2019 NECO AGRIC SCIENCE OBJ AND THEORY QUESTIONS AND ANSWERS

NECO 2019 AGRICULTURAL SCIENCE OBJ AND THEORY ANSWERS FROM EXAMCLASS.NET
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AGRIC. SCIENCE OBJ
1-10: DBBBEDBEDD
11-20: DDBAACDADD
21-30: EECAAABBDB
31-40: CECECDCCAC
41-50: AADCADAADE
51-60: CDEAEDADEB

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(2ai)
Farm surveying is defined as the process of measuring and mapping out the position, topography, size and boundary of an area of farmland. Such measurement by tables, plans or layout are done for specific purposes

(2aii)
[PICK THREE]
(i)Topography
(ii)Soil type
(iii)Accessibility
(iv)Water supply
(v)Health /Hygiene
(vi)Nearness to market
(vii)Drainage

(2b)
[PICK THREE]
(i)store in cool dry place
(iii)Paint,Oil or grease metal part before storage for along time
(iii)Clean or wash after use
(iv)Keep away from rain or moist places to avoid rusting

(2c)
[PICK FOUR]
(i)Inadequate land or land Tenure system
(ii)Inadequate Finance or Credit facilities
(iii)Poor Transportation network
(iv)Inadequate storage and processing facilities
(v)Inadequate basic Amenities
(vi)Poor marketing system
(vii)Inadequate Agricultural Education and Extension
(viii)Problems of Pest and diseases
(ix)Inadequate Tools and Machinery
(x)Inconsistent Government policies on Agriculture

(2d)
[PICK FOUR]
(i)The Decree states that all land in the country is Vested in the federal government to be held in trust for the people

(ii)The decree empowers each state to act on behalf of the federal government in all matters related to land in use in the state

(iii)It takes care of the inadequacies inherent in land ownership in Nigeria

(iv)It is a reform essentially aimed at encouraging proper,productive and efficient use of land

(v)All Nigerians are qualified to acquire land for use once they have obtained the age of 21years

(vi)It states that before anyone could be legally recognized as owning any piece of land,he must have applied to the government, paid for the land,and thereafter be issued a Certificate of Occupancy(C of O) on the acquired land

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(4ai)
Magnesium:
(i)Magnesium is used by plants for the metabolism of carbohydrates
(ii) It is used in plant’s cell membrane stabilization.

(4aii)
Manganese:
(i) It is used for nitrogen metabolism in plants
(ii) For synthesis of some enzymes in plants

(4aiii)
Molybdenum:
(i) It is used to synthesize amino acids within the plant.(ii) It is also needed by symbiotic nitrogen fixing bacteria in legumes to fix atmospheric nitrogen.

(4b)
(i)Less water is lost in the process and there is no run-off.
(ii)Subsurface irrigation systems can free up aboveground space.
(iii)Crops grown in these conditions may grow more uniformly.
(iv)With less water remaining on the leaves, there is a lowered risk of excessive moisture damage.

(4ci)
Overgrazing-
(i)Leads to erosion
(ii)Loss of soil nutrients

(4cii)
Clean Clearing:
(i)Leads to erosion
(ii)Reduction of micro organisms activities

(4ciii)
Bush Burning:
(i)It kills soil micro organisms
(ii)Leads to loss of soil nutrients.

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(8a)
[PICK ANY FOUR]
(i) Sanitation
(ii) Debeaking
(iii) Housing
(iv) Vaccination
(v) Feeding
(vi) Hatching
(vii) Incubation
(viii) Brooding
(ix) Candling
(x) Watering

(8bi)
Rinderpest:
(i) Quarantine and slaughter.
(ii) vaccination

(8bii)
Aspergillosis:
(i)Good hatchery sanitation
(ii) Avoidance of mouldy feed

(8biii)
Anthrax:
(i) Cut off infection source.
(ii) Dispose of anthrax carcasses correctly

(8biv)
Coccidiosis:
(i) Vaccination
(ii) Isolation of suspected animals

(8c)
(i) Poor growth
(ii) High competition for survival
(ii) It could lead to death of animal
(iv) It can lead to cannibalism

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(10ai)
The law of diminishing returns states that in a production process, as on input variable is increased, there will be a point at which the marginal per unit will start to decrease holding all other factors constant.

(10aii)
(i) Prices of rice
(iii) Income of the consumers
(iv) Expectation of change in the price in future
(iii) Taste of consumers
(iv) Availability close substitute

(10bi)
Total depreciation = Cost price – Selling price

Given that the cost of rice = N108,000
Selling price = N93,000

Total depreciation = 108,000 – 93,000 = N15,000

(10bii)
Annual depreciation = Total depreciation/ Life span

Total depreciation = N15,000
Life span = 2017-2007
Life span = 10years

Annual depreciation = 15,000/10 = N1,500

(10ci)
(i) It will afecct the enforcement of agricultural policies by government
(ii) It brings about low productivity

(10cii)
(i) Private producers
(ii) Cooperative groups
(iii) Subsistence producers
(iv) Rural youths

 

 

 

 

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