2017/2018 Nabteb Gce Agric / Agricultural Practical Questions And Answers Now Available

*2017 NABTEB AGRIC SC PRACTICAL SOLUTION*
1a)
determination of the rate capillarity of different
soil samples capillary
OR
Experiment to compare capillary action of soil
types
========================
1b)
A= test tube
B=cotton wool
C=Water
D= Beaker
*(1c)*
i)Get the three different soil samples ie
clay,loamy and Sandy soil
ii)get three set of capillary tubes
iii)plug cotton wool at the each end of the tubes
iv)fill 3 beaker with water and insert the
capillary tubes which are already filled with soil
sample with the plugged end at the base
v)make note of the levels of the water as it rises
in the tubes.
ix)The clay soil has the highest capillarity with
Sandy soil with the lowest capillarity
==========================
*(1d)*
i)the soil labelled III has the highest humus
content
ii)it is very dark in color
iii)it has the highest level of fertility
*(1e)*
– Test tube III
______________________________
*2a)*
A= ranging rod
B= marking pin
*2b)*
i)red
ii)white
*2c)*
The equipment are used for surveying purposes
*2d)*
It can be used for marking or indicating a
particular point on a Land
*2e)*
i)theodolite
ii)measuring tape
iii)Plane table
iv)surveyor’s chains
iv)graphometer
*2f)*
i)By cleaning after use
ii)By keeping it in a cool dry place.
______________________________
*3a)*
i)cassava tubers peeled, washed and grated or
crushed into a mash
ii)the mash is being place in a porous bag and
compressed for 1-3 hours to remove excess
starchy water.
iii)the dried mash is then sieved
iv)the seived mash is then fried
v)the fried mash is allowed to be aired
ix)it results into garri
*3b)*
i)whitefly
ii)mealybugs
*3c)*
i)bacterial blight
ii)cassava mosaic
*3d)*
i)staking avoids rotting of leaves
ii)it give room for plants to grow upwards
rather than creeping which enhances
Photosynthesis
iii)it avoid overcrowding among crops
*3e)*
i)tuber cutting ie use of yam setts
ii)stem cutting
______________________________
*4a)*
i)Egg Candler
ii)water trough
iii)feeding trough
*4b*
-i) To test the hatchability of eggs
-ii)To provide livestock with water
-iii)To provide feed to livestock
*4c)*
*Choose Two*
i)Eggs are liable to break easily
ii)Candling between the age of 11 and 14 days of
incubation
iii)Interrups the movement of Embryo to the
length axis of the egg
*4d)*
i)Switch on the equipment to produced rays of
light
ii)Place the egg on top of the case so that rays of
lights pass through the egg
iii)Separate healthy egg from unhealthy ones
*4e)*
i)it is not easy to maintain
ii) it increases cost of production
COMPLETED

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