Lesson Notes By Weeks and Term v4 - SHS 2
PRINCIPLES OF NATURAL RES OURCE CONSERVATION IN AGRICULTURE
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PRINCIPLES OF NATURAL RES OURCE CONSERVATION IN AGRICULTURE
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Agriculture
Class: SHS 2
Term: 2nd Term
Week: 5
Grade code: 2.3.2.LI.3
Strand code: 3
Sub-strand code: 2
Content standard code: 2.3.2.CS.3
Indicator code: 2.3.2.LI.3
Theme: FOOD PRODUCTION AND NATURAL RESOURCE CONSERVATION
Subtheme: PRINCIPLES OF NATURAL RES OURCE CONSERVATION IN AGRICULTURE
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Welcome, future agriculturalists! Today, we are exploring a topic that is at the heart of modern farming: fertilizers. Our soil is a precious natural resource, like a bank account for our crops. Every time we harvest, we withdraw nutrients from this account. If we don't make deposits, the account will become empty, and our crops will fail. Fertilizers are the "deposits" we make to keep our soil fertile and productive. However, using them wisely is a crucial part of conserving our natural resources. Using the wrong type, or too much, can damage the soil, pollute our water bodies like the Volta River or local streams, and waste money.
A. What is a Fertilizer?
A fertilizer is any natural or synthetic material that is applied to soil or to plant tissues to supply one or more plant nutrients essential to the growth of plants.
Think of it as food for plants. Just like humans need carbohydrates, proteins, and vitamins to grow strong and healthy, plants need nutrients. The most important ones are called macronutrients. Primary Macronutrients: Nitrogen (N), Phosphorus (P), Potassium (K). These are needed in the largest amounts. Nitrogen (N): Promotes leafy green growth (vegetative growth). It's a key component of chlorophyll. Phosphorus (P): Essential for root development, flowering, and fruit/seed formation. Potassium (K): Helps with overall plant health, disease resistance, and water regulation. It is important for tuber formation in crops like yam and cassava. B. Types of Fertilizers
We can classify fertilizers into two main groups: Organic and Inorganic (Chemical/Synthetic). Organic Fertilizers