Land Preparation and Sowing or Planting for SS 1

Class: SS 1
Term: Second Term
Week: 7
Age: 15 years
Duration: 60 minutes
Subject: Biology
Curriculum Theme: Society and Environmental Biology
Focal competence: Using agricultural practices and control of pests to manage their small-scale farms
Key competencies/values: Communication; Environmental Literacy; Entrepreneurship
Skills:

• Applying pest control measures
• Identifying agricultural pests

Previous Lesson: Energy Flow, Ecological Pyramids of Energy, Numbers and Biomass
Topic: Basic Agricultural Practices
Subject Matter: Land preparation, Sowing/ planting

Specific Objectives

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

Cognitive Domain

• Identify various animal husbandry practices.

Psychomotor Domain

• Prepare land for agricultural purposes.
• Sow seeds correctly.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• A suitable Biology textbook for SS 1
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)

Instructional Materials

The teacher will teach this lesson with the aid of:

• Community (e.g., school garden, nearby farm)
• Farm inputs (e.g., seeds, manure)
• Farm tools (e.g., hoe, cutlass, rake, spade)
• Video clips and simulations of different agricultural practices
• Charts showing different land preparation methods
• Pictures illustrating various animal husbandry practices

Rationale for the Lesson

This lesson is essential for students to understand the foundational steps in crop production, which are crucial for food security and agricultural sustainability. It provides practical skills in preparing land and planting, fostering an appreciation for farming as a viable economic activity. This knowledge supports further studies in agricultural science and promotes environmental literacy.

Prerequisite/Previous Knowledge

Students should have basic knowledge of plants, their parts, and the importance of agriculture from their Junior Secondary school studies.

Lesson Content/Board Summary

Basic Agricultural Practices

Land Preparation

Land preparation refers to all the operations carried out on the land before planting. It involves making the soil suitable for seed germination, seedling establishment, and healthy plant growth. Proper land preparation helps to create a good seedbed, control weeds, improve soil aeration, and enhance water infiltration.

Methods of Land Preparation

1. Clearing: This is the initial removal of existing vegetation such as bushes, trees, and weeds from the farm site. It can be done manually using cutlasses and hoes, mechanically with bulldozers, or chemically using herbicides.
2. Stumping: After clearing, tree stumps and roots are removed from the soil. This prevents them from interfering with cultivation and subsequent farm operations.
3. Ploughing: This involves breaking up the hard soil crust and turning over the soil to a depth of about 15-30 cm. It helps to aerate the soil, incorporate organic matter, and expose pests to predators. Ploughing can be done manually with hoes or mechanically with tractors and ploughs.
4. Harrowing: This is the process of breaking down large soil clods into finer particles after ploughing. It creates a smooth and uniform seedbed, which is ideal for seed germination and root penetration. Harrows can be disc harrows, spike-tooth harrows, or spring-tooth harrows.
5. Ridging/Moulding: This involves raising the soil into mounds or ridges. It is commonly done for crops like yam, cassava, and potatoes to provide better drainage, aeration, and ease of harvesting.

Importance of Land Preparation

1. It creates a good seedbed for proper seed germination and seedling establishment.
2. It helps to control weeds by burying them or exposing them to the sun, preventing competition with crops.
3. It improves soil aeration, allowing plant roots to breathe and absorb nutrients effectively.
4. It enhances water infiltration and retention in the soil.
5. It incorporates organic matter and fertilisers into the soil, improving soil fertility.
6. It helps to control soil-borne pests and diseases by exposing them to the sun or predators.
7. It facilitates farm operations such as planting, weeding, and harvesting.

Sowing and Planting

Sowing and planting are the processes of placing seeds or vegetative parts of plants into the soil for germination and growth.

Meaning of Sowing

Sowing refers to the direct placement of seeds into the soil. This method is typically used for crops that are not easily transplanted or those that grow quickly.

Meaning of Planting

Planting refers to the placement of seedlings (young plants) or vegetative parts (e.g., stem cuttings, tubers, suckers) into the soil. This method is often used for crops that require a nursery stage or those propagated vegetatively.

Methods of Sowing and Planting

1. Broadcasting: Seeds are scattered randomly over the prepared land. This method is quick but often results in uneven spacing and overcrowding. It is common for pasture grasses and some cereals.
2. Drilling: Seeds are dropped continuously in rows at a specific depth and spacing using a drill machine or manually. This allows for uniform spacing and easier weeding.
3. Dibbling: Seeds are placed individually into holes made at specific intervals and depths. This method ensures precise spacing and optimal plant population. It is common for larger seeds like maize, beans, or groundnuts.
4. Transplanting: Seedlings grown in a nursery are carefully dug up and replanted in the main field. This method is used for crops like tomatoes, peppers, cabbage, and rice to ensure better survival rates and uniform growth.
5. Vegetative Propagation: This involves planting parts of a plant other than seeds, such as stem cuttings (cassava, sugarcane), tubers (yam, potato), corms (cocoyam), or suckers (banana).

Factors Affecting Sowing and Planting

1. Seed Viability: Only viable (live and capable of germination) seeds should be used.
2. Time of Sowing/Planting: This depends on the crop type, rainfall pattern, and soil moisture availability. Planting too early or too late can affect yield.
3. Depth of Sowing/Planting: Seeds should be sown at an appropriate depth. Too shallow, they may dry out; too deep, they may not emerge.
4. Spacing: Correct spacing between plants and rows is crucial to avoid competition for sunlight, water, and nutrients.
5. Soil Type and Fertility: The soil must be suitable for the specific crop and have adequate nutrients.
6. Climatic Conditions: Temperature, rainfall, and sunlight are critical for germination and early growth.

