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2017 Waec Agricultural Science 3 (Practical) Answers – May/June Expo

Remove 2c from the previous ans


Agric practical solution


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

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