WAEC Agricultural Science Practical Answers 2023 Friday 26 May 2023 can be accessed below.
Newsone reports that the time for Waec Agricultural Science Practical 2023 is listed below for the first Agricultural Science Practical and the second Agricultural Science Practical.
Attention all WAEC candidates! Are you prepared for your upcoming Agricultural Science Practical exam on May 26th, 2023? Below are Past Agricultural Science Practical Answers.
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AGRIC SCIENCE PRACTICAL ANSWERS
(1a)
A; hand fork
B; dibber
C; cross staff
D; cast net
E; feeding trough
(1b)
A; it is use for digging up weeds
B; it is use for making holes in the soil
C; it is use to make angel between two objects
D; it is use for catching fish
E; livestock feed are placed in it.
(1c)
Wash rinse and dry after use
(1d)
(i) horn
(ii) swivel
(1e)
(i)it reduce wasted of animal feeds
(ii)it increases level of hygiene of animal feeds
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(2a)
F; Loamy soil
G; Clayey soil
H; Sandy soil
I; Earthworm
J; Termite
(2b)
(i)it makes corn to germinate well
(ii)it is Rich in humus
(iii)it is well created and not water logged
(2c)
(i)G; is reddish brown while H; is brownish in colour
(ii)G; is harder than H
(2d)
(i) Temperature
(ii) pH
(iii) Rainfall
(2e)
(i) Hard picking
(ii) Spraying with insecticides
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(3a)
K; Grasshopper
L; Bean weevil
M; Mealybug
(3b)
K; bitting and chewing
L; boring
M; piercing and sucking
(3c)
K; cassava
L; Bean
M; cassava
(3d)
(i)it create holes in crops
(ii)it expose crops to attack of disease
(iii)reduce market value crops
(3e)
(i) Physical control
(ii) Biological control
(iii) Chemical control
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(4a)
N; Animal skin
0; Tick
P; Roundworm
(4b)
(i)it serve as food
(ii)it is a raw material for making leather material
(4c)
(i)presence of proboscis
(ii)presence of legs
(4d)
(i)it causes disease in animal
(ii)it causes malnutrition in animal
(4e)
Under spec O;
(i) dog
(ii) cow
Under spec P
(i)goat
(ii)sheep
(4f)
(i) Physical control
(ii) Chemical control
COMPLETED!!!
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(1ai)
(i) Government should erect as many market infrastructures as possible
(ii) Government should stabilize prices of farm produce in the county.
(1aii)
(i) Storage facilities should be provided by the government at subsidized rates.
(ii) Provision of storage chemicals such as fumigants.
(1aiii)
(i) Construction of new feeder roads to open up the rural areas.
(ii) Construction of water ways to link up the riverine areas.
(1aiv)
(i) Rural farmers should be trained on modern system of farming.
(ii) Mass literacy programme should be embarrassed upon by the government. E.g. Nomadic education.
(1av)
(i) Flooding should be avoided.
(ii) Terracing and strip cropping should also br practiced.
(1b)
(i) Determination of size of farmland: Farm survey helps to determine the size or hecterage of farmland.
(ii) For Feasibility Studies: Farm survey is also important or useful for the preparation of feasibility studies.
(iii) Proper Use Of Farmland: Farm survey enables farmers to make proper use of land.
(iv) Planning Of Farmstead: Farm maps or soil maps are useful in planning the farmstead.
(1c)
(i) Creating a crumbly layer for planting
(ii) Protects the soil surface from rapid drying
(iii) Improves both the air and water penetrability into the soil
(iv) Improves nutrient availability to plants.
(2a)
(i)Broadcasting and band placement
(ii)Ring method and side dressing/Row placement
(iii)Foliar application and fertigation/Application through irrigation method
(iv)Plough-sole method and top dressing
(2b)
Alley cropping
This involves planting of leguminous trees that are wide apart as to allow the growing
of strips of arable crops within the rows of trees. WHILE Ley farming
This is the practice of alternating arable crop production with the growing of forage
crops at different periods of time on a piece of land.
(2c)
(i)General Provisions
(ii)Constitution of Forest Reserves and Declaration of Protected Forests
(iii)Administration of Forest Reserves and Protected Forest
(iv)Local Government Plantations and Forest Reserves
(v)Licences
(2d)
(i) manual sprinkling e.g. hand, brooms, brush.
(ii) Use of watering can and drip irrigation
(iii) Channel irrigation and sprinkler irrigation.
(3ai)
Macronutrients are the nutrients your body needs in larger amounts, namely carbohydrates, protein, and fat. These provide your body with energy, or calories. WHILE Micronutrients are the nutrients your body needs in smaller amounts, which are commonly referred to as vitamins and minerals.
