Get Real Waec 2017/2018 Agricultural Science Pratical Expo

 AGRICULTURE SPECIMENS
A: sandy soil
B: loamy soil
C: clayey soil
D: granite
E: NPK 15 : 15 (labelled)
F: wood ash (unsieved)
G: limestone (labelled)
H: cow dung
I: wheelbarraw
J; file
K: palm oil
L: cotton lint
M: liverfluke
N: tick
O: feather
P: apid (live/preserved,diagram,photograph)
Q: cowpea seeds
R: coconut fruit
S: tridax
T: chicken
U: tilapia fish

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WAEC AGRIC SPECIMEN ANSWERS

1ai) SPECIMEN A is a sandy soil

Specimen B is loamy soil

Specimen C is clayey soil

Physical properties of specimen A
1aii) it worms up quickly
ii) it has losses particles
iii) it is very porous
iv) it has poor water holding capacity

Physical properties of specimen B
I) it is dark brown in colour
ii) it gas good water holding capacity
iii) it contains humus
iv) it has high capillary action

physical properties of specimen C
I) it particles are sticky and tightly parked together
ii) it sails when wet and shrinks when dry
iii) it cab be molded into different shapes
iv) it is poorly aerated with high water holding capacity

1b) by adding of clay
ii) by application of farm yard manure
iii) application of composed manure
iv) by green manure
 Ic) specimen A:
i) cassava
ii) yam
 Specimen C:
i) banana
ii) plantain

Id) specimen B(loamy) soil is the best for crop production in agriculture because it contains humus( plant nutrients)
 2ai) Specimen D is granite

2aii) it is crystalline in structure
ii) it is resistance into weathering
iii) it is impervious
iv) it cannot be easily eroded
2aiii) construction of roads
ii) construction of farm buildings
iii) source of income
iv) as anti erosion measures

2b) specimen E is NPK 15:15:15( inorganic fertilizer) examples are

1a)
i) Nitrogen
ii)Phosphorus
iii) Potassium

1aii)
i)Ring method
ii) side placing
iii) Broad casting
2ai)
spe I
i)it is used for carring farm produce
ii)it is used for carring farm input eg fertilizer
spe J
i)it is used to sharpern edges of cutlass
ii)it is used to straghten rough edge of farm tools
2aii)
i)store in dry and clean environment or place
ii)wash and clean it after used
Urea, potassium nitrate, calcium ammonium nitrate etc.

physical properties of specimen E

2bii) it is a crystalline solid
ii) it is a granular in structure
iii) it is a hygroscopic
iv) it can dissolve in water

Advantages of specimen E

2biii) increase soil fertility
ii) it is easier and pleasant to apply
iii) it gives a very rapid response
iv) it increases crop yield
v) it contains high concentration of nutrients

disadvantage of specimen E

i) corrosive to plants
ii) can leach easily
iii) requires experience to apply
iv) leaves acidic residue to the soil

2biv) by broadcasting
ii) ring method
iii) foliar application
iv) band placement

3ai
Stunted growth
Gall in leaves
It cause disease to crops
It decrease the farm yield

3aii
Spray with insecticide
Uproot and burn infected plants

3bi
Used as cover crop to check erosion
It helps in nitrogen fixation in the soil
Bii
Grasshopper
Bean weevil
Been beetle

4ai)
3 breeds of farm animal which produce T are
-Brown leghorn
-White leghorn
-Rhoda island red
4aii)
-It is a source of protein to feed of livestocks
-It is a source of protein to man
-It is a source of income to breeders when sold
-It is a source of calcium to poultry
4bi)
-It can be harvested by using fishing net
-It can also be harvested by using hook and line
4bii)
-Oil
-Bone
-Scale
4biii)
-Sundrying
-Smoking
-Salting
-Canning
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3ai)
-Stunted growth
-Galls on leaves
-It causes diseases to crops
-It decreases the farm yield
3aii)
-Spray with insecticides
-Uproot and burn infected plants
3bi)
3bii)
-Pod borers
-Bean beatetle
-Leaf hoppers

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