What kind of sawdust can be used in soil nutrient soil?
If you really want to use sawn wood, you can first sun drying, and then use it after fermentation.
It is better not to use wood, because the humidity of the wood is difficult to control, and a lot of insects are produced.
The allocation of soil and soil incubation feeding is the best, soil and plant ash, ash discharge can grasp the humidity in the breeding soil and increase the soft, ash itself is alkaline, can reduce the number of mites breeding, has no effect on the soil element.