KCSE Past Papers 2014 Agriculture Paper 1 (443/1)

1.(i)Products are free from chemical residues;

(ii) It is environmentally friendly;

(iii) Livestock and farmer do not risk effects of poisonous chemicals;

(iv) Ozone layer is preserved;

(v) It uses locally available materials/cheap;

(vi) It maintains soil structure;

(vii) Promotes microbial activities in the soil.

(2 marks)4x ½

2. (i) Seed impurity;

(ii) Low germination percentage;

(iii) Close spacing;

(iv) More seeds per hole / broadcasting;

(v) Early planting / dry planting;

(2 marks)

3. (i) It improves soil capillarity;

(ii) It improves soil water holding capacity;

(iii) It binds soil particles/improves soil structure;

(iv) It improves soil microbial activities;

(v) Modifies soil temperature;

(vi) It provides nutrients on decomposition;

(vii) It buffers soil pH.

(2 marks)4x½

4. (i) It conserves soil moisture;

(ii) It maintains soil structure;

(iii)It saves costs on land preparation/saves on time/saves on labour;

(v) It ensures minimum disturbance to plant roots;

(vi) Control soil erosion;

(vii) Reduces soil compaction by tillage implements;

(viii) Prevents loss of nutrients by volatilization.

(2 marks)

5. (a) Is the growing of crops of different families on the same piece of land in an orderly sequence; (1 mark)

(b) Is the covering of the ground around a growing crop With organic matter or artificial sheets; (1 mark)

6. (i) To burry organic matter/weeds into the soil;

(ii) To expose soil to agents of weathering;

(ii) To expose pest/disease agents to predators/strong sun;

(iii) Bring up leached plant nutrients to the surface;

(iv) To encourage Water infiltration/aeration.4 X ½

7. (i) Mulching;

(ii) Cover cropping;

(iii) Crop rotation;

(iv) Timely planting;

(v) Proper spacing;

(v) Flooding;

(vi) Clean seedbed;

8. (a) (i) Crowns;

(ii) Suckers;

(iii) Slips;

3 x ½

(b) (i) Transmits diseases;

(ii) Propagates genetic/varietal defects;

(iii) No uniformity in growth;

(iv) It is laborious/bulky;

(v) Vegetative materials cannot be sored for long.

3 X ½

9. (i)Springs;

(ii)Bore hole;

(iii)Wells;

3 X ½

10. (a) Pollarding - cutting back the crown and the top branches of a tree;

(b) Coppicing - cutting down trees about half a meter from the ground;

(c) Lopping - cutting one or more branches from the stem;

11. (i)Date;

(ii) Quantity of eggs;

(iii) Price;

(iv) Amount/total;

(v) Buyer's name;

(vi) Name of the farm/farmer;

(vii) Signature;

(viii)Serial number;

(iX) Mode of payment (cheque/cash/in kind);

5 x 1/2

12. (a)(i) Stabilize river bank/control river bank erosion;

(ii) Slow down speed of surface runoff;

(iii) Trap soil/debris in surface runoff;

(iv) Reduces risk of flooding;

2 X 1/2

(b) (i) Reduce speed of runoff;

(ii) Trap soil in erosive water;

(iii) Tree roots bind and stabilize the soil/maintains soil structure;

2x1/2

13. (i) Can be gnawed by rodents;

(ii) Become brittle on exposure to strong sun;

(iii) Can burst at high pressure;

14. (i) Irregular watering;

(ii) Lack of calcium;

(iii) Excessive nitrogen application;

3 x ½

15. It is the act of deciding on how to allocate available scarce resources to alleviate uses based on the farmers interests.

