Crop, year and treatment
|
Months
|
pH
|
NH3, g/kg
|
Percentage of dry matter
|
---|
| | | |
Total N
|
Oxalic acid
|
Formic acid
|
Malic acid
|
Lactic acid
|
Acetic acid
|
VFA
|
---|
Hemp 2008:
| | | | | | | | | | |
Fresh
|
0
|
8.0
|
0.6
|
1.2
|
0.6
|
ND
|
1.3
|
ND
|
0.3
|
ND
|
No additives
|
4
|
5.5
|
0.6
|
1.2
|
ND
|
ND
|
1.8
|
7.8
|
1.7
|
0.6
|
|
8
|
6.4
|
1.8
|
1.3
|
ND
|
ND
|
2.5
|
7.3
|
2.2
|
0.6
|
Formic acid
|
4
|
4.2
|
0.6
|
1.3
|
1.2
|
4.3
|
2.1
|
ND
|
0.9
|
0.4
|
|
8
|
4.3
|
0.7
|
1.3
|
0.8
|
3.3
|
1.9
|
1.4
|
1.0
|
0.5
|
Hemp 2009:
| | | | | | | | | | |
Fresh
|
0
|
7.0
|
ND
|
1.1
|
4.9
|
ND
|
0.7
|
ND
|
1.2
|
ND
|
No additives
|
4
|
7.5
|
1.1
|
1.1
|
3.0
|
ND
|
2.7
|
2.2
|
1.0
|
0.4
|
|
8
|
8.1
|
0.9
|
1.0
|
2.7
|
ND
|
1.2
|
0.5
|
0.7
|
0.4
|
Urea
|
4
|
8.6
|
14.3
|
1.5
|
5.7
|
ND
|
0.8
|
ND
|
2.1
|
0.4
|
|
8
|
8.7
|
8.4
|
1.6
|
5.1
|
ND
|
0.9
|
ND
|
2.1
|
0.4
|
Maize 2008:
| | | | | | | | | | |
Fresh
|
0
|
5.5
|
0.3
|
1.7
|
9.2
|
ND
|
2.0
|
ND
|
ND
|
1.0
|
No additives
|
4
|
4.3
|
0.7
|
1.7
|
9.6
|
0.9
|
0.7
|
8.2
|
3.0
|
1.2
|
|
8
|
4.2
|
0.8
|
1.6
|
9.0
|
0.9
|
0.8
|
7.5
|
2.9
|
1.2
|
Formic acid
|
4
|
3.7
|
0.1
|
1.7
|
9.9
|
3.6
|
2.1
|
ND
|
ND
|
1.6
|
|
8
|
3.7
|
ND
|
1.7
|
6.8
|
2.4
|
1.4
|
ND
|
ND
|
0.4
|
Faba bean 2008:
| | | | | | | | | | |
Fresh
|
0
|
5.6
|
ND
|
3.0
|
0.1
|
ND
|
2.3
|
ND
|
0.7
|
1.1
|
No additives
|
4
|
4.6
|
0.8
|
3.0
|
0.1
|
ND
|
2.5
|
8.2
|
2.3
|
0.5
|
|
8
|
4.6
|
1.4
|
3.0
|
0.1
|
ND
|
2.7
|
8.8
|
2.3
|
0.5
|
Formic acid
|
4
|
4.2
|
0.5
|
3.1
|
0.2
|
3.7
|
3.2
|
2.1
|
0.9
|
0.7
|
|
8
|
4.1
|
1.4
|
3.1
|
0.4
|
4.0
|
3.6
|
2.7
|
1.0
|
0.6
|
- Acids and NH3 were determined from the filtrates of the blended crops.
- aPrewilted for urea ensiling.
- bExpressed as % of dry matter.
- ND = not detected; VFA = volatile fatty acids (propionic, butyric, valeric and isovaleric).