WAEC 2017 Agric Theory Answers (Essay)

Agricultural Science 2 (Essay) 09.30am - 11.40am
Agricultural Science 1 (Objective) 11.40am - 12.30pm

 ia

(b)African Rice Development Agency (WARDA)
ii)International Livestock Centre for Africa (ILCA)
iii)International Crop Research Institute for Semi-Arid Tropics (ICRISAT)
iv)International Livestock Research Institute (ILRI)
v)Food and Agriculture Organizationb)

i)Agriculture regularly supplies raw materials like sugarcane , jute
cotton, oilseeds, tea, spices, wheat; paddy etc.
ii)Agriculture through Farmer-households used to save their money in the bank and other financial institutions which
ultimately is used by the industry owners in the form of investment.
iii)Industry regularly supplies scientific
tools and equipment’s like tractors, harvesters, pump-sets chemical fertilizers etc. to agriculture increase the per hectare production. Real
iv)Industry increase the market for finished agricultural goods some infrastructural development like
roads, railway, storage etc.

1ci. 
The disc plough is designed to work in all types of soil for functions such as soil breaking, soil raising, soil turning and soil mixing. • It is used to open the new fields and to process the stony areas.

1c)ii Beam: A heavy iron lever having an oscillating motion on a central axis, one end of which is connected with the piston rod from which it receives motion, and the other with the crank of the wheel shaft.

1ciii. 
Designed to distribute the weight of its load between the wheel and the operator so enabling the convenient carriage of heavier and bulkier loads than would be possible were the weight carried entirely by the operator.

 

6)
Scarcity: This refers to the basic economic problem, the gap between limited, I.e Scarce - resources and theoretically limitless wants. 

Scale of preference: is something used in economics to set a
list of products or services in the highest demand. Or the arrangement of our want in
ascending or descending order of importance or priority.

6b

i. To protect their crops,
ii. To protect their crops
iii. To protect their crops livestock,
iv. To protect their crops farming v. harvesting practices from setbacks.

6c.

i. To ensure that fishing fleets adhere to all the rules

6d)
i)Honey bees provide 80% of pollination for vegetable, fruit, seed and flower crops.
ii)They also pollinate the forage crops fed to dairy and meat animals
iii)industrial purpose
iv)employment
v)income generation
a)

 Availability of water(Rainfall)
-Availability of source of water for irrigation
-The type of soil or land where irrigationis to be carried out
-Availability of machine for installation
-Technical know how

(2b)
-Inadequate water supply or source of water
-High cost of equipment
-Lack of adequate technical know how
-Excessive dissolution of salts in irrigated water prevent proper growth
-Disturbance of movement of farm machinery


(2c)
DRAW THE RECTANGLE

(2di)
-Disc polugh
-Mould board plough

(2dii)
-Harrow(Disc harrow)
-Ridger
-Cultivator

4ai)
Causal organism:Fungus(Ustilago maydis)

4aii)
Mode of transmission:Spread by wind

4aiii)
Symptoms:
i)Galls on the ears
ii)The leaves turns black
iii)galls on the leaves and tassels

4aiv)
Cultural control:
i)destroy the diseased plant
ii)Use resistant varieties
iii)Treat seeds before planting

4b)
i)Taungya system
ii)Afforestation
iii)Regeneration
iv)Selective exploration
v)Forest regulation
vi)Deforestation

4ci)
i)egg producers
ii)Meat and egg producers
iii)Meat producers
iv)Game birds

4cii)
i)Egg producers:Turkey,chicken
ii)Meat and egg producers:Chicken turkey
iii)Meat producers:Chicken,Goat
iv)Game birds:Fowls


(5a)
Anthrax:
(i)-Bacillus anthracis

(ii)-Via respiration ie air borne

(iii)-Small blisters on skin,vomiting,diarrhea

(iv)
-Use of antibiotics
-Killing and burrying of infected animals

(5bi)
-Fish meals
-Blood meal
-Soya bean cake Groundnut cake

(5bii)
-Field peas
-Alfalfa

(5c)
-It is mobile
-It is perishable
-Its supply is inelastic
-Its reward is wage and salary
-It is a physical and mental effort on man