TABLE 3.

Soil characteristics important for choice of the DNA extraction method

Decisive soil characteristic	DNA extraction method(s) for:
	PCR		PCR + DNA yield
	Recommended	Not recommended	Recommended	Not recommended
pH <7.5	MV, SV, SK		SV	MV
Clay, >20%		M	S, SC	MV, SK, SV
Vegetation cover
Forest	MV, SK, SV	M, S, SC, SA	SK, SV
Scattered	MV, SK	M, S	SA, SC, SV
pH >7.5
Organic matter, >20%		SC, SA
Vegetation cover, scattered		SC, SA	S, SA, SC	M, MV, SK, SV