AGRICULTURE PAPER 1 REVISION KIT FOR FORM 4 MODEL29082023001

443/1 AGRICULTURE PAPER 1 REVISION KIT FOR FORM 4 MODEL29082023001

SECTION A(30MKS)

1.       Contribution to industrial growth.

  • Supply raw materials to industries
  • Provide market to finished industrial goods.
  • Provide capital to set up industries.

(½ x 2 = 1mk)

2.       Characteristics of intensive farming

  • Land is maximally utilized
  • Permanent labour is maximally used.
  • Yields are high per unit area
  • Much capital is used.
  • High quality products
  • High level skill is required.

(½ x 2 = 1mk)

3.       Effects of high levels of education

  • Provides knowledge required in proper methods of production.
  • Provided skills required in carrying out production practices.
  • Leads to positive change in altitude involving practices and consumer preference.

(½ x 2 = 1mk)

 

4.       Ways micro-catchment conserve soil and water

  • Slow down surface run-off encouraging infiltration
  • Hold surface run-off encouraging sedmentation of soils.

(½ x 2 = 1mk)

5.       Reasons for sowing annual crops early

  • Fetch early market/high prices
  • Crop traps all moisture in the season
  • Enjoys nitrogen flush
  • Escape pests and diseases
  • Smoother weeds.

(½ x 2 = 1mk)

6.       Advantages of biological methods of pest control.

  • Products have high demand
  • Method is cheap in the long run.
  • Sustainable
  • Friendly to the environment
  • Products are safe

(½ x 2 = 1mk)

7.       Sources of nutrients to soils.

  • Bacterial fixation
  • Atmospheric fixation
  • Decomposition of organic matter
  • Fertilizer application
  • Pavement rock

(½ x 3 = 1 ½ mks)

8.       Methods of harvesting trees

  • Pruning
  • Lopping
  • Pollarding
  • Coppicing
  • Thinning

 

9.       Ways to minimize grain losses:

  • Dressing seeds against pests
  • Proper drying against rotting
  • Use of proper storage structures
  • Proper cleaning of stores before storage
  • Ensuring proper ventilation against dumping
  • Securing store against theft.

(4 x ½ =2mks)

10.     Sources of agricultural credit.

  • Banks
  • Personal saving
  • Inheritance
  • Grants – N.G.O
  • Well wishers/friends
  • Co-operatives
  • A.F.C
  • Crop Boards
  • Settlements fund trustees.

(4 x ½ =2mks)

11.     Difference between variable costs and fixed costs.

Ø  Variable costs: costs of inputs that vary with level of production and can be foregone if enterprice is discontinued.

Ø  Fixed costs: costs of inputs that do not vary with level of production and cannot be foregone.

 

12.     Effects of adding organic manures.

  • Bind soil improving structure
  • Improve drainage/water holdings capacity
  • Add fertility to sandy soils
  • Impart dark colour thereby influencing soil temperature.
  • Buffers soil pH       

(4 x ½ =2mks)

 

13.     Farming practices to achieve minimum tillage

  • Application of herbicides
  • Mulching
  • Timing cultivation
  • Restricting cultivation to the area where seeds have to be planted.
  • Establishing a cover crop on the field.
  • Uprooting or slashing weeds in perennial crops

(4 x ½ =2mks)

14.     Factors determining depth of planting

  • Soil type
  • Soil moisture
  • Size of seed
  • Time of planting
  • Risk of pests damage
  • Type of germination displayed by the seed.

(4 x ½ =2mks)

15.     Advantages of concession tenure system

  • Create employment opportunities
  • Earn government income through taxes
  • High efficiency due to good management
  • Saves government foreign exchange on importation
  • Enable government to put to use idle land.

(4 x ½ =2mks)

16.     Ways mixed cropping maintains fertility

  • Balance nutrients composition
  • Legumes fix nitrogen
  • Smoothers weeds
  • Control soil erosion.