Animal Husbandry Practices

Animal husbandry refers to the branch of agriculture concerned with raising and caring for farm animals. Identifying various practices is important for understanding livestock production.

Identification of Animal Husbandry Practices

1. Feeding: Providing appropriate and balanced diets to animals.
2. Housing: Constructing suitable shelters to protect animals from harsh weather and predators.
3. Breeding: Managing animal reproduction to improve genetic traits and increase population.
4. Health Management: Preventing and treating diseases through vaccination, deworming, and veterinary care.
5. Marketing: Selling animal products (meat, milk, eggs, wool) to consumers.
6. Record Keeping: Maintaining records of feed intake, growth rates, breeding cycles, and health treatments.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, 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 about their understanding of farming and what they think are the first steps farmers take before planting crops.

Pupils’ Activity: Pupils respond by sharing their ideas about farming and initial farm activities.

Learning Point: Activating prior knowledge

Step 2: Explanation of Land Preparation

Time: 10 minutes

Teaching Skill: Explanation/Illustration

Teacher’s Activity: The teacher explains the meaning of land preparation and discusses various methods such as clearing, stumping, ploughing, harrowing, and ridging, using charts or video clips as illustrations.

Pupils’ Activity: Pupils listen attentively, observe the illustrations, and ask questions for clarification.

Learning Point: Meaning and methods of land preparation

Step 3: Practical Demonstration of Land Preparation

Time: 15 minutes

Teaching Skill: Demonstration/Guided Practice

Teacher’s Activity: The teacher leads students to the school garden or nearby farm. The teacher demonstrates how to clear a small plot, use a hoe for ploughing, and rake for harrowing, emphasising safety precautions.

Pupils’ Activity: Pupils observe the demonstration carefully, identify the tools, and ask questions about the techniques.

Learning Point: Practical land preparation techniques

Step 4: Guided Practice in Land Preparation

Time: 10 minutes

Teaching Skill: Guided Practice/Supervision

Teacher’s Activity: The teacher guides students to engage in land preparation on a designated plot in the school garden, supervising their use of tools and correcting their techniques.

Pupils’ Activity: Pupils actively participate in clearing, ploughing, and harrowing small sections of the garden under the teacher’s guidance.

Learning Point: Applying land preparation skills

Step 5: Explanation of Sowing and Planting

Time: 5 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher explains the difference between sowing and planting, and discusses various methods like broadcasting, drilling, dibbling, transplanting, and vegetative propagation, providing examples of crops for each method.

Pupils’ Activity: Pupils listen, contribute examples of crops, and ask questions.

Learning Point: Sowing and planting methods

Step 6: Practical Demonstration of Sowing

Time: 5 minutes

Teaching Skill: Demonstration/Application

Teacher’s Activity: The teacher demonstrates how to sow seeds using the dibbling method on the prepared plot, showing the correct depth and spacing. The teacher also briefly introduces various animal husbandry practices using pictures.

Pupils’ Activity: Pupils observe the seed sowing demonstration and identify the animal husbandry practices shown.

Learning Point: Correct seed sowing; Animal husbandry practices

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 land preparation?
2. Mention two methods of land preparation.
3. Demonstrate how to sow a seed correctly.
4. Name two animal husbandry practices.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Understanding agricultural practices

Step 8: Note-Taking

Time: 10 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on land preparation, sowing, planting, and animal husbandry practices into their notebooks.

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

Learning Point: Recording lesson content

Step 9: Conclusion

Time: 5 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher summarises the key points of the lesson, reiterating the importance of proper land preparation and sowing/planting for successful crop yield, and the role of animal husbandry in agriculture. The teacher encourages students to practice these skills at home.

Pupils’ Activity: Pupils listen and ask any final questions.

Learning Point: Reinforcing lesson concepts

Continuous Assessment/Further Study

Type: Homework/Practical Exercise

Instruction: Answer the following questions and carry out the practical task:

1. Explain why land preparation is important before planting any crop.
2. Differentiate between ‘sowing’ and ‘planting’, giving two examples of crops for each.
3. Visit a local farm or your home garden. Identify and list three different farm tools used for land preparation and state their functions.
4. With the help of an adult, prepare a small seedbed at home and sow some viable seeds (e.g., beans, maize) using the dibbling method. Observe their germination over the next week.

Lesson Keywords

• Land preparation – Operations carried out on land to make it suitable for planting.
• Clearing – Removal of existing vegetation from a farm site.
• Ploughing – Breaking up and turning over the soil.
• Harrowing – Breaking down soil clods into finer particles.
• Ridging – Raising soil into mounds or ridges.
• Sowing – Direct placement of seeds into the soil.
• Planting – Placement of seedlings or vegetative parts into the soil.
• Broadcasting – Scattering seeds randomly over land.
• Dibbling – Placing seeds individually into holes.
• Transplanting – Moving seedlings from nursery to main field.
• Animal husbandry – Raising and caring for farm animals.

Differentiation

For students who grasp concepts quickly, encourage them to research different types of ploughs and harrows and their specific uses. Provide additional reading on advanced land preparation techniques like minimum tillage. For students needing more support, pair them with peers during practical activities and provide simplified diagrams of the land preparation process and sowing methods. Offer one-on-one guidance during the practical session.

Suggested Lesson Videos

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