(3aii)
(i)zinc (Zn)
(ii)manganese (Mn)
(iii) copper (Cu)
(3bi)
-Advantage vegetative propagation-
(i)Plants that are propagated vegetatively are exactly like their parents they are true to type
(ii)Plants established by vegetative means usually grow faster, and mature earlier than those established from seed
(iii)Seed dormancy problems are completely eliminated in vegetative propagation
(3bii)
-Disadvantage vegetative propagation-
(i)The processes involved are time consuming
(ii)There is possibility of the transmission of diseases in vegetative materials
(iii)The planting material is usually bulky
(3c)
(4a)
-Dig the silage pit
-Cut the fresh grass/forage before flowering
-Wilt for few hours/day
-Collect the wilted forage and lay it at the bottom of the pit to a reasonable level
-Add ash/urea sprinkled on it
-Compress and add another layer of wilted forage, compress and add further ash/urea-fertilizer
-Add more wilted forage, ash/urea and compress until pit is filled
-Finally compress and then cover with tarpaulin or plastic polythene sheet
-Leave to ferment with minimum of 2 – 4 weeks
(4b)
FILL THE TABLE WITH THIS BELOW.
(i)Tagetes
(ii)Chamaecyparis obtusa
(iii)Sida acuta
(iv)Talinum fruticosum
(4c)
(i)earing disease-resistant stock
(ii)carrying out rotational grazing
(iii)feeding balanced ration
(iv)vaccinate their animals if possible and necessary.
(v)Segregate sick animals and call a veterinarian for advice.
(4d)
(i)rodents like giant rats
(ii)grass cutter.
(iii) nematodes and birds.
(6ai)
Depreciation: (i) refers to the reduction in the value or performance of an asset, e.g. a farm machinery.
(6aii)
Farm inventory: (i) refers to the records of all the assets and liabilities of a farm, Examples of assets are cash at hand, land and landed properties, machinery, crops and livestock.
(6aiii)
balance sheet; (i)is a financial statement which shows the assets, liabilities and net worth of a farm at a point time. e;g; loan, record.
(6b)
(i)Originality in thought, word and action
(ii)He must be a good listener
(iii)Must be patient with the people and be able to offer clear judgement in all issues
(iv)Must be honest and transparent
(v)Must be able to take steps without being directed
(vi)Must be able to organize and implement programmes
(6c)
(i)Favourable weather condition and low importers of rice.
(ii)Reduction in the price of inputs.
(iii)Reduction in taxation which stimulates production or Importation of rice.
(6d)
(i)Through urine
(ii)Through feces
(iii)through evaporation from the body surface and respiratory tract.
(3a)
I: Arachis Hypogaea
J: Gossypium Species
K: Elaeis Guineensis
L: Hevea Brasiliensis
(3b)
I: Legume crops
J: Fibre crops
K: Oil crops
L: Latex crops
(3c)
(i) Cleaning
(ii) Dehulling
(iii) Cooking
(iv) Pressing
(v) Filtration
(3d)
(i) Brown germ
(ii) Galadema
(iii) Root blast
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(4)
M: Birds
N: Fowls
O: Ruminants
(4b)
N: it has thick muscular wall and may contain stones
O: Composed of several sacs.
P: It is the region where most digestion of food takes place.
Q: It is a large, meaty organ that sits on the right side of the belly.
(4c)
N: Gizzard
(i) It modified for grinding food
(ii) Its located between sac like and the intestine
O: Rumen
(i) It allows mixing and churning of digesta
(ii) It acts as a storage or holding vat for food.
P: Small intestine
(i) Absorb digested food completely
(ii) It secretes intestinal juice.
(iii) Churn and mix ingested food, making it into chyme
Q: Liver
(i) Enzymes activation.
(ii) Bile production and excretion
2a)
F – It is a liquid substance
G – It gives a characteristic odour
H – It gives a characteristic odour
(2aii)
They aid the growth of crops
(2aiii)
(i) Broadcasting
(ii) Placement
(iii) Foliar application
(2b)
Pick a good compost bin then locate a spot with good sunlight. Keep the compost bin in a good plate and add green and brown organic matters. Alternate between the layers timely and wet the compost as well. Always turn the compost and allow to decay.
(2c)
F – Clean up excess Fertilizer on your sidewalk or driveway
G – Ensure it is properly added to the soil
H – Ensure hand gloves are worn
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(1a)
The Specimen B is a Castration device which employs a large clamp designed to break the blood vessels supplying The testicles. Once the blood Supply to the testicles is lost testicular necrosis
the testicles shrink, Soften. And Castration is said to have occured.
