| CARBON
/ NITROGEN RATIO FOR VARIOUS COMPOSTABLE MATERIALS:
| 1
High Organic Carbon
1 |
1
High Organic Nitrogen
1 |
| Fruit
wastes |
35:1 |
Humus |
10:1 |
| Leaves |
40:1 |
Alfalfa
Hay |
12:1 |
| Sugar
Cane Residues |
50:1 |
Alfalfa |
13:1 |
| Cornstalks |
60:1 |
Kitchen
Scraps |
15:1 |
| Oat
Straw |
80:1 |
Green
Sweet Clover |
16:1 |
| Straw |
80:1 |
Rotted
Manure |
15-25:1 |
| Paper |
170:1 |
Grass
Clippings |
19:1 |
| Sawdust |
500:1 |
Mature
Sweet |
23:1 |
| Wood
|
700:1 |
Legume-Grass
Hay |
25:1 |
The
C/N ratio need not be exact.
EXAMPLE
: How to calculate combined C/N
ratios.
Material
to be composted Percent used C/N ratio |
