WAEC Agriculture 2020 confirmed ANSWERS
Like i always warn, cross check all questions and answers before writing, GOOD LUCK
3b) Surface irrigation is where water is applied and distributed over the soil surface by gravity. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.
I) *Soil texture* is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
ii)*Soil structure* describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
1c.
✍️To increase durability.
✍️To increase efficiency.
✍️Reduce costs of replacement.
✍️For safety of the user/avoid accidents.
✍️Avoid damage to the tool.
1b.) I *precautions of animal power*
I. Do not overwork draught animals.
II. Keep them in a healthy. environment.
III. Feed and provide them with adequate water.
1c)
To increase durability.
To increase efficiency.
Reduce costs of replacement.
For safety of the user/avoid accidents.
Avoid damage to the tool.
(2a)
(i) SOIL TEXTURE is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
(ii) SOIL STRUCTURE describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
Typing…..
*WE ARE EXOTIC*
*2bii*
a Ash.
b Beech.
C Birches, many weeping and some other varieties.
d Camellia.
*CHOOSE ANY TWO*
1b.) I *precautions of animal power*
I. Do not overwork draught animals.
II. Keep them in a healthy. environment.
III. Feed and provide them with adequate water.
(1b)
(i) Do not overwork draught animals.
(ii) Keep them in a healthy. environment.
(iii) Feed and provide them with adequate water.
(1c)
(i) To increase durability.
(ii) To increase efficiency.
(iii) Reduce costs of replacement.
(iv) For safety of the user/avoid accidents.
(v) Avoid damage to the tool.
*2aii*
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
2a)
I) *Soil texture* is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
*3b* )
Surface irrigation is where water is applied and distributed over the soil surface by gravity. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.
*3bii)*
Surface drainage refers to the removal of surfacewater by development of the slope of the land utilizing systems of drains to carry away the surplus water. In subsurface drainage open ditches and tile fields intercept groundwater and carry it off.
*2ai)*
The ability of soil to hold moisture, and the amount of moisture it can hold, will greatly affect the irrigation schedule. Soil is made up of sand, silt and clay particles. The percentage of each of these three particles is what determines the actual soil texture.
*2aii*
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
2a)
I) *Soil texture* is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
*3b* )
Surface irrigation is where water is applied and distributed over the soil surface by gravity. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.
*3bii)*
Surface drainage refers to the removal of surfacewater by development of the slope of the land utilizing systems of drains to carry away the surplus water. In subsurface drainage open ditches and tile fields intercept groundwater and carry it off.
(2ai)
Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture.
(2aii)
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them.
(2aiii)
soil profile is a vertical section of soil like the diagram above. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons
(2bi)
(i)Grafting is the fastest way of growing popular, desirable varieties of fruiting trees & flowering shrubs on a large scale. (ii)Buy fruiting tree seeds online. Many commercially valuable plants are difficult to grow by other propagation methods like cutting & layering, but they respond well to grafting.
(iii)Scions are highly precious varieties, but the usually have poor rooting system, less vigor & weak defence against pathogens.
(2bii)
(i)Mango
(ii)Guava
(2c)
(i)water
(ii)crop selection
(iii)temperature
(2d)
*2aii*
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
2a)
I) *Soil texture* is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
*3b* )
Surface irrigation is where water is applied and distributed over the soil surface by gravity. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.
*3bii)*
Surface drainage refers to the removal of surfacewater by development of the slope of the land utilizing systems of drains to carry away the surplus water. In subsurface drainage open ditches and tile fields intercept groundwater and carry it off.
*2ai)*
The ability of soil to hold moisture, and the amount of moisture it can hold, will greatly affect the irrigation schedule. Soil is made up of sand, silt and clay particles. The percentage of each of these three particles is what determines the actual soil texture.
*2aii*
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them.
2a)
I) *Soil texture* is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method.
*3b* )
Surface irrigation is where water is applied and distributed over the soil surface by gravity. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.
*3bii)*
Surface drainage refers to the removal of surfacewater by development of the slope of the land utilizing systems of drains to carry away the surplus water. In subsurface drainage open ditches and tile fields intercept groundwater and carry it off.
(1b)
(i) Do not overwork draught animals.