(1b)
Specimen C:
(i) used for livestock Identification
(ii) used for Monitoring livestock behaviour
Specimen D
(i) for fastening nuts & bolts
(ii) for loosening nuts and bolts
Specimen E
(i) For lightening
(ii) For generating Especially heat poultry
(1c)
Specimen B
(i)elastrator
(ii) surgical blade
Specimen E
(i) electric bulb
(ii)candle light
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1a)
A is an enlarged pair of scissors which possesses two long metal blades and two handles which may be wooden, metal, rubber or plastic. The blades are sharpened at one edge and are connected to the pivot by bolt and nut.
(1b)
SPECIMEN A;
(i) It is use for pruning process
(ii) It is used for cutting flowers
SPECIMEN B;
(i) It is use for weeding
(ii) It is used for trimming hedges or shrubs
(1c)
SPECIMEN A;
(i) Store in a cool dry place
(ii) Clean or wash after use
(iii) Keep away from rain to prevent rust
SPECIMEN C;
(i) Store in a cool dry place
(ii) Always wash and clean after use
(iii) Sharpened the blade properly
(1d)
(i) Hoes
(ii) Hand Trowel
(2a)
TABULATE
SPECIMEN E;
(i) It is liquid
(ii) Rich in Nitrogen
(iii)It decreases cadbium concentration in the soil
(iv) It gives lower shoot dry matter
(v) It can be applied through irrigation system
(vi) It is an inorganic substance
SPECIMEN G;
(i) It is solid
(ii) Not rich in Nitrogen
(iii) It does not decreases cadbium concentration in the soil
(iv) It gives higher shoot dry matter
(v) It can not be applied through irrigation system
(vi) It is an organic substance
(2bi)
Nitrogen
(2bii)
(i) NPK Fertilizer 15:15:15
(ii) Nitrate
(iii) Ammonia
(2c)
(i) It can damage plants
(ii) It impedes seed germination
(iii) It is not stable
(iv) It affect seedling growth
(v) It affect early plant growth in the soil
(3a)
(i)Specimen H: Centrosema pubescens
(ii)Specimen I: Pennisetum purpureum Schumach.
(iii)Specimen J: Pueraria phaseoloides
(3b)
(i)Specimen H: is propagated by seed
(ii)Specimen I: is propagated vegetatively through stem cuttings
(iii)Specimen J: is propagated by seeds
(3c)
(i)It is a vigorous twining, trailing and climbing perennial legume.
(ii)It has a deep root-system with tap roots and lateral roots.
(iii)It Leaves are dark green and trifoliate
(iv)Leaflets are ovate, 4 cm long x 3.5 cm broad.
(v)It Flowers are borne in axillary racemes, are bright or pale lilac with violet stripes.
(3d)
(i)It is used for traditional animal feed,
(ii)It is used for pest management
(iii)It is used for improving soil fertility
(iv)It is used for protecting arid land from soil.
(4a)
(i)Marketing board
(ii)Producer
(iii)Wholesaler
(iv)Retailer
(4b)
The process is known as Pasteurization. It involves heating raw milk to a high temperature and then immediately cooling. It should r noted that the heating is just for 15seconds and the temperature is 72°C
(4c)
(i)calcium and protein
(ii)potassium and phosphorus
(iii)vitamins B2 and B12.
(4d)
(i) It reduces the production of M in livestocks
(ii) It affect the quantity of M produced
(iii) It makes the animal to become weak
(iv) It also affect the quality of M produced
(v) It affect the nutrient level of M produced
(6ai)
(i) Individual method
(ii) Group method
(iii) Mass media
(6aii)
Individual method
(6aiii)
(i) It gives the poultry farmers proper understanding of the disease.
(ii) It will enhance practising
(6aiv)
(i) Inability to reach many poultry farmers
(ii) It is a time consuming method
(iii) It may be very expensive
(6b)
(i) Inadequate farm input
(ii) Inadequate fund
(iii) Inadequate skilled labour
(iv) Problem of distribution
(v) Inadequate farm machines
(6c)
(i) Red Sokoto
(ii) West African dwarf
(iii) Sahel
(iv) Nigerian dwarf goat
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(1ai)
(i) Granting farmers loan
(ii) Establishment of agencies like Nigeria Agriculture and Co-operative Bank(N.A.C.B)
(1aii)
(i) Establishment of adult education for farmers
(ii) Sensitizing farmers on importance of being educated
(1aiii)
(i)Employment of extension officer to sensitize farmers
(ii) Funding of extension programmes
(1aiv)
(i)Government should make policies that will favour farmers and discourage foreign counterparts
(ii) Government should create a good marketing channels for distribution of farm produce.
