Nabteb 2017 Agric Practical Answers – May/June Expo

1a)
Tabulate
Specimens
-A
-B
-C
-D
Common names
-Elephant grass
-Spear grass
-Centrosema
-Tropical kudzu
Botanical names
-Pennisetum purposeful
-Imperata cylindrical
-Centrosema pubescent
-Pueraria phasaelodes

1b)
-They help to fix nitrogen into the soil
-They provide food for livestock especially ruminants
-They increase infiltration and percolating of water,thereby reducing soil erosion and run off

1c)
-A Is propagated by seeds or stallions
-B is propagated by the rhizome stem
-C is propagated by the seeds
-D is propagated by the seeds

1d)
Grasses | legumes
A | C
B | D
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2a)
Specimen E is tick
Specimen F is liver fluke
Specimen G is tape worm

2b)
-E can be found on the skin of animals
-F can be found in the bile duct of the liver of animals
-G can be found in the animal stomach

2c)
-Possession of hooks and sucker for attachment to the intestine
-Possession of flat body for the absorption of digested food
-It has small head for easy penetration
-It has long segmented body for the absorption of digested food
-Possession of tick cubicles which resists digestive enzyme of the host

2d)
-It reduces the growth of the host
-It causes great annoyance and irritation to their host

2e)
– Maintain good sanitation of the environment
-Provide clean and uncontaminated water and feed the animal
-Reular dippings of animals to destroy tick
-By changing animal beddings regularly
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3a)
– Specimen H is hand towel.
-Specimen I is sickle.
-Specimen J is Rake.
-Specimen K is mat tock.

3b)
Specimen H
-It is used for digging holes on beds
-For spreading manure
-For transplanting seedlings

Specimen I
-For cutting forages for livestock.
-For harvesting cereals like ; rice, maize, millet. Etc.

Specimen J
-For removing rubbish ( weeds) from the farm
-For leveling of soil surface

Specimen K
-Uprooting soil stumps
-Digging of the soil.

3c)
-The metal can be damaged or corroded.
-The wooden handle can be destroyed by termites.

3d)
-Axe

3e)
-The should not be left lying about in the farm
-Sharpen tools that have metal blades
-By using a particular tools for which it was designed.
-Worn out part should be replaced without delay.
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4a)
-Specimen L is cassava Tuber.
-Specimen M is yam Tuber.
-Specimen N is orange fruit.
-Specimen O is Tomato Fruit

4b)
-L=stem cutting.
-M=yam sett or tuber.
-N=seeds or vegetable propagation.
-O=seeds.

4c)
-Weeding of land preparation
-Fertilizer application
-Staking
-Harvesting

4d)
The plant population
=0.9m x 0.9m x 1000
=810plants per hectares
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