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Composting 1 (How does composting help? (Growing plants, Improving soil…
Composting 1
How does composting help?
Growing plants
Improving soil health
reduces trash
Main idea: How does composting work
Microorganisms
Most important chemical decomposers
(change the chemistry of organic waste)
Bacteria
Aerobic bacteria are the most important microorganisms
mesophilic
Psychrophilic
thermophilic
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.
Fungi
Their main contribution to a compost pile is to break down cellulose and lignin, after faster acting bacteria make inroads on them.
actinomycetes
Other larger decomposers include:
Centipides
Sow bugs
snails
Mites
millipides
spring tales
Spiders
Slugs
Beetles
Ants
Key factors affecting the composting process
Food factor
Air factor
Moisture factor
Temperature factor
Particle size factor
Volume factor