Effects of Deep Tillage and Straw Returning on Soil Microorganism and Enzyme Activities

Table 2

DTCT and DTDNT values of soil microorganism in the loam and clay soil.

	Depth	Actinomycete		Bacteria		Fungi
		Loam	Clay	Loam	Clay	Loam	Clay
DTCT	0–10 cm	0.447	0.251	0.041	0.003	0.057	0.099
	10–20 cm	0.628	0.241	−0.024	0.062	0.197	0.201
	20–30 cm	0.797	0.301	0.707	0.671	0.613	1.987
	30–40 cm	0.030	0.064	0.428	0.423	0.203	0.401
DTDNT	0–10 cm	0.648	1.660	0.749	0.366	2.342	0.248
	10–20 cm	1.032	1.663	0.785	0.839	1.702	1.045
	20–30 cm	1.111	3.038	0.198	0.998	0.486	0.841
	30–40 cm	0.008	0.973	0.106	0.686	0.058	0.587

Bold numbers in the column represented the maximal value.