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: 4
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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This lesson explores the crucial role of fertilizers in modern agriculture. As Ghana strives for food security through initiatives like the "Planting for Food and Jobs" programme, understanding how to feed our crops is essential. However, feeding our crops must be done wisely to protect our most valuable natural resources: our soil and water. This lesson connects the use of fertilizers directly to the principle of conservation, teaching that proper application enhances production and sustains our environment for future generations, while improper use can cause significant damage.
A. What is a Fertilizer?
A fertilizer is any natural or synthetic substance 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 this way: just as humans need a balanced diet (like banku with fish, or yam with kontomire stew) to grow strong and healthy, plants need a balanced diet of nutrients from the soil. Over time, as crops are harvested, these nutrients are removed from the soil. Fertilizers are used to replenish these lost nutrients, ensuring the soil remains fertile for the next planting season.
Key Nutrients (Macronutrients): Nitrogen (N): Promotes leafy growth (vegetative growth) and gives plants their dark green colour. Phosphorus (P): Essential for root development, flowering, and fruit formation. Potassium (K): Helps with overall plant vigour, disease resistance, and water regulation.