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Questions and Answers
What is the primary function of aerators like bamboo poles in a compost pile?
What is the primary function of aerators like bamboo poles in a compost pile?
- To prevent moisture loss from the pile
- To allow air to pass down and aid decomposers (correct)
- To enhance the color of the compost
- To increase the weight of the compost pile
What role do aerobic bacteria play in the composting process?
What role do aerobic bacteria play in the composting process?
- They convert nitrites into complex carbohydrates
- They solely create heat without any byproducts
- They digest rigid plant fibers without the need for moisture
- They produce carbon dioxide and ammonium from organic matter (correct)
Which of the following describes compost when it is ready for use as an additive?
Which of the following describes compost when it is ready for use as an additive?
- Dark brown or black with an earthy smell (correct)
- Gray and powdery in texture
- Bright yellow and slightly wet
- Light green with a pungent smell
What is a common method to improve the fertility of the soil when using compost?
What is a common method to improve the fertility of the soil when using compost?
What process converts ammonium into plant nourishing nitrites and nitrates?
What process converts ammonium into plant nourishing nitrites and nitrates?
Flashcards
Modern Compost Method
Modern Compost Method
A method of composting involving shredding plant material, adding water, and ensuring proper aeration by regularly turning the mixture. This process helps in breaking down the material and promotes the growth of beneficial organisms like aerobic bacteria, worms, and fungi.
Decomposers in Compost
Decomposers in Compost
Microorganisms like bacteria, fungi, and worms that break down organic matter in compost, releasing nutrients back into the environment.
Nitrification in Compost
Nitrification in Compost
The process where aerobic bacteria convert ammonium (a byproduct of decomposition) into nitrites and nitrates, which are essential nutrients for plant growth.
Compost
Compost
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Loam
Loam
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Study Notes
Composting Methods
- Composting involves decomposition of plant matter, aided by decomposers
- Modern composting methods are multi-step and monitored
- Shredding plant matter, adding water, and proper aeration (e.g., turning the mixture with aerators like bamboo poles) are crucial steps
- Worms, fungi, and other organisms further break down the material
- Aerobic bacteria convert the inputs into heat, carbon dioxide, and ammonium through chemical processes
- Nitrification (by bacteria) converts the ammonium into plant-nourishing nitrites and nitrates
- Compost is a valuable soil additive, improving tilth and providing humus and nutrients for plant growth
Compost Properties & Uses
- Compost significantly improves the growing medium, making it porous and absorbent, retaining moisture and minerals
- Compost supports plant growth by providing nutrients
- Compost is mixed with soil, sand, grit, bark chips, vermiculite, perlite, or clay granules to create loam
- Ready-to-use compost appears dark brown or black with an earthy smell
- Compost can be directly tilled into soil or other growing mediums to enhance organic matter and overall soil fertility
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