Microorganisms
Chapter Name : Microorganisms: Friend And Foe |
Sub Topic Code : 103_08_02_01_04 |
Topic Name : Microorganisms |
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Sub Topic Name : Increasing Soil Fertility |
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Introduction
Soil on earth differs from place to place. Microorganisms increase soil fertility by excreting nitrogen.
Pre-Requisites:
How microorganisms help in increasing fertility of soil?
Activity:
Soil in your garden or park.
Real Life Question:
What are the different types of soil microorganisms?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Bacteria | Help in decomposition of organic matter in soil, which increase fertility. |
| Fungi | Present in pores of soil to which fresh organic matter hasn't been added yet. |
| Actinomycetes | Reduces nitrates in the soil |
| Algae | They grow most freely in fertile and damp soil. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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Real life uses :
More fertile the soil, the healthier plant will be.
Places to visit :
Gardens, park, fields
Practical examples around us
| Examples | Explainations |
|---|---|
| Organic waste | The organic waste which includes animal faces helps in improving soil fertility |
What you learn in Theory:
Which microorganisms help in improving soil fertility
What you learn in Practice:
How soil fertility is increased by microorganisms.