y = 0.502 + 0.139x	0.451	0.202	0.0124
Available phosphorus	Clay	y = 14.486 + 1.90x	0.493	0.243	0.0055
Acid phosphatase	Alkaline phosphatase	y = −0.0115 + 2.763x	0.834	0.693	0.00001