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Monday, April 23, 2012

2012 WAEC AGRIC. SCIENCE SPECIMENS EXPO

We are not sure of this stuff on here but we think it going to be of help. Still, the best way to pass an examination is to read hard and be smart. That's all. Check it now.

A- Organic manure

B- Inorganic manure

C- Sandy soil

D- Clay soil

E- Crucible

F- Source of heat/Bunsen Burner

G- Weighing Balance

H- Cutlass

I- Hoe

J - Shears

K- Rake

L- Watering can

M- Shovel

N- Groundnut seeds

O- Maize seeds

P- Guinea corn seeds

Q- Aphids

R- Lantern/Hurricane lamp

S- Chicken egg

T- Tick

U- A chart showing a pig/Hand drawing of a pig.

2012 AGRICULTURAL POSSIBLE QUESTION AND ANSWER

(specimen A-organic manure)
USES

1. poultry dr0pping

2. cow dung

3. farm yard manure

4. compost manure

5. ash

(SP B INORGANIC MANURE) are synthesized artificially USES: 1.N.P.K Fertilizer

2. Ammonium sulphate

3. sodium

4. urea

5. calcium ammonium nitrate

6. super phosphate

7. lime

ADVANTAGES AND BENEFIT OF A

1. It supplies nutrient to the crops

2. It increases soil fertility

3. It binds soil particles together.

4. Improves soil structure

5. It increases the yield of crops

6. It acts as a buffer in the soil.

METHODS OF APPLYING A.

Pad casting, spraying, side dressing, band methods.
EXPERIMENT TO FIND THE PERCENTAGE OF HUMUS CONTENT IN THE SOIL.

Mass of crucible=xg mass of cruable+dry soil=yg mass of dry soil=y-x=A(g),mass of dry soil alternating=z-x=B (g),mass of humus=A-B % of humus=A-B/AX100.

EXPERIMENT TO FIND THE % OF SOIL WATER

METHOD:
lnitial mass of the soil is recorded and heated in a crucible the mass is recorded after heating and the mass of water is recorded.






Mass of crucible= X (g), mass of cruable + fresh soil=Y-X=A(g),mass of crucible+heated soil=Z (g),mass of dried soil=Z-X=B (g),mass of water=(A-B) (g) (SPECIMEN H-CUTLASS) LIST eight uses, (Specimen I- HOE)list 5 uses (SPECIMEN J) list 5 uses (SPECIMEN K) list 5 uses(SPECIMEN L) list 3 uses (SPECIMEN M) list5 uses

(MAINTANANCE OF H,I,J,K,L& N)

1. Clean and dry after use

2. straighten bent blade

3. Rub the metal with oil

4. Avoid rough handling

5. keep in cool dry place

(SPECIMEN N- GROUNDNUT)
botanical name= ARACHIS HYPOGEA,varieties

1.castle carry

2. kano local

3. kano 50

4. samuru 38,soil requirement= 1. sandy, loamy and highly acidic to neutral.

PROPAGATION: seed,
PEST: aphid, rodent CONTROL
1.spray with insecticide
2.setting of traps
3.early harvest ,
DISEASES=>
1. rosette disease(virus)=>

2. tikka disease

3. Aspergillosis

4.seed rot (fungus) (SPECIMEN O) botanical name: ZEA.
varieties=duet maize,sweet,corn

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