2021 NECO GCE Agric (Essay & OBJ) Answers [8th December]

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NECO NOV/DEC 2021 FREE AGRIC SCIENCE (AGRIC) QUESTION AND ANSWER ROOM

Wednesday 8th December, 2021
Agricultural Science Paper III & II (Objective & Essay) 2.00pm – 5.00pm

NECO GCE AGRIC SCIENCE (ESSAY) ANSWERS 2021:

(2a)
(i) Non-Implementation of government policies.
(ii) Lack of modernization and mechanization.
(iii) Farmer's illiteracy, ignorance and lack of funds.
(iv) Poor infrastructure
(v) Absence of nodern storage or processing facilities.
(vi) Loss of land to natural disaster.

(2b)
(i) It can be used for pushing or pulling agricultural machinery or trailers.
(ii) It is for ploughing for initial cultivation of soil in preparation for sowing seed or planting
(iii) It is also used to cut up unwanted weeds or crop remainders.
(iv) Planting can also be done using a tractor by using the correct farm implement which is called the planter.
(v) It is used in landscaping and land clearing such as shifting heavy materials.

(2c)
(i) Land tenure system: This type of land ownership in Nigeria does not allow the use of farm machines. When there is a land tenure system, there will be inadequate land to practice farm mechanization.
(ii) Poverty of farmers: Some farmers are poor and cannot afford to own farm machines which contributes negatively in farm mechanization growth.
(iii) Inadequate machines and facilities: There are no enough facilities to facilitate farm mechanization process.
(iv) Bad nature of land (Topography): The topography of Nigerian lands are rough and too bad for mechanization. This hinders farm mechanization growth in Nigeria.
(v) Soil types: The soil type of some parts of Nigeria does not suit mechanization and suitable machines have not been produced.

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(4ai)
Drainage is the removal of excess water which may be caused by rainfall, too much irrigation water or other origins such as canal seepage or floods, either from the ground surface or from the rootzone.

(4aii)
(i) It is often more costly to implement per unit area compared to surface drainage
(ii) It can contaminate bodies of water if not properly maintained

(4b)
[Pick Any THREE]
(i) Rain
(ii) Temperature
(iii) Time
(iv) Topography

(4ci)
TEMPERATURE:
(i) Increase in temperature helps in binding of the soil.
(ii) High temperature brings about weathering in soil

(4cii)
SOLUTION:
(i) It increases the degree of weathering and therefore the extent of soil development.
(ii) It results to decrease in soil PH

(4di)
(i) A good soil structure is important to allow air and water into the soil which are vital for healthy plant growth
(ii) It will improve drainage and reduce soil erosion caused by excess surface run-off
(iii) It prevents anaerobism, waterlogging and nutrient lock-up and ultimately of plants

(4dii)
(i) The structural units are approximately spherical or polyhedral.
(ii) They are bounded by curved or very irregular faces that are not casts of adjoining peds.

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(6a)
(i) It reduces the quality of the crop
(ii) It reduces the market value of the crop
(iii) It affects the growth of the crop
(iv) It reduces the fertility of their seeds

(6b)
(i) Early planting
(ii) Early harvesting
(iii) Crop rotation
(iv) Mixed cropping

(6c)
(i) Maize rust: Elongated postules on both leaf
(ii) Cowpea leaf spot: Stunted growth
(iii) Groundnut Rosette: Mottling of the foliage
(iv) Coffee leaf rust: Yellowish colour if leaf

(6d)
(i) Indiscriminate felling of trees is prohibited; only licensed timber dealers have the same mandate to cut only mature trees.
(ii) Illegal Hunting of wild animals or poaching is prohibited.
(iii) The prohibition of bush burning and creation of fire around the forest.
(iii) Educating the public on importance of reforestation

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(10a)
Agricultural Extension can be defined as an informal system of education whereby information on new Innovations and ideas are disseminated to farmers.

(10b)
(i) Individual contact method: This involves direct contact between the farmers and the extension officers. Such method includes farm and home visits, office call, telephone calls, correspondence and result demonstrations

(ii) Group contact method: This involves the extension officers and a group of farmers. It includes methods and result demonstrations, general meetings, lectures, workshops, field works and excursions.

(iii) Mass media: This method involves the reaching of many people with extension messages. These messages must be general so as to be of interest to all. Such mass media include posters, agricultural shows , leaflets, cinema, newspaper/magazines, radio and television

(10c)
(i) Farm valuation
(ii) Farm income statement
(iii) Sales account
(iv) Purchase account

(10d)
-Labour:
(i) They are responsible for the production of a good, including factory workers, managers, salespeople,
(ii) They produce adequate designed the machinery used in production.

-Entrepreneur:
(i) They combine all the other factors of production to conceptualize, create, and produce the product or service.
(ii) They are the drivers behind any technical change in the economic system


NECO GCE AGRIC SCIENCE (OBJECTIVE) ANSWERS 2021:

1-10: BAACBABBAA
11-20: CDCBAACEAA
21-30: AEEBDDDECD
31-40: CBCBECEDBD
41-50: EBEAACBEDE
51-60: BEAAEEBABA

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