Material

Bacterial biomass

(×108 cells/g-soil)

Water holding

capacity (ml/kg)

Bulk density (g/cm3)

Water content (%)

Base soil

Black soil

N.D.

980

0.84

1.2

Mountain soil

N.D.

550

1.39

29.6

Vermiculite

N.D.

3000

0.22

0.2

Peat moss

N.D.

300

0.14

3.6

Wood chip 1

2.7

1150

0.15

12.3

Wood chip 2

8.8

1120

0.10

9.2

Additive material

Oil cake

N.D.

-

-

-

Soybean meal

N.D.

-

-

-

Bone meal

N.D.

-

-

-

Chicken manure

7.8

-

-

-

Horse manure

71.0

-

-

-

Cow manure

132.4

-

-

-