SECTION B (20 marks)

16. (a)Straight fertilizer supply only one of the fertilizer element eg N, P or K while compound fertilizers supply two or the three fertilizer elements;(1 mark)

(b)

17. (a) Splash erosion/rain drop erosion;(1 mark)

(b) Soil is detached; by the impact of raindrops;(2 marks)

(c) (i) Reduces impact of raindrops;

(ii) Prevents movement of soil;

(iii) Plant roots bind soil particles;(2 marks)

18. (a) (i)

(ii) B;

(iii) B has a higher per capita income;

(iv) By creating employment/developing industries/increasing production;

19.(a)Black jack (Bidens pilosa);(1 mark)

(b)(i) Uprooting;

(ii) Slashing/mowing;

(iii) Cultivation;(1 mark)

(c)A Contact herbicide;

B Systemic herbicide/translocated;(2 mark)

(d) Has underground propagation structures;(1 mark)

SECTION C

20. (a)~ Technology uncertainty.

' Price uncertainty.

' Personal injury or sickness.

' Government policy.

' Demand for a commodity uncertainty.

' Yield uncertainty.

' Theft of crop.

- Fire risk.

' Political instability.

' Labour uncertainty.

' Natural catastrophes.

' Pests and diseases.

° Obsolescence.(10 marks)

(b)~ Participating in exhibitions and competitions at ASK shows.

' Involvement in agricultural projects at club level.

' Participating in YFC annual rallies.

' Involvement in workshops & seminar related to agriculture.

' Participating in national tree planting activities.

' Participation in exchange programmes.

' Participating in national ploughing contests.(5 marks)

(c)' Registered land can be used to secure credit facilities.

' Registration minimises land disputes.

' Security of tenure encourages long term investment projects/ensures investment on land.

' Enables occupant to lease or sell part of the land.

' Encourages underlying of soil conservation measures.(5 marks)

21. (a) (i)Farmers training eg. in FTCs on improved methods of maize production.

(ii) Provision of extension services to advise farmers on modern maize production techniques eg. irrigation, use of certified, irrigation, pest and disease control to reduce cost of production.

(iii) Provision of subsidies on farm inputs eg. fertilizers.

(iv) Provision of credit facilities eg. through AFC, to finance maize farming operations.

(v) Imposing high taxation on imported wheat and maize products to discourage importation and protect local farmers.

(vi) Quality control to ensure production of high quality maize that can attract foreign markets.

(vii) Supporting research into new and improved varieties of maize for high yields.

(viii) Farm input supplies

(Xi) Provision of marketing services

(iX) Provision of drying and storage facilities

(xi) Provision of tractor - hire service.

(xi) Ensuring effective control of pests/diseases/weeds.

(xii) Ensuring effective soil and water conservation measures.

5 x 2 = (10 marks)

(b) (i)To make the plant take a desired shape.

(ii) To remove diseased parts to prevent disease spread.

(iii) To control cropping to ensure production of high quality fruits.

(iv) To ease penetration of sprays to minimise wastage.

(V) To control pests/diseases by eliminating the micro-climates.

(Vi) To facilitate light penetration and optimise photosynthesis process.

(vii) To remove dead/broken pans.

(viii) To remove old/unproductive parts on which resources are wasted.

(iX) To promote lateral growth e.g in tea

(X) To facilitate management practices e.g weeding and harvesting.

(10 marks)

22. (a)

(b) (i) Seedbed preparation.

' Bush clearing.

' Carryout primary cultivation.

- Carrying out secondary cultivation.

' Prepare land early during the dry season.

' Deep ploughing to remove perenial weeds.

' Harrow to medium tilth.

' Carry out soil and water conservation measures.

4 x 1 = 4 marks

(ii) Planting of maize

' Plant at the onset of rains/dry plant.

' Space according to variety 75 - 90 cm X 20 - 30 cm.

- Plant one or two seeds per hole.

' Planting depth 2.5 - 10 cm depending on the moisture content.

' Plant manually or use planters.

' Use phosphatic fertilizer/organic manure at a ratio of 120 kg/ha.

3 x 1 = 3 marks

(iii) Harvesting maize

' Harvest after 3 - 9 months.

' Harvest When the Whole plant dries/harvest according to market demand.

' Harvest manually by hand or use combine harvesters.