(ii) Keep them in a healthy. environment.
(iii) Feed and provide them with adequate water.
(1c)
(i) To increase durability.
(ii) To increase efficiency.
(iii) Reduce costs of replacement.
(iv) For safety of the user/avoid accidents.
(v) Avoid damage to the tool.
=========================
(2ai)
Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture.
(2aii)
Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them.
(2aiii)
soil profile is a vertical section of soil like the diagram above. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons
(2bi)
(i)Grafting is the fastest way of growing popular, desirable varieties of fruiting trees & flowering shrubs on a large scale. (ii)Buy fruiting tree seeds online. Many commercially valuable plants are difficult to grow by other propagation methods like cutting & layering, but they respond well to grafting.
(iii)Scions are highly precious varieties, but the usually have poor rooting system, less vigor & weak defence against pathogens.
(2bii)
(i)Mango
(ii)Guava
(2c)
(i)water
(ii)crop selection
(iii)temperature
(2d)
[8/19, 2:12 PM] +234 704 078 5921: (1ai) Poor transportation:
(i) Construction of quality roads
(ii) Ensuring that farm machineries used in conveying agricultural produce are in proper working conditions
(1aii)
(i) Government should encourage reafforestation
(ii) Prohibition of bush burning
(1aiii)
(i) Provision of farm machineries
(ii) Ecouragement of agricultural mechanisation training for farmers
(1bi) Animal power:
(i) Proper feeding of the animals
(ii) Do not over labour the farm animals
(iii) Proper treatment of farm animal when necessary
(1bii) Electrical power
(i) Ensure adequate supply of light
(ii) Proper checking of all electrical appliances in the farm
(iii) The operator must be an expert
(1c)
(i) To increase durability
(ii) To increase efficiency
(iii) Reduce costs of replacement.
(iv) For safety of the user/avoid accidents.
(v) Avoid damage to the tool
(vi) To save energy
(2ai)
Soil texture refers to the proportion of sand, silt and clay sized particles that make up the mineral fraction of the soil.
(2aii)
Soil structure refers to the grouping of soil particles (sand, silt, clay, organic matter, and fertilizers) into porous compounds.
(2aiii)
Soil profile is a vertical cross-section of the soil, made of layers running parallel to the surface. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons
(2bi)
(i) It is used to rapidly increase the number of desirable cultivars
(ii) It is used to change plant form
(iii) I Used to repair damaged plant parts
(2bii)
(i) Mango
(ii) Guava
(2c)
(i) Mulching
(ii) Application of farmyard manure
(iii) Bush fallowing
(2d)
(i) Storage in airtight bins helps maintaining insect free grains.
(ii) Before storing grains the go downs (store houses) should be disinfected. Following methods of disinfestations of store rooms are recommended
(iii) Threshing yard should be situated more than a mile away from the granaries so as to reduce the chance of pest reaching to granaries through migration.
(iv) For bag storage of grains, “pucca” cement concrete or brick made store houses are recommended.
(5a)
In a tabular form
DISEASES:
Brucellosis:
(i) Bacteria
(ii) Cattle, sheep, goat
(iii) Fever, loss of appetite
(iv) Proper vaccination
Aspergullosis:
(v) Fungi
(vi) Dog, pig
(vii) Cough, fever
(viii) Proper vaccination or isolation of affected animals
(5b)
(i) It helps to improve hygiene of the chickens
(ii) It also helps to reduce incidence of friction.
(iii) It helps to reduce excess exercises thereby leading to a better production.
(iv) It leads to lost cost.
(v) It does not require the problem of letters.
(5c)
(i) It leads to higher incidence of foot lesions.
(ii) It leads to high incidence of metabolic disorder.
(iii) Lack of dust bathing opportunities.
(iv) Lack of behavioural opportunities.
(v) It may lead to high risk of diseases.
5b.
i. Unproductive birds are easily identified and promptly culled
ii. Egg production is higher and of better quality
iii. Record-keeping for improvement is easy
iv. It provides better accommodation
6bii)
1. Agricultural bank
2. Money Lenders
3. Self Finance
4. Commercial Banks
5. Cooperative Society
6. Microfinance bank
7. International Development Agencies (IDAs)
OBJ IS COMING
