Welcome great EduPodian, here is your Third Term SS2 Agricultural Science Lesson Note excerpt.
Scheme of Work
1-2 Common Weeds Found in Farm: Meaning, Types, Examples and Economic Importance
3-4 Crop Improvement: Meaning, Aims, Methods, Processes of Crop Improvement
5-6 Basic Economic Principles: Principles of Demand and Supply, Effects of Demand and Supply, Law of Diminishing return
7-8 Farm Records and Farm Accounts
9-10 Animal Nutrition
11 Revision
12 Examination
REFERENCE BOOKS
• Essential Agricultural Science for Senior Secondary Schools, by O.A. Iwena
• WAEC PAQ
• Essential economics
Week 1:
TOPIC: COMMON WEEDS FOUND IN FARMS
CONTENT
– Meaning of Weeds
– Effects of weeds on crops and the Economy
– Various types of weeds and their botanical names
– Methods of weed control
MEANING OF WEEDS
A weed is any plant that grows in a place where it is not (expected to grow) wanted
ECONOMIC IMPORTANCE OF WEEDS
1. They compete with crops for space
2. Weeds compete with… Click here to order the complete Agricultural Science Lesson Note for SS2 third term
Week 2:
DISPERSAL OF WEED SEEDS AND FRUITS
Most seeds and fruits of weeds are generally dispersed by wind and animals. The mode of dispersal are;
1. Dispersal of seeds by wind
Such weeds have feathery, winged or powdery seeds e.g. Tridax (pwd weed), goats weed, guinea grass, elephant grass and many other species of grasses.
2. Dispersal of seeds by Animal
Animal dispersed weeds usually have sticky, hooked, edible or colourful fruits or seeds. The sticky and hooked types of fruits and seeds adhere to the coats of grazing animals and are carried from one place to another. Examples of such animals are; rabbits, rats squirrels, antelope and man. Pig weed and commelina spp are example of such weed.
3. Dispersal of seeds by water
Water dispered weeds have water proof cuticles, air spaces within the fruit and a light weight
4. Dispersal of seeds by… Click here to order the complete third term Agricultural Science Lesson Note for SS2
Week 3:
TOPIC: CROP IMPROVEMENT
CONTENT
– Meaning of crop improvement
– Aims of crop improvement
– Methods of crop improvement
– Processes of crop improvement
MEANING OF CROP IMPROVEMENT
Crop improvement is defined as the science that deals with the development of new crop varieties with superior quality and quantity.
AIMS OF CROP IMPROVEMENT
1. To increase yield
2. To improve the quality of produce
3. To adapt to climatic conditions
4. To increase resistance to diseases
5. To… Click here to order the complete Lesson Note on Agricultural Science SS2 third term
Week 4:
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