Meaning of fertilizer and Types of fertilizer organic fertilizers for JSS 1

Class: JSS 1
Term: First Term
Week: 9
Age: 12 years
Duration: 45 minutes
Subject: Horticulture and Crop Production
Curriculum Theme: Horticulture and Crop Production
Focal competence: apply fertilizer
Key competencies/values: Critical Thinking; Respect
Skills:

• Identifying types of fertilizers
• Applying fertilizer using different methods

Previous Lesson: Site selection secured environment and Site selection access to market
Topic: Fertilizer Application
Subject Matter: Meaning of fertilizer, Types of fertilizer

Specific Objectives

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

Cognitive Domain

• define fertilizer;
• identify the types of fertilizer, specifically organic fertilizers;
• identify different organic fertilizers.

Affective Domain

• appreciate the importance of fertilizers in crop production;
• show willingness to learn about proper fertilizer application.

Psychomotor Domain

• apply fertilizer using different methods;
• demonstrate the identification of organic fertilizers.

Social Domain

• collaborate effectively in groups to identify and apply fertilizers.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Basic Agriculture for Junior Secondary Schools Book 1
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Organic fertilizer samples (e.g., compost, manure, poultry droppings)
• Inorganic fertilizer samples (e.g., NPK, Urea)
• Garden hoe
• Hand trowel
• Seedlings or potted plants
• Video clips showing types of fertilizers and their application
• Charts illustrating different fertilizer types

Rationale for the Lesson

This lesson is important as it introduces students to fertilizers, which are essential for healthy plant growth and increased crop yield. Understanding different types of fertilizers and their correct application methods is fundamental for effective horticultural practices. This knowledge will equip students with practical skills for successful crop production.

Prerequisite/Previous Knowledge

Students should have basic knowledge of plant parts, plant needs (water, sunlight, soil), and simple farming tools.

Lesson Content/Board Summary

Fertilizer Application

Meaning of Fertilizer

A fertilizer is any material, organic or inorganic, that is added to the soil to supply essential nutrients for plant growth. Fertilizers help plants grow healthier, stronger, and produce more yield.

Types of Fertilizer

Fertilizers are broadly classified into two main types:

1. Organic Fertilizers: These are natural fertilizers derived from plant and animal matter. They improve soil structure, water retention, and provide nutrients slowly over time.
2. Inorganic Fertilizers: Also known as chemical or synthetic fertilizers, these are manufactured and contain specific nutrients in concentrated forms. They provide quick nutrient release to plants.

Organic Fertilizers

Organic fertilizers are important for sustainable agriculture. Examples include:

1. Farmyard Manure: This is a mixture of animal dung, urine, and bedding materials like straw. It is rich in various plant nutrients.
2. Compost: This is decomposed organic matter made from plant residues (leaves, grass clippings, food scraps) and sometimes animal waste. It improves soil fertility and structure.
3. Green Manure: This involves growing specific plants (like legumes) and then ploughing them back into the soil while they are still green to enrich the soil with nutrients, especially nitrogen.
4. Poultry Droppings: These are faeces from poultry birds, which are rich in nitrogen, phosphorus, and potassium.
5. Bone Meal: Made from ground animal bones, it is a good source of phosphorus and calcium.
6. Blood Meal: Dried animal blood, a rich source of nitrogen.

Identification of Organic Fertilizers

Organic fertilizers can be identified by their:

1. Appearance: They often have a natural, earthy look (e.g., dark brown or black for compost and manure).
2. Smell: They usually have an earthy or slightly pungent smell, unlike the chemical smell of inorganic fertilizers.
3. Texture: They are typically bulky and may contain visible plant or animal residues.
4. Source: Knowing their origin (e.g., from animals, decomposed plants) helps in identification.

Methods of Fertilizer Application (General)

Fertilizers can be applied using various methods to ensure plants receive the nutrients effectively. Some common methods include:

1. Broadcasting: Spreading fertilizer evenly over the entire soil surface, either before planting or to established crops.
2. Side Dressing: Applying fertilizer in a band along the side of a row of plants, a few inches away from the stems.
3. Ring Method: Applying fertilizer in a ring around individual plants, a short distance from the stem. This is common for trees and widely spaced plants.
4. Foliar Application: Dissolving fertilizer in water and spraying it directly onto the leaves of plants. This allows for quick absorption of nutrients.
5. Band Placement: Placing fertilizer in bands on one or both sides of the plant row, usually below and to the side of the seeds or seedlings.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Group Work, Practical Activity.

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Engagement

Teacher’s Activity: The teacher greets the students and asks them what plants need to grow well. The teacher then introduces the topic of fertilizers as a way to provide additional nutrients to plants.

Pupils’ Activity: Students respond to questions about plant needs and listen attentively to the introduction.

Learning Point: Importance of plant nutrients

Step 2: Meaning of Fertilizer

Time: 7 minutes

Teaching Skill: Explanation/Definition

Teacher’s Activity: The teacher explains the meaning of fertilizer, using simple language and examples of why farmers use them. The teacher writes the definition on the board.

Pupils’ Activity: Students listen, ask questions for clarity, and repeat the definition of fertilizer.

Learning Point: Definition of fertilizer

Step 3: Types of Fertilizer

Time: 8 minutes

Teaching Skill: Classification/Identification

Teacher’s Activity: The teacher introduces the two main types of fertilizers: organic and inorganic. The teacher displays samples of both (if available) and briefly explains their differences, focusing more on organic types as per the lesson scope.

Pupils’ Activity: Students observe the samples, listen to the explanations, and identify the two main types of fertilizers.

Learning Point: Organic and inorganic fertilizers

Step 4: Organic Fertilizers and their Identification

Time: 8 minutes

Teaching Skill: Elaboration/Demonstration

Teacher’s Activity: The teacher discusses various examples of organic fertilizers (manure, compost, green manure, poultry droppings) and explains how to identify them by appearance, smell, and texture. The teacher shows actual samples of organic fertilizers.

Pupils’ Activity: Students observe the organic fertilizer samples, touch and smell them (if safe), and learn their identification characteristics.

Learning Point: Organic fertilizer identification

Step 5: Group Activity – Identifying Fertilizers

Time: 5 minutes

Teaching Skill: Group Work/Practical Application

Teacher’s Activity: The teacher divides students into groups and provides each group with different organic fertilizer samples. The teacher instructs them to identify each sample based on the characteristics discussed.

Pupils’ Activity: In groups, students examine the samples and identify the types of organic fertilizers, discussing their characteristics.

Learning Point: Practical fertilizer identification

Step 6: Group Activity – Applying Fertilizers

Time: 5 minutes

Teaching Skill: Demonstration/Guided Practice

Teacher’s Activity: The teacher demonstrates basic methods of fertilizer application (e.g., broadcasting, side dressing, ring method) using organic fertilizer and potted plants or seedlings. The teacher guides students to practice these methods in their groups.

Pupils’ Activity: Students observe the demonstration carefully and then practice applying fertilizer using the demonstrated methods in their groups, under supervision.

Learning Point: Basic fertilizer application

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is a fertilizer?
2. Mention two types of organic fertilizers.
3. How can you identify compost?
4. Name one method of applying fertilizer.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Fertilizer concepts assessed

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on the meaning and types of fertilizers into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson information

Step 9: Conclusion

Time: 3 minutes

Teaching Skill: Reinforcement

Teacher’s Activity: The teacher briefly reinforces the importance of using fertilizers correctly for good crop yield and encourages students to practice identifying organic materials at home that can be used as fertilizers. The teacher closes the lesson.

Pupils’ Activity: Students listen and reflect on the importance of the lesson.

Learning Point: Fertilizer importance reinforced

Continuous Assessment/Further Study

Type: Homework

Instruction: Answer the following questions in your notebook:

1. List three examples of organic fertilizers you can find in your community.
2. Describe how you would apply fertilizer using the ring method to a single plant.
3. Why is it important to use fertilizers in farming?

Lesson Keywords

• Fertilizer – Material added to soil to provide nutrients for plants.
• Organic Fertilizer – Natural fertilizers from plant and animal matter.
• Inorganic Fertilizer – Manufactured chemical fertilizers.
• Manure – Animal waste used as fertilizer.
• Compost – Decomposed organic material.
• Broadcasting – Spreading fertilizer evenly over soil.
• Side Dressing – Applying fertilizer along plant rows.
• Ring Method – Applying fertilizer in a circle around a plant.

Differentiation

Support for weaker learners: Provide simplified definitions and more direct guidance during practical identification and application activities. Pair them with stronger learners. Use visual aids extensively.

Extension for faster learners: Encourage them to research other types of organic fertilizers or different application methods not covered in detail. They can also lead group discussions or demonstrations.

Suggested Lesson Videos

For videos on fertilizer types and application, search on YouTube for:

• “Types of fertilizers for beginners”
• “How to apply organic fertilizers”
• “JSS 1 Horticulture fertilizer application”

Teacher Guide for Using This Lesson Plan

Before the lesson, ensure you have a variety of organic fertilizer samples (e.g., small amounts of compost, dried manure, poultry droppings) and, if possible, a sample of inorganic fertilizer for comparison. Prepare a small garden plot or a few potted plants for the application demonstration. During the lesson, emphasize the practical aspects of identifying and applying fertilizers. Guide students carefully during the group activities, ensuring safety when handling materials and tools. For Step 8, ensure students copy the Board Summary accurately. Pay attention to common misconceptions, such as thinking all fertilizers are chemicals. Encourage students to connect the lesson to real-world farming practices.