Short-Term Effects of Biogas Digestates and Pig Slurry Application on Soil Microbial Activity

Table 1

Chemical, physical, and microbiological characteristics of the soil used in the experiment [10].

Parameter	Value
Chemical analyses
pH	5.6
Org-C (%)	1.3
Tot-C (%)	1.3
Tot-N (%)	0.1
Tot-P (mg kg^−1 ds)	700
Tot-S (mg kg^−1 ds)	200
P AL (mg kg^−1 ds)	48
K AL (mg kg^−1 ds)	185
Cu (mg kg^−1 ds)	26
Zn (mg kg^−1 ds)	91
Cd (mg kg^−1 ds)	0.3
Ni (mg kg^−1 ds)	24
Pb (mg kg^−1 ds)	20
Cr (mg kg^−1 ds)	36
Physical analyses
DM (%)	85.3
Sand (%)	14–20
Silt (%)	36–44
Clay (%)	37–49
WHC (g g^−1 ds)	0.51
Microbial analyses
NMC (g N g^−1ds 10 d^−1)	21.2
PAO (ng NO2-N g^−1 ds min^−1)	4.8
PDA (ng N2O-N g^−1 ds min^−1)	7.8
B-resp (g CO2 g^−1 ds h^−1)	0.78
SIR (g CO2-C g^−1 ds h^−1)	13.5