AGRICULTURE
FORM 1
END OF TERM 3 2022
MARKING SCHEME
1.Give four importance of land preparation in crop production (4mks)
To kill weeds
To incorporate manure and other organic matter into the soil
To aerate the soil
To encourage the penetration of roots in the soil
To encourage water infiltration into the soil
2.List four factors that determines the type of irrigation used in crop production (4mks)
Capital availability
Topography of the land
Water availability
Type of soil
Types of soil to be irrigated
3.Give five characteristics of fertile soil (5mks)
Good depth
Proper drainage
Good water holding capacity
Adequate nutrients supply
Correct soil PH
4. Mention five importance of drainage as a land reclamation method (5mks)
To increase soil aeration
To increase soil volume
Ta raise soil temperature
To reduce soil erosion
To remove toxic substances
5.List four types of livestock farming practices (4mks)
Pastrolism
Fish farming
Bee keeping (apiculture)
Poutry keeping
6.list the three types of a spanner and give the maintenance of the spanners (5mks)
Ring spanner, open –ended spanner and adjustable spanner
ii)mainteinance-applying oil on the metallic parts to prevent rusting
7.Define the term minimum tillage and give five minimum tillage practices (6mks)
Minimum tillage is the application of a combination of farming practices aimed at least disturbance of soil
ii)Application of herbicides in controlling weeds
Use of mulch on the soil surface
Timing cultivation
Establishing a cover crop on the field
Uprooting or slashing weeds in perennial crop
8.List four factors that influence soil formation (4mks)
Time
Parent rock materials
Topography
Climate
9.Give four importance of treating water (4mks)
To kill diseases causing micro – organism ie cholera
To remove chemical impurities such as excess fluoride
To remove smell and bad taste
The remove sediments of solid particles such as soil
10.What are some of the agricultural practices that pollute water?(3mks)
Uses of inorganic fertilizers
Use of pesticides
Poor cultivation practices ie over cultivation
11.Differentiate between a garden trowel and a masons trowel (2mks)
A garden trowel is a grden tool used for lifting seedlings from the nurserywhile a masons trowel is a masonry tool used to place mortal between construction stones and bricks
12.State two effects of HIV/AIDS on agriculture (2mks)
Shortage of farm labour
Lowers food supply
Low income
13.Give the uses and maintenance of the following tools
a)Wheel barrow (2mks)
wheel barrow is used in transportation of heavy loads ie the manure
mainteinance-the moving parts should be lubricated
b)Spoke shave (2mks)
spoke shave used to smoothens the wood surfaces
the loose nuts and bolts should be tighened
c)milking churn (2mks)
used to holding milk and milk transportation
maintainenance – thorough cleaning and sterilized after every use
14.State the reasons for proper care and maintenance of farm tools and equipments (4mks)
To increase durability of tools
To reduce the replacement cost
To increase efficiency of tools
To avoid injury to the user
To avoid damage to the tools
15.Give the 3 fields of horticultural farming and describe what they entail(3mks)
Floriculture- involves growing of flowers
Olericulture – growing of vegetables ie cabbage
Pomology –growing of fruits ie mangoes
16. The diagram below shows some workshop tools. Study them and answer the questions that follow
(a) Identify the tools A and B (2mks)
Apipe wrench
B ring spanner
(b) State the correct use of the tool labeled A (2mks)
For holding tightening and loosening metallic pipes
(c) Explain one maintenance practice carried out on the tool A(1mk)
The tool should be cleaned after use
17. State four catergories of farm tools and equipment(4mks
- Workshop tools and equipment
- Gardening /Garden tools and equipment
- Livestock production tools
- Plumbing tools and equipment
- Masonry tools and equipment