2022 WAEC GCE Agric Science (Essay & OBJ) Answers [3rd February]
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WAEC GCE JANUARY/FEBRUARY 2022 FREE AGRICULTURAL SCIENCE (AGRIC) QUESTION AND ANSWER ROOM [PRIVATE CANDIDATES]

Thursday, 3rd February, 2022
Agricultural Science 2 (Essay): 8:30am – 10:40am
Agricultural Science 1 (Objective): 10:40am – 11:30am

A. 2022 WAEC GCE AGRICULTURAL SCIENCE ESSAY (THEORY) ANSWERS | 3RD FEBRUARY, 2022

(1a)
(i)To examine the need for effective agricultural development in Nigeria.
(ii)To assess the level of agricultural development in Nigeria and to recommend ways of improving agricultural development in Nigeria.
(iii)To examine the importance of agriculture to the economy of Nigeria.
(iv)To examine the impact of agricultural development on economic development in Nigeria.
(v)To examine the relationship between agricultural development and economic development in Nigeria.

(1b)
(i)Refrigeration.
(ii) Incubation.
(iii) Milking ( machines)
(iv) Drying of produce or material.
(v) Shelling of fruits/ seeds.

(1c)
(i)Maintenance cost may be high
(ii)It can cause five Lazard
(iii)It cannot be widely used in field operation


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(2a)
(i) Igneous rock: Igneous rocks form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.

(ii) Sedimentary rock: Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension.

(iii) Metamorphic rock: Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

(2b)
(i) Water
(ii) Soil conditions
(iii) Climatic factors
(iv) Cropping system options
(v) Expected profit and risk
(vi) Labour availability and mechanization potential

(2c)
(i) It is possible to provide favourable growth conditions
(ii) Improved crop uniformity
(iii) Eliminates the problem of difficult soils

(2d)
(i) Lopping Shears
(ii) Hand Pruners
(iii) Pruning Saw

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(3ai)
[Tabulate]

DISEASES
- Rosette

(i) CROP AFFECTED
- Groundnut

(ii) CAUSAL ORGANISMS
- Cercospora arachidicola

(iii) SYMPTOMS
- Elongated shoots.

(iv) TWO CONTROL MEASURE
- Give your roses plenty of space. ...
- Control multiflora rose in your area.

(3aii)
DISEASES
- Gummosis

(i) CROP AFFECTED
- citrus crops

(ii) CAUSAL ORGANISMS
- Phytophthora fungi

(iii) SYMPTOMS
- water soaked large patches on the basal portions of the stem near the ground level.

(iv) TWO CONTROL MEASURE
- Protect from Sunscald
- Drain Water from the Base of the Tree.

(3bi)
(a) Beans
(b) Lentils

(3bii)
(a) Cinnamon
(b) Ginger

(3c)
(i) Irrigation equipment is expensive to install
(ii) Inadequate water supply for irrigation in certain areas and periods
(iii) Maintenance cost is high
(iv) Inadequate technical know
(v) The high relative humidity on irrigated land favours the growth of disease-causing organisms
(vi) Salts that are toxic to crops could be introduced to the farmland through irrigation water

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(6a)
(i) scarcity of labourers leading to high labour cost and decrease in export and hence Gross Domestic Product.
(ii) high cost of labour will lead to high cost of production
(iii) decreased food and cash crop production
(iv) decreased animal production and poor adoption of agricultural innovations

(6b)
(i)boost agricultural production through the construction of farm service centres for efficient distribution of agricultural inputs
(ii) construction of rural infrastructures such as feeder roads and earth dams
(iii) Increased level of extension contact with farmer.
(iv) bring agricultural services closer to the people in rural areas.
(v) source and make available farm inputs to farmers
(vi) helps in the reclamation of degraded agricultural lands.

(6c)
(i)soybean meal
(ii)sunflower meal
(iii)cottonseed cake
(iv)groundnut cake.

B. 2022 WAEC GCE AGRICULTURAL SCIENCE OBJECTIVES (OBJ) ANSWERS | 3RD FEBRUARY, 2022

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