Table 5 Correlation among variables.

	Zn	Mn	Fe	Co	Cu	Dsr µg/ml/min	Tsd µg/ml/min	Phy µg/ml/min	Pho mg/ml/min	Nematode (10³)	Fungi (10⁵)	Bacteria(10⁸)
	(mg/kg)					Dsr µg/ml/min	Tsd µg/ml/min	Phy µg/ml/min	Pho mg/ml/min	Nematode (10³)	Fungi (10⁵)	Bacteria(10⁸)
Mn	− 0.14ns
Fe	0.09 ns	0.06 ns
Co	0.21 ∗ ∗	− 0.10 ∗ ∗	0.40 ∗ ∗
Cu	0.05 ns	− 0.16 ∗ ∗	− 0.69 ns	− 0.37 ∗ ∗
Dsr	0.46 ∗ ∗	− 0.07 ∗	0.31 ∗ ∗	− 0.24 ∗	− 0.24 ∗ ∗
Tsd	0.40 ∗ ∗	0.10 ns	0.36 ∗ ∗	− 0.17 ns	− 0.41 ∗	0.87 ∗ ∗
Phy	0.18 ns	− 0.10 ∗ ∗	− 0.01 ns	0.24 ∗ ∗	− 0.36 ∗ ∗	− 0.04ns	− 0.05 ∗
Pho	− 0.37 ns	0.05 ∗	− 0.53 ∗	− 0.17 ns	0.39ns	− 0.27 ∗	− 0.28 ∗ ∗	− 0.28 ∗ ∗
Nematode	− 0.06 ∗	− 0.040 ns	− 0.28 ns	− 0.08 ns	− 0.10 ∗ ∗	− 0.15 ∗ ∗	0.04ns	0.40 ∗ ∗	− 0.07 ns
Fungi	0.11 ∗ ∗	0.18 ∗ ∗	− 0.09 ∗ ∗	− 0.08 ns	0.11 ∗ ∗	0.09ns	0.21 ∗ ∗	− 0.15 ns	0.28 ∗	0.11 ∗ ∗
Bacteria	0.03 ns	− 0.15 ns	− 0.01 ns	0.23 ∗ ∗	0.09ns	− 0.36 ∗	− 0.45 ∗ ∗	0.26 ∗ ∗	0.20 ns	− 0.04 ns	0.04ns
Biomass P	− 0.06 ns	− 0.04 ns	0.20 ∗ ∗	0.10 ∗ ∗	− 0.06 ∗	− 0.19 ∗ ∗	− 0.22 ∗ ∗	0.09 ns	0.19 ∗ ∗	− 0.06 ∗ ∗	0.01 ∗	0.63 ∗ ∗

Variables in pairs exhibitinga ( +)correlationand havinga P- value < 0.05 tend to increase together. In pairs witha (-)correlationanda P-value ˂ 0.05, one variable tends todecreaseas the other increases. For P-value > 0.05, no significant relationship is observedbetween the two variables. The presence of one star ( ∗) signifies that thecorrelation is significantat the 0.05 level; two stars (∗ ∗) indicate significanceat the 0.01 level.

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