Agriculture Reference
In-Depth Information
Table 7.1
Properties of the soil (T = 0), poultry manure and compost used in the compost vegetable field trial
Treatment
pHCa
a
EC
b
Exchangeable cations [cmol (+) kg
−1
]
TOC
TN
C/N
Colwell P
dS m
−1
g 100 g
−1
g 100 g
−1
mg kg
−1
Na
K
Ca
Mg
Field trial soil (0-10 cm)
5.2
0.13
1.1
0.11
10
29
0.12
0.29
5.35
1.25
pHw
b
EC
b
TOC
TN
C/N
Colwell P
TP
N:P ratio
dS m
−1
g 100 g
−1
g 100 g
−1
mg kg
−1
g 100 g
−1
Compost no. 1 (crop 1)
5.6
3.14
21
1.1
19.1
1200
0.38
2.9
Poultry manure (crops
1-10)
8.1
9.20
32
3.1
10.3
7500
2.60
1.2
Compost no.2 (Crop 6)
6.9
5.3
30
1.6
18.8
2200
0.72
2.2
a
pH in 1:5 soil/0.01 M CaCl
2
b
Electrical conductivity and pHw in 1:5 soil: water extract
TOC
total organic carbon,
TP
total P
