Waec 2023 Agricultural Science Obj & Essay Question And Answer Now Available

Agriculture-OBJ!
1-10 CDCBCABCAD
11-20 BCCBCACCAC
21-30 CBABACCABD
31-40 ACDCBDADDA
41- 50 CBADACCBCA

(1a)
(PICK ANY ONE
Credit in agricultural finance involves the provision of loans that must be repaid by borrowers, while subsidies are grants or direct payments provided by the government to support specific agricultural objectives without the requirement of repayment.

OR

Credit is a situation whereby sellers allow buyers to take possession of goods and services and pay later while subsidy is a situation whereby part of the money a buyer is meant to pay for good is paid for by the government

(1b)
(PICK ANY FIVE)
(i) Fertilizers
(ii) Seeds
(iii) Livestock feed
(iv) Research and development
(v) Crop insurance
(vi) Training and Education
(vii) Agricultural machinery
(viii) Energy
(ix) Pesticides and Herbicides
(x) Labour

(1c)
(PICK ANY SIX)
(i) Tire Inspection
(ii) Regular oil changes
(iii) Belt inspection and adjustment
(iv) Hydraulic system maintenance
(v) Fuel filter replacement
(vi) Greasing and lubrication of moving parts
(vii) Cleaning and replacing air filters
(viii) Inspecting and tightening bolts and connections

(1d)
(PICK ANY FIVE)
(i) Read and understand the operator’s manual
(ii) Wear appropriate protective gear
(iii) Conduct pre-operation checks
(iv) Always check the water level
(v) Avoid loose clothing and jewelry
(vi) Use safety guards and shields
(vii) Clear the work area
(viii) Follow safe refueling practices like turning off the machinery before refueling

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(2a)
(i) Agricultural ecology involves studying the interactions between agriculture and the environment, focusing on ecological processes and impacts.

(ii) An ecosystem, refers to a community of organisms and their interactions within a specific area, encompassing both living and non-living components.

(2bi)
(i) Crop
(ii) Live stock

(2bii)
(i) Soil
(ii) Climate
(iii) Water

(2c)
(i) Ensure ventilation.
(ii) Guard against pests.
(iii) Keep bags elevated.
(iv) Maintain cleanliness.
(v) Follow FIFO system.

(2d)
(i) Petunias
(ii) Marigolds
(iii) Begonias
(iv) Geraniums

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*AGRICULTURAL SCIENCE*

(3ai)
Rootknot nematode/Meloidogyne spp.

(3aii)
Nematodes are soil borne so are transmitted through soil movement and run-off water

(3aiii)
(i)Enlargement of certain cells of the roots in the form of knots
(ii)Retarded growth

(3aiv)
[PICK ANY TWO]
(i)Crop rotation
(ii)Use resistant varieties
(iii)Use nematicides such as furadan
(iv)Use of African marigold (biological control)
(v)Heavy doses of organic matter application
(vi)Soil sterilization

(3bi)
FERTILIZER APPLICATION
(i) Excessive application of fertilizers can cause soil acidity
(ii) Excessive of it’s application can also reduce the activities of the soil organisms
(iii) Excessive application may also hinder the growth of crops

(3bii)
CLEAN CLEARING
(i)It leads to reduction of organic matter
(ii)It leads to loss of soil nutrients
(iii)It upsets the ecosystem or ecological balance

(3biii)
OVERGRAZING
(i)It exposes the soil to erosion
(ii)It destroys the soil structure
(iii)It causes poor growth and regenerative capacity of vegetation

(3c)
(i)It is used for crop production
(ii) Livestock production
(iii) Fisheries

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(4a)
(i)Preparation of Planting Site
(ii)Stem Cutting Selection and Preparation
(iii)Planting the Stem Cuttings
(iv)Watering and Mulching

(4b)
(i)Food Consumption
(ii)Animal Feed
(iii)Industrial Applications

(4ci)
Expected number of yam plants = Number of planting spots per hectare * Total area of the farmland
Expected number of yam plants = 10,000 * 1.5 = 15,000
Therefore, the expected number of yam plants on the 1.5 hectares of farmland would be 15,000 plants.

(4cii)
Total weight = Expected number of yam plants * Average weight of each yam tuber
Total weight = 15,000 * 3.5 kg = 52,500 kg
Therefore, the total weight of the yam tubers harvested on the 1.5 hectares of farmland would be 52,500 kilograms (or 52.5 metric tons).

(4d)
diet refers to the overall composition and combination of feeds and ingredients that an animal consumes over a certain period. It encompasses the entire range of foods and nutrients consumed by the animal WHILE A ration, on the other hand, is a specific amount or quantity of feed that is provided to an animal during a single feeding event or within a specific time period, typically a day.

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