What is the correct sequence of preparing vermi-compost? (A) Introduction of…
2022
What is the correct sequence of preparing vermi-compost?
(A) Introduction of culture of worms into the pit
(B) Lining up with straw or dried grass and leaves
(C) Water the pit once or twice a week
(D) Construction of pit of half square meter area and one meter deep
(E) Putting into pit the organic wastes as and when generated
Choose the correct answer from the options given below:
Answer: D. D, B, E, A, C — ConceptVermicomposting uses earthworms to convert biodegradable organic matter into nutrient-rich compost. A valid preparation sequence first establishes the…
- A.
D, E, B, A, C
- B.
A, C, D, E, B
- C.
E, A, B, C, D
- D.
D, B, E, A, C
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Show answer & explanation
Correct answer: D
Concept
Vermicomposting uses earthworms to convert biodegradable organic matter into nutrient-rich compost. A valid preparation sequence first establishes the container, bedding and feed material, then introduces the worms, and finally maintains moisture.
Application
Construct the pit (D) so the process has a container.
Line it with straw, dried grass and leaves (B) to form the bedding.
Add the organic wastes (E) to provide biodegradable feed material.
Introduce the worm culture (A) only after the habitat and feed are ready.
Water the pit once or twice a week (C) to maintain the required moisture.
Cross-check
Each dependency precedes the step that needs it: the worms receive an already prepared habitat and food, while watering is the continuing maintenance step. Therefore, the sequence is D, B, E, A, C.