Lesson Notes By Weeks and Term - Senior Secondary 2

Factors affecting production of herbage in a rangeland

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TERM – 3RD TERM

WEEK FIVE

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: ANIMAL HUSBANDRY

Topic: FACTORS AFFECTING PRODUCTION OF HERBAGE IN A RANGELAND

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Discuss the factors that affects production of herbage in a rangeland.

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher highlight and discusses the factors that affects production of herbage in a rangeland:             Rainfall, Grazing pattern, Grasses and legumes, Weed control, Disease and pest control, Drought resistance, Controlled burning, Irrigation

Students listens attentively to the teacher                                                                          

STEP 2

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

FACTORS AFFECTING PRODUCTION OF HERBAGE IN A RANGE LAND

The following are factors Affecting Production of Herbage in Rangelands

  1. Rainfall:

Rainfall is a primary determinant of herbage production in rangelands. Adequate rainfall provides moisture essential for plant growth, germination of seeds, and development of vegetation.

  1. Grazing Pattern:

Grazing pattern, including stocking density, grazing intensity, and rotational grazing practices, significantly influences herbage production in rangelands. Proper grazing management can promote vegetative growth, maintain plant vigor, and prevent overgrazing, enhancing overall herbage production and quality.

  1. Grasses and Legumes:

The composition and diversity of grasses and legumes present in rangelands play a crucial role in herbage production. Grass species with high productivity, nutritional value, and drought tolerance contribute to increased herbage production and forage quality.

  1. Weed Control:

Weed infestation can compete with desirable grasses and legumes for resources such as water, nutrients, and sunlight, reducing herbage production and quality in rangelands.

  1. Disease and Pest Control:

Diseases and pests can significantly impact herbage production by damaging vegetation, reducing plant vigor, and compromising forage quality. Integrated pest management (IPM) strategies, such as monitoring, biological control, and selective pesticide application, are critical for preventing disease outbreaks and controlling pest populations in rangelands.

  1. Drought Resistance:

Plants with inherent drought resistance mechanisms, such as deep root systems, water-conserving leaf structures, and succulent tissues, are better adapted to survive and thrive in arid and semi-arid rangeland environments.

  1. Controlled Burning:

Controlled burning, or prescribed burning, can stimulate herbage production by removing accumulated thatch, promoting seed germination, and stimulating new growth of grasses and forbs.

  1. Irrigation:

In some rangeland systems, supplemental irrigation may be used to enhance herbage production during dry periods or in areas with limited rainfall. Irrigation can increase soil moisture levels, extend the growing season, and support the growth of high-yield forage crops, improving overall rangeland productivity and carrying capacity for livestock grazing.

EVALUATION: 1. Identify 5 factors that affects production of herbage in a rangeland.

  1. Discuss briefly the factors mentioned in 1 above.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively