Composting 1 (How does composting help? (Growing plants, Improving soil…
How does composting help?
Improving soil health
Main idea: How does composting work
Most important chemical decomposers
(change the chemistry of organic waste)
Aerobic bacteria are the most important microorganisms
Changes in oxygen, moisture, temperature, and acidity can make bacteria die or become inactive. Aerobic bacteria need oxygen levels greater than five percent. They are the preferred organisms, because they provide the most rapid and effective composting.
Their main contribution to a compost pile is to break down cellulose and lignin, after faster acting bacteria make inroads on them.
Other larger decomposers include:
Key factors affecting the composting process
Particle size factor