WAEC GCE 2020 - AGRIC ANSWER

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

(1b)
Nitrogen = 10
Phosphorus = 20
Potassium = 15
Total = 45

Nitrogen = 10/45x100 = 22.22%
Phosphorus = 20/45x100 = 44.44%
Potassium = 15/45x100 = 33.33%

(1ci)
Phosphorus

(1cii)
It increases crop resistance to diseases

(1d)
(i) Broadcasting
(ii) Ring Method
(iii) Row or side placement
(iv)Top dressing

(1e)
(i) NH3
(ii) Ammonium phosphate
(iii) Ureas

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(2a)
A. rake
B. Head pan
C. Spade

(2b)
SPECIMEN A
(i) removing rubbish from the farm
(ii) leveling of soil surface

SPECIMEN B
(i) mixing manure
(ii) collecting of harvested crops

SPECIMEN C
(i) transporting of seedlings
(ii) digging holes

(2c)
(i)wooden handle
(ii)metal blade

(2d)
(i) they must not be left lying about in the farm
(ii) use them for their right purpose
(iii) sharpen them
(iv) they must not be exposed to sun light

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(3a)
(i) layering

(3aii)
(i)stalk
(ii)bent branch
(iii)peg

(3b)
(i)bend the brancg
(ii)insert into the soil
(iii)cover it with soil particles
(iv)peg it to hold it down
(v)apply water

(3c)
(i) ensure the branch did not Separate totally from parent plant
(ii)ensure there is enough supply of water
(iii)ensure the peg hold the bent branch firmly

(3d)
(i)grapes
(ii)clematis
(iii)pothos

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(4a)
I. Ear - notching.
II. Branding
III. Numbering
IV. Ear tagging

(4bi)
(i)it aid easy identification
(ii)it does not expose farm animal to disease attack

(4bii)
(i)it brings about easy identification
(ii)it beautify the livestock

(4ci)
(i)the number can be easily erased
(ii)the Animal cannot be easily located when stolen

(4cii)
(i)it cause pain for livestock
(ii)it expose livestock to attack of diseases

(4d)
(i)to prevent them from being stolen
(ii)it beautifies them
(iii)it brings about easy Separation of farm animals

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