' Cut and stook the maize if harvesting is manual.

' Remove the cobbed maize from the husks.

(3 marks)

4.15.2 Agriculture Paper 2 (443/2)

SECTION A (30 marks)

1 . Wool;

Meat;

2 x ½

2. Place salt on tongue;

Pour cold water on head and chest to activate the nerves;

Clear the mucus from the nostrils;

Hold upside down using hind legs and swing the calf.

Smack the ribs.

2 X ½

3. (a) One that requires two hosts to complete its life cycle.

(b) Red legged tick/Rhipicephalus everts;

Brown tick/Rhipicephalus bursa;

African bont-legged tick/Hyalomma truncatum;

The large bont-legged tick/Hyalomma rufipes;

2 x ½

4. High initial construction cost (high capital);

Dangerous for young and pregnant animals and the sick;

Requires a lot of water;

Poisoning by swallowed dip wash;

4 x ½

5. (a) (i) Cutting PVC pipes;

(ii) Wire strainer - to tighten wires during fencing;

(b) Cross-cut saw;

Spoke shave;

Wood rasp;

Mallet (to drive in wood and for hammering wood);

4 x ½

(c) (i) Canular

(ii) Bit

6. Vaginitis eg. Bovine Trichomoniasis.

Brucellosis (contagious abortion/Bang's disease

Vibriosis

2 x 1/2

7. Acaricide resistance

High Cost of acaricide

Communal rearing practices

Lack of skills and knowledge in control of external parasite. Some are highly mobile/high mobility eg tsetse flies.

3 X ½

8.Long body

Black in colour

Drooping ears

Is hardy;

4 x ½

9.Chick mash;

Growers mash;

Layers mash;

Broiler staner;

Broiler follow-on;

Broiler finisher;

4 x ½

10.Injection

Oral (through the mouth)

Nasal (through nose)

Occular (through the eye)

cloacal

4 x ½

ll.(a) ECF/Theileriosis

Anaplasmosis/Gall stones

Coccidiosis

Trypanosomiasis/Nagana

Red Water/Babesiosis

3 x ½

(b) Fever

Starring coat

Discharges in the mouth and nose

Watery eyes/lacrimation

Diarrhoea and dysentry

Red mucal membranes With ulcers

Tooth grinding

Emaciation

Dullness

Loss of appetite/anorexia

4 x ½

12. Unblocking blocked nozzles

Replacing water in the tank

Tightening loose nuts/bolts

Repairing damaged floor

Sump should be cleaned regularly by removing all the sediments

Broken rails should be replaced

4 x ½

13. (a) Increase production

Protection against diseases

Reproduction

Maintenance

Increase quality of products.

4 x ½

(b) Cleaning feeders

Cleaning waterers

Provide fresh Water

Provide fresh feeds

Provide adequate waterers

Provide adequate feeders

Provide clean water

Provide clean feeds

4 x ½

14. Manage market weight

Determine birth weight

Determine growth rate

Manage feeding

Determine weaning stage

Determine mothering ability

4 x ½

SECTION B (20 marks)

15. (a) Fold/Ark;

(b) Wood;

Plastic;

Thatch;

2 x 1

(c) Labour intensive;

Accommodates few birds;

Results in dirty eggs;

Difficult to keep individual egg production records;

Breakage/damage due to frequent movement;

3 x 1

16. (a) Fascioliasis;

(b) Fasciola hepatica;

(c) Control the secondary host/snail;

Drenching using antihelmintics;

Burning pastures;

Avoid grazing in marshy areas;

2 X 1

(d) Damaged liver/organs;

Presence of the parasite;

Turnels of parasite movements;

2 x 1

17. (a) A New Zealand White/Kenya White;(l mark)

B California White;(l mark)

(b) Watering;(1 mark)

(c) Droppings and urine fall to keep the floor dry;(1 mark)

18. (a) Manganese(1 mark)

(b) (i) Reduced hatchability

(ii) Reduced shell thickness/ soft shelled eggs

(iii) