Free Waec 2017 Agricultural Science (Practical) Answers – May/June Expo

👨‍💻 BccM Coded Tips
Sub: Agriculture practical
No: +2348166037729

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

1aii)
i)Ring method
ii) side placing
iii) Broad casting

1c)
i)it increase organic content of the soil
ii) it increase soil structure
iii) it increase soil perforation

2ai)
specimen I
i)it is used for carring farm produce
ii)it is used for carrying farm input eg fertilizer

specimen 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

2bi
i) it is a crystalline solid
ii) it is a granular in structure
iii) it is a hygroscopiciv) it can dissolve in water

Advantages of specimenE

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

2ci) specimen F. Wood ash
i) smooth to touch
ii) powdery in form
iii) grey in colour
iv) odourless

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

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
-man 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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