NCERT Class 9 Skill Education Kaushal Vikas: Chapter 4 — Additional
This chapter introduces students to two additional vocations: Mushroom Cultivation and Aquaponics. Mushroom cultivation involves growing mushrooms from spores using a mycelium network, requiring specific conditions like proper temperature, humidity, ventilation, and hygiene. Key terms like sterilization, mycelium, spawn, inoculation, and incubation are explained. The chapter details the materials, quality and safety parameters, and essential steps in mushroom cultivation, from site selection to harvesting and storage. Aquaponics is presented as a sustainable system integrating aquaculture (fish farming) and hydroponics (plant cultivation without soil), allowing simultaneous growth of vegetables and fish. It emphasizes the importance of proper water quality, oxygen, temperature, and light for plant growth in this soil-less system.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 9 |
| Subject | Skill Education |
| Book | Kaushal Vikas |
| Chapter | Chapter 4 — Additional |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 388 |
Learning outcomes
- Understand the basic principles of mushroom cultivation.
- Identify key materials and steps involved in growing mushrooms.
- Recognize the importance of hygiene and safety in cultivation.
- Define aquaponics and its integrated system of fish and plant farming.
- Appreciate sustainable agricultural practices.
Vocabulary
| Word | Meaning |
|---|---|
| Spores | Reproductive units of fungi, similar to seeds. |
| Mycelium | A root-like network of fungal threads that absorbs nutrients. |
| Sterilisation | Cleaning and removing germs or other organisms from the growth medium. |
| Spawn | A substrate containing growing mycelium, used to initiate mushroom growth. |
| Inoculation | Adding spawn into a larger sterilized substrate. |
| Incubation | Providing conditions for the inoculated substrate to grow mycelium. |
| Substrate | The base medium (like straw or sawdust) for mushroom growth. |
| Aquaculture | The farming of fish and other aquatic organisms. |
| Hydroponics | A method of growing plants without soil, using mineral nutrient solutions in water. |
| Aquaponics | A sustainable system integrating aquaculture and hydroponics. |
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Practice questions
- What are the essential conditions for mushroom cultivation? Answer: Proper temperature, humidity, ventilation, and hygiene.
- What is spawn used for in mushroom cultivation? Answer: Spawn acts as a growth initiator for mushroom growth.
- Name two materials used as a substrate for mushroom growth. Answer: Straw, sawdust, or compost.
- What is aquaponics? Answer: Aquaponics is a sustainable system that integrates fish farming (aquaculture) and plant cultivation (hydroponics).
- Why is hygiene important in mushroom cultivation? Answer: Hygiene is important to prevent contamination and ensure healthy growth by removing germs and pests.
Frequently asked questions
What is the difference between spores and seeds in plant growth?
Mushrooms grow from spores, which are reproductive units, while many plants grow from seeds.
What is the role of mycelium in mushroom cultivation?
Mycelium acts like 'roots', absorbing nutrients from the substrate for mushroom growth.
What is the ideal temperature range for mushroom cultivation?
The ideal temperature range is typically 25–30°C.
How is moisture maintained during mushroom cultivation?
Moisture is maintained using a sprayer or mist bottle to keep the substrate damp but not soggy.
What does aquaponics integrate?
Aquaponics integrates aquaculture (fish farming) and hydroponics (soil-less plant cultivation).
What are the benefits of aquaponics?
Aquaponics is a sustainable and efficient method for growing vegetables and raising fish simultaneously.
What safety precautions should be taken during mushroom cultivation?
Personal hygiene (gloves, mask), safe handling of tools and heaters, and using mild disinfectants are important safety measures.
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NCERT Class 9 Skill Education — Kaushal Vikas — Chapter 4 — Additional. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.