Ways Of Maintaining Soil Fertility, Fertilizer for Primary 4

Class: Primary 4
Term: 2nd Term
Subject: Pre-Vocational Studies
Curriculum Theme: Agricultural Science
Previous Lesson: Causes Of Soil Fertility Reduction, Erosion
Topic: Ways Of Maintaining Soil Fertility: Fertilizer
Content/learning Area: Ways to make soil fertile to grow crops: addition of fertilizer
Time Allocation: 40 minutes

Performance Objectives

By the end of the lesson, pupils should be able to:

• Cognitive Domain: Explain ways to maintain soil fertility using fertilizer.
• Affective Domain: Appreciate the importance of maintaining soil fertility in crop production.
• Psychomotor Domain: Demonstrate the process of adding fertilizer to soil.
• Social Domain: Discuss how improving soil fertility benefits the community.

Reference Materials

The following resources were used in planning this lesson:

• 9–Years Basic Education Curriculum
• Abuja Educational Resource Center Scheme of Work
• NAPPS National Unified Scheme of Work
• Online Facts from: GeoPard – How to Make the Soil fertile? Method to Improve Fertility
• relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials:

• Samples of fertilizers (e.g., NPK, urea).
• Organic manure (e.g., cow dung, poultry droppings).
• Charts showing different types of fertilizers and their benefits.
• A bowl of soil for presentation.

rationale for the lesson

Maintaining soil fertility is crucial for accomplished farming and food production.Understanding how fertilizers improve soil ensures lasting crop yield and supports food security.

Prerequisite/Previous Knowledge

Pupils have previously learned about the causes of soil fertility reduction, such as erosion, and understand its effects on crop production.

Lesson Content

Ways Of Maintaining Soil Fertility: Fertilizer

Maintaining soil fertility is important for growing healthy crops. One way to maintain soil fertility is by adding fertilizer to the soil. Fertilizers provide nutrients that crops need to grow.

Types of fertilizers can be broadly categorized based on their origin and composition:

These include:

1. Inorganic Fertilizers: These are chemical fertilizers like NPK and urea. they supply nitrogen,phosphorus,and potassium to the soil. Examples include ammonium sulfate, superphosphate, and potassium chloride.
2. Organic Fertilizers: These include natural materials like cow dung and poultry droppings. They improve soil structure and fertility over time. Other examples are compost, bone meal, and green manure.
3. Application: Fertilizers are added to the soil in the right amounts to avoid damaging crops. Methods include broadcasting, side-dressing, and foliar application.

Using Fertiliser Responsibly

Fertiliser supplies plant nutrients. Organic sources include compost and well-prepared manure; inorganic fertilisers contain measured nutrients in concentrated form. The correct type and amount depend on the crop and soil.

Too much fertiliser can burn plants and pollute water. Apply according to instructions, keep it away from children and food, avoid bare-hand contact and wash after supervised use. Fertiliser adds nutrients but does not replace erosion control or organic matter.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Interactive Questioning, Demonstration, Visual Aids, Hands-on Activity, Direct Instruction, Practical Illustration.

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 mins
Teaching Skill: Set Induction
Teacher’s Activity: Explains soil fertility and asks pupils about its importance.
Pupils’ Activity: Respond to questions and share ideas.

Step 2: Explanation of Fertilizers

Time: 10 mins
teaching Skill: Demonstration
Teacher’s Activity: Shows samples of fertilizers and explains their benefits.
Pupils’ Activity: Observe and ask questions.

Step 3: Demonstration of Fertilizer Application

Time: 10 mins
Teaching Skill: Hands-on activity
Teacher’s Activity: Demonstrates adding fertilizer to a bowl of soil.
Pupils’ Activity: watch and participate in the activity.

Step 4: Note-Taking

Time: 5 mins
Teaching Skill: Direct instruction
Teacher’s Activity: Guides pupils to write short notes on soil fertility maintenance.
Pupils’ Activity: write notes neatly.

Step 5: Evaluation/Review

Time: 5 mins
Teaching Skill: Questioning
Teacher’s Activity: asks questions to check pupils’ understanding.
Pupils’ Activity: Answer questions actively.

Objective-aligned checks:

1. Explain ways to maintain soil fertility using fertilizer.
2. Demonstrate the process of adding fertilizer to soil.

Step 6: Conclusion

Time: 5 mins
Teaching Skill: Summary
Teacher’s Activity: Summarizes the lesson and emphasizes key points.
Pupils’ Activity: Listen and ask final questions.

Lesson Keywords

• Soil Fertility – The ability of soil to sustain plant growth.
• Fertilizer – A substance added to soil to enhance its fertility.
• Organic Fertilizer – Natural materials used to improve soil fertility.
• Inorganic fertilizer – chemical compounds used to enhance soil fertility.
• NPK – A type of inorganic fertilizer containing nitrogen,phosphorus,and potassium.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

1. Define soil fertility.
2. List two types of fertilizers.
3. State one benefit of organic fertilizers.
4. Explain how fertilizers improve soil fertility.
5. Demonstrate the process of adding fertilizer to soil.

Assignment/Homework

1. Research and list three examples of organic fertilizers available in your locality.
2. Explain the importance of maintaining soil fertility for crop production.
3. Describe the steps involved in applying fertilizer to a small garden plot.

Differentiation

• For slower learners: Provide simplified explanations and hands-on demonstrations with individual assistance.
• For advanced learners: Encourage them to research different types of fertilizers and their specific uses for various crops.
• For visual/auditory/kinesthetic learners: use visual aids, verbal explanations, and practical activities to cater to different learning styles.

Note for Teachers

Ensure that pupils understand the difference between organic and inorganic fertilizers. Use real-life examples of how farmers improve soil fertility in your community to make the lesson relatable. Encourage pupils to ask questions and participate actively. Happy teaching!