(3 x ½ =1 ½ mks)

17.     Advantages of planning

  • Decision making
  • Predict future returns
  • Avoid incurring losses
  • Secure loans
  • Periodic analysis
  • A record
  • Pin points efficiency or weakness

(3 x 1= 3mks)

 

18.     Methods to collect soil samples

  • Traverse
  • Zig zag

(1 x 2=2mks)

 

 

SECTION B (20MKS)

 

19.(a) couch grass                                                              (1 x ½ = 1 ½ mks)

 

(b)      Difficult to control

  • Propagates vegetively/it has rhizomes.

(1 x ½ = 1 ½ mks)

 

(c)      Methods of weed classification

  • Leaf morphology
  • Seed type/No of cotyledons
  • Longevity/life cycle.

(2 x ½ = 1 mk)

(d)      Disadvantages of chemical weed control

  • Requires skilled labour
  • Pollutes the environment
  • Its expensive
  • High residue effect.

(1 x 2 = 2mks)

20(a)  Correct sequence

  • K, G, J H (mark as a whole)

(1 x 1=1mk)

(b)      Precautions when harvesting pyrethrum

  • Pick flower
  • Put flowers in open baskets
  • Avoid picking wet flowers
  • Avoid any contamination
  • Do not compact the flowers in the basket
  • Dry the flowers soon after.

(1 x 2=2mks)

 

21(a)  Measurement of vegetable nursery

  • One metre wide by any convenient lengths.

(1 x 1 = 1mk)

(b)      Damages caused by animals on tree seedlings

  • Ringing the bark
  • Browsing/nibbling
  • Trampling

(2 x 1=2mks)

(c)      Advantages of raising seedlings

  • Many seedlings are produced in a small area.
  • It is easier to carry out management practices
  • Enables establishment of tiny seed to become strong seedlings before transplanting
  • To provide optimum conditions for growth.
  • Allows transplanting of seedlings that are strong and healthy
  • Reduce time taken by crop in the field
  • Extra seedlings can be sold to earn income.

(1 x 3=3mks)

22(a)  Profit and loss a/c for Mr. Kamau’s farm

Purchases & expenses

Kshs

Sales of receipts

Kshs

Opening valuation  @ ½

246,000

Debts recovered     @ ½

250,000

Salaries of labour  @ ½

  25,000

Milk sales              @ 1/2

  30,000

Cattle feeds          @ ½

  42,000

Cattle sales         @ ½

278,400

Veterinary costs    @ ½

  12,000

Closing valuation @1/2

125,000

Total

325,000

Total

683,400

Profit

358,400

 

 

 

Profit                                1mk

Correct entry                     ½ each

Title                                  1mk                                            (6mks)

 

(b)      Profit

 

SECTION C (40MKS)

23(a)  Establishment of grass pasture

  • Selecting of planting materials
  • Land preparation
  • Planting materials\seed rates
  • Fertilizer application
  • Weeding
  • Pasture utilization

(6 x 2=12mks)

 

(b)      Advantages of mixed grass-legume

  • Higher nutritive value
  • Improves soil fertility
  • Higher yield per unit area
  • Animals less prone to bloat diseases
  • Guaranteed yield
  • More palatable
  • Maximum soil exploitation

(4 x 2=8mks)

24(a)  Methods of drainage waterlogged soils

  • Uses open ditches
  • Use of underground drain pipes
  • Use of trench drains
  • Use of cambered beds
  • Planting trees with high transpiration rate.

(4 x 1=4mks)

(b)      Uses of H2O

  • Diluting chemicals
  • Watering livestock
  • Irrigation/watering crops
  • Processing farm produce
  • Washing farm tools/equipments
  • Domestic use
  • Rearing fish
  • Mixing concrete/mortar
  • Recreational purposes
  • Cooling/running machines.

(4 x 1=4mks)

(c)      Process of water treatment

          Stage 1:       filtration at intake

                             water pass through sieves

                             sieves trap large solid impurities

          Stage II:       softening of water

                             soda ash added into water

                             softens water

          Stage III:      Coagulation and sedimentation

                             Alum added into the water

         Alum facilitates coagulation and sedimentation of solid impurities

         Tanks left open for aeration/remove bad smell.

          Stage IV:      Filtration

         water is passed through a filtration tank, that removes all solid impurities

          Stage V:       Chlorination

                             Small amounts of chlorine solution is added

                             Chlorine kills pathogens/diseases causing organisms

         

          Stage VI       Storage

                             treated water stores in clean tanks before use/distribution

                                                                                          (6 X 2=12mks)

 

25(a)  Benefits of farm records.

