Improvement In Crop Yields
Chapter Name : Improvement In Food Resources |
Sub Topic Code : 103_09_15_01_06 |
Topic Name : Improvement In Crop Yields |
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Sub Topic Name : Fertilizers |
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Introduction
Fertilizer -commercially produced plant nutrients. Fertilizers supply nitrogen, phosphorus and potassium.
Pre-Requisites:
What are fertilizers? What is it's importance?
Activity:
videos which show how fertilizers can be harmful to plants.
Real Life Question:
Are fertilizers harmful to plants?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Fertilizers | They are used to ensure good vegetative growth.They are a factor in the higher yields of high-cost farming. They should be applied carefully in terms of proper dose, time, and observing preand post-application precautions for their complete utilization. |
| Organic Farming | It is a farming system with minimal or no use of chemicals as fertilizers, herbicides, pesticides etc. and with a maximum input of organic manures, recycled farm-wastes. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
Using fertilizer in minimal quantities can be helpful producing good quality of plants.
Places to visit :
Farms, Crop fields
Practical examples around us
| Examples | Explainations |
|---|---|
| Excessive use of fertilizer | Excessive use leads to soil infertility hence crops can't be grown |
What you learn in Theory:
What are fertilizers.
What you learn in Practice:
How are fertilizers helpful.