Lesson Notes By Weeks and Term - Senior Secondary School 1

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Term: 3rd Term

Week: 11

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:    Agriculture

Topic:-      Husbandry of selected crops II

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

  1. Discuss how to cultivate some roots and tubers

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 reviews the previous lesson on how to cultivate cereals and legumes

Students pay attention

STEP 2

EXPLANATION

She discusses how to cultivate yam

 

Students pay attention and participates

STEP 3

DEMONSTRATION

She discusses how to cultivate cassava

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

CULTIVATION OF ROOTS AND TUBERS

 

YAM (Dioscoreaspp)

CASSAVA (Manihotspp)

Description

Yam belongs to the family Dioscoreacea.  It is a root and tuber crop grown in West Africa and it is rich in carbohydrates.

Cassava is a root and tuber crop, rich in carbohydrate. It is easily cultivated and can grow in relatively poor soil.

Varieties / cultivar

Water yam (Dioscoreaalata) Yellow yam (Dioscoreacayenesis) White yam (Dioscorearotundata) Bitter yam (Dioscoreadomentorum Aerial yam (Dioscoreabulbifera)

Sweet cassava (Manihotutilissima) Bitter cassava (Manihotpalmata)

Land preparation

Clearing the land and making ridges either manually or mechanically.

Clearing the land and making ridges either manually or mechanically.

Climatic requirement

Temperature of 25o – 30oC, Rainfall of 100cm – 180cm per annum.

Temperature of 21o – 35oC, Rainfall of 150 – 200cm per annum.

Soil requirement

A well-drained sandy-loamy soil, rich in humus.

Dried loamy soil. It can also tolerate poor soil.

Method of propagation

By yam seeds or yam sets.

By stem cuttings (25 – 30cm long).

Planting date

Early yam – November / December   Late yam – March / April

March to September depending on ecological zone.

Planting

Open a hole on the ridge using a hoe and place one yam sett inside with the cut surface turned upward and slantly placed at an angle of 45o

2/3 0f the stem cuttings are buried in slanting position or at an angle of 45o.

Seed rate

3 – 5 tonnes per hectare

 

Spacing

90cm x 100cm

100cm x 100cm.

Cultural practices

Mulching, weeding, application of fertilizers, staking, training of vine.

Weeding and fertilizer application.

Maturity period

8 – 12 months depending on variety.

10 – 15 months depending on varieties.

Harvesting

This is done by digging the soil gently with a cutlass to remove the tuber from the soil.

This is done by digging the soil gently around the tubers and pulling the stem gently so that the tubers are pulled along or use cassava puller.

Processing

It can be processed into yam flour.

It can be processed into cassava flour, garri or foofoo.

Uses

It is consumed by man and farm animals.

It is consumed by man and farm animals.

Storage

Yam tubers are store in barns.

Cassava is stored in processed form in sacs.

EVALUATION:   1. Outline how to cultivate some cereals

  1. Outline how to cultivate some legumes

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively