🎯 Lesson Objective

By the end of this lesson, you will:

• Understand what hydroponics is
• Identify parts of a home hydroponic kit
• Learn how it works in small urban spaces
• Explore benefits and basic setup
• Click on the link below and watch the video:

https://www.youtube.com/watch?v=3a424CiFWCQ

🧠 What is Hydroponics?

Hydroponics is a method of growing plants without soil, using nutrient-rich water. Instead of soil, plants grow in materials like clay balls while roots absorb nutrients directly from water.

🧩 Components (Based on the Image Kit)

From the Casa De Amor hydroponic kit shown, here are the key parts:

1. 🌿 Growing Channel (Pipe)

• Long rectangular pipe where plants grow
• Holes hold net cups

2. 🪴 Net Cups

• Small holders for plants
• Allow roots to grow downward into nutrient solution

3. 🌱 Growing Medium (Clay Balls / Pellets)

• Supports plant roots
• Replaces soil

4. 💧 Nutrient Solution Bottles

• Different nutrients (N1–N5) supply essential minerals
• Mixed in water for plant feeding

5. ⚡ Water Pump + Tube

• Circulates nutrient water
• Keeps oxygen flowing to roots

6. 🌡️ Air Stone / Aeration Tube

• Adds oxygen to water
• Prevents root rot

7. 🌾 Seeds

• Example: spinach (can also grow lettuce, herbs, strawberries)

⚙️ How It Works (Simple Flow)

1. Water is mixed with nutrients
2. Pump circulates water through pipes
3. Plant roots absorb nutrients directly
4. Excess water flows back and recirculates

👉 This system is often called NFT (Nutrient Film Technique)

🏙️ Why Hydroponics for Urban Homes?

✔ No soil → clean and terrace-friendly
✔ Uses 90% less water
✔ Faster plant growth
✔ Can grow on walls or small balconies
✔ Ideal for cities like Mumbai (limited space)

⚠️ Important Tips

• Keep system in indirect sunlight (avoid overheating)
• Maintain pH level (5.5–6.5)
• Clean system regularly
• Use proper nutrient ratios
• Ensure continuous water flow

🧪 Mini Activity

Try growing:

• Spinach 🌿
• Mint 🌱
• Lettuce 🥬

Observe growth compared to soil!