  • Compare the performance
  • Show the history
  • Guide in planning and budgeting
  • Detect losses/theft
  • Assessment of income tax
  • Determine value of the farm
  • Share the profits and losses
  • Settling disputes
  • Show whether is making profit or losses
  • Support insurance claims.
  • Provide labour information

(10 x 1 = 10mks)

(b)      Functions of Agricultural Society of Kenya.

  • Holding competitive shows exhibitions
  • Encourage breeding and importation of pure breeds
  • Encourage and assist in official milk record scheme
  • Organizing the running of young farmers clubs
  • Organizing the national ploughing contest
  • Publishing the Kenya  stud book
  • Publishing a monthly journal i.e The Kenya Farmers
  • Awarding bursaries to local and overseas studies/tours.

(5 x 1=5mks)

(c)      Land preparation and planting of bulb onions

  • Fine tilth
  • Remove all weeds
  • Apply farm yard manure at 40 -50 tonnes per hectare and mixed well
  • Sow directly into main field/started on in a nursery bed.
  • Apply 250kg/ha of D.S.P at planting at rows 30cm apart
  • Direct planting seeds sparingly drilled along the rows then covered lightly
  • Indirect planting are transplanted at 8cm apart, cover the roots with little soil.

(Any 5 x 1 = 5mks)

 

 

 

2014 KCSE 2023 EXAMS AGRICULTURE AGRICULTURE PAPER 1 AGRICULTURE PAPER 1 QUESTIONS ARSENAL BIOLOGY BIOLOGY PAPER 1 BIOLOGY PAPER 2 BIOLOGY PAPER 3 Business BUSINESS STUDIES BUSINESS STUDIES FORM 2 C.R.E PAPER 1 C.R.E PAPER 2 CHEMISTRY CHEMISTRY NOTES Chemistry Paper 1 CHEMISTRY PAPER 2 COMPUTER STUDIES COMPUTER STUDIES FORM 1 COMPUTER STUDIES FORM 2 computer studies form 3 COMPUTER STUDIES FORM 4 Computer Studies Paper 1 COMPUTER STUDIES PAPER 2 CRE CRE FORM 1 CRE FORM 2 CRE FORM 4 CURRICULUM DESIGN ENGLISH ENGLISH EXAMS ENGLISH PAPER 1 ENGLISH PAPER 2 ENGLISH POETRY ENGLISH PREMIER LEAGUE FORM 1 FORM 2 FORM 3 FORM 3 EXAMS FORM 4 FORM 4 EXAMS Form 4 Mocks GEOGRAPHY GEOGRAPHY FORM 1 GEOGRAPHY FORM 2 GEOGRAPHY FORM 3 GEOGRAPHY FORM 4 GEOGRAPHY NOTES GEOGRAPHY PAPER 2 GRADE 7 CURRICULUM DESIGNS HISTORY AND GOVERNMENT HISTORY AND GOVERNMENT PAPER 2 HISTORY PAPER 1 HOME SCIENCE INSHA IRE JESUS KCPE KCPE 2006 KCPE 2007 KCPE 2008 KCPE ANSWERS KCSE KCSE 2013 KCSE 2022 KCSE MATHEMATICS TOPICAL QUESTIONS KISWAHILI KISWAHILI PAPER 2 KISWAHILI PAPER 3 KUCCPS MAPAMBAZUKO YA MACHWEO MATHEMATICS MATHEMATICS FORM 1 mathematics form 2 MATHEMATICS PAPER 1 MATHEMATICS PAPER 2 MOCKS NOTES PDF DOCUMENTS PHYSICS PHYSICS FORM 1 physics paper 1 PHYSICS PAPER 2 play group Questions or Answers REVISION KITS SCHEMES OF WORK SCIENCE SIGNAL EXAMS SOCIAL STUDIES Soil STANDARD 8 STD 8 2022 REVISION PAPERS SWALIJIBU TERM 1 TERM 2 TPAD TUTORIALS WEALTH

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