1. What is the Carbon-Nitrogen Ratio?

The Carbon-Nitrogen (C:N) ratio is a key parameter in composting that affects the speed and quality of decomposition. It represents the proportion of carbon to nitrogen in organic materials used for composting.

2. How Does the Calculator Work?

The calculator uses the C:N ratio formula:

Where:

• \( Carbon \) — Weight of carbon-rich materials (lbs)
• \( Nitrogen \) — Weight of nitrogen-rich materials (lbs)

Explanation: The ideal C:N ratio for composting is typically between 25:1 and 30:1. This balance provides enough energy (carbon) and protein (nitrogen) for microorganisms to thrive.

3. Importance of C:N Ratio in Composting

Details: A proper C:N ratio ensures efficient decomposition, minimizes odors, and produces high-quality compost. Too much carbon slows decomposition, while too much nitrogen can cause ammonia odors.

4. Using the Calculator

Tips: Enter the weight of carbon-rich materials (like dry leaves, straw, paper) and nitrogen-rich materials (like grass clippings, food scraps, manure) in pounds. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal C:N ratio for composting?
A: The optimal range is 25:1 to 30:1. This provides the right balance for microorganisms to break down materials efficiently.

Q2: What are examples of carbon-rich materials?
A: Dry leaves, straw, sawdust, paper, cardboard, and wood chips are high in carbon (brown materials).

Q3: What are examples of nitrogen-rich materials?
A: Grass clippings, food scraps, coffee grounds, fresh manure, and green plant material are high in nitrogen (green materials).

Q4: What happens if the ratio is too high or too low?
A: Too high (excess carbon) slows decomposition. Too low (excess nitrogen) can cause ammonia odors and nitrogen loss.

Q5: How can I adjust my C:N ratio?
A: Add more green materials to lower the ratio (more nitrogen) or more brown materials to raise it (more carbon).