(1b)
TABULATE
= Disc plough
(i) does not have numerous small disc
(ii) has no scrappers
(iii) no drawbar
= Disc Harrow
(i) consist of numerous small disc
(ii) has scrappers
(iii) has drawbar
(1c)
(i) It destroy soil structure
(ii) It may results in erosion
(iii) It causes compaction due to its heavy weight
(iv) It affect the fertility of the soil
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(3ai)
Selective exploration is the process of cutting or harvesting only mature trees in a forest.
it is a way of concentrating certain selected species of timber in a forest reserve. The system allows for the harvesting of older trees while the younger ones remain as cover to the surface of the forest.
(3aii)
(i) It ensures the concentration of selected species of timber in a forest.
(ii) It protects the soil from erosion.
(iii) It ensures the continuous supply of timber.
(iv) It serves as a revenue base for the government.
(3b)
Field pest of crops can be described as an organism, whether plants or animals which causes economic damage to crop plants, livestock etc. WHILE storage pest of crops are insect or other animals that damage or destroys stored foods or other stored valuable organic matters.
(3ci)
(i) beetle
(ii) moths
(iii) rodents
(3cii)
(i) locusts
(ii) cater pillar insect
(iii) grasshopper
(3d)
(i)Mulch planting beds with newspaper, leaves, bark, or wood chips. Mulches retain soil moisture and improve soil quality.
(ii)Water your plantings with a soaker hose or a drip irrigation system.
(iii)Use a timing device with any watering system.
(iv)Use “wasted” water for your plants.
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(5a)
TABULATE
Feed intake(g)|
|252
|500
|223.2
|840
|526
|719.2
|1276
|1026
Weight gain(g)
|42
|100
|36
|51.2
|26.3
|124
|58
|452
FCR
|6
|5
|6.2
|16.4
|20
|58
|22
|2.3
(5b)
(i) F – 22
(ii) H – 2.3
(5c)
(i) Milk
(ii) Hides and skin
(iii) Meat
(iv) Egg
(v) Blood
(5d)
(i) Hydration
(ii) Carbonation
(iii) Hydrolysis
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(4ai)
PRUNING OF COCOA TREES:
(i) It optimizes the balance of vegetative and reproductive growth
(ii) It increases the efficacy of fertilization and pest control
(iii) It helps in prevention and treatment of disease.
(iv) It reduces risk of failure from dead or weak branches
(4aii)
PARBOILING OF PADDY RICE:
(i) To increase the total and head yield of the paddy
(ii) To prevent the loss of nutrients during milling
(iii) To salvage wet or damaged paddy
(iv) To prepare the rice according to the requirements of consumers
(4b)
(i) By use of chemicals such as herbicides
(ii) By weeding
(iii) By cultural practices
(iv) By use of good tillage operation
(vi) Use of resistance varieties
(4c)
(i) They are used to enhance the beauty of a garden or home.
(ii) They are grown for food. Some chilies are grown as ornamental plants. An example is capsicums.
(iii) Some ornamentals can be used for medicinal purposes.Example of ornamental herbs are rosemary, mexican marigold and lemon grass.
(iv) They absorb carbon dioxide from the air and output oxygen thereby creating cleaner air.
(v) Fallen leaves of ornamental plants makes good mulch and compost.
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(2a)
(i) TIME
(i) It determines whether or not the soil is well developed
(ii) It takes shorter time in the formation of immature soil
(iii) It also takes a long time for plant to decay and become part of the soil
(ii) RAINFALL
(i) It provides water for hydrolysis
(ii) It helps to break down some parent rocks to form soil
(iii) It enhances vegetative growth of plants whose roots cause further breakdown
(iii) PARENT MATERIAL
(i) They constitute major materials from which soil is formed
(ii) It determines the chemical composition of the soil formed
(iii) It’s hardness affects the rate of soil formation
(2b)
(i) Non-uniform of crops
(ii) Most exhaustive crops should be followed by less exhaustive e
(iii) Deep rooted crops should be succeeded by shallow rooted crops
(iv) Leguminous crops should be grown after non-leguminous crops
(2c)
(i) It serves as cover crops
(ii) It serves as food for livestock
(iii) It is used as green manure
(iv) It helps to prevent erosion
(v) It is used for roofing farmstead
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Waec Agricultural Science Practical Answers 2023 for 26th May 2023