Sawdust for fertilizer is not a good idea. It pulls nutrients from the material it is in while it decomposes! Pre-composting is excellent - that's how they make cypress mulch and other wood based mulching materials. The key is to keep the material moist and feed it with nitrogen (by adding ammonia or urine). Nitrogen is the thing that rotting wood depletes the most. What might be a better use for raw wood (and woody plants) is to make alcohol. The byproduct could definitely be used in the compost and the alcohol could be burned in your gasoline powered generator!
Offered by Roger.
I can see how this would be true for a while but in the long term it seems like what the young sawdust takith it will ultimately givith.
Offered by Mike.