Composting Process and Stability
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Questions and Answers

What is the ideal Carbon to Nitrogen (C:N) ratio for an active compost pile?

  • 40:1
  • 50:1
  • 25:1 to 30:1 (correct)
  • 20:1

    • What is an indicator of Compost Maturity?

  • Carbon dioxide evolution
  • Seed germination tests (correct)
  • Oxygen consumption
  • Self-heating

    • What is the preferred temperature range for Vermicomposting?

  • 15-35 °C
  • 5-15 °C
  • 25-40 °C
  • 5-25 °C (correct)

    • What is a benefit of maintaining optimal moisture levels in composting?

    <p>All of the above (D)</p> Signup and view all the answers

    What is a characteristic of microorganisms in composting?

    <p>They have a high metabolic rate (D)</p> Signup and view all the answers

    What is a common issue associated with poor moisture management in composting?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the primary purpose of vermicomposting?

    <p>To create a nutrient-rich fertilizer for plants (D)</p> Signup and view all the answers

    What is the ideal moisture level for optimal microbial growth in vermicomposting?

    <p>Moderately moist, like a damp paper towel (B)</p> Signup and view all the answers

    What is the primary mechanism by which microorganisms break down organic matter in vermicomposting?

    <p>Anaerobic respiration, producing CO2 and H2O (A)</p> Signup and view all the answers

    What is the minimum germination rate required to indicate well-matured compost?

    <p>90% (A)</p> Signup and view all the answers

    Which of the following materials is NOT suitable for vermicomposting?

    <p>Cat or dog droppings (D)</p> Signup and view all the answers

    What is the primary benefit of adding vermicompost to soil?

    <p>Enriches soil with nutrients and microorganisms (A)</p> Signup and view all the answers

    What is the primary benefit of compost in terms of soil properties?

    <p>It increases soil's water retention capacity (D)</p> Signup and view all the answers

    What is the primary goal of the curing phase in the composting process?

    <p>To slow down microbial activity (D)</p> Signup and view all the answers

    What is the final product of the composting process after 6 to 12 months of curing?

    <p>Biologically stable humic substances (A)</p> Signup and view all the answers

    What is the primary indicator of the composting process?

    <p>Microbial activity (C)</p> Signup and view all the answers

    What is the primary benefit of compost in terms of soil productivity?

    <p>It increases soil productivity (B)</p> Signup and view all the answers

    What is the primary characteristic of humus, the organic fraction of soil?

    <p>It is biologically stable (C)</p> Signup and view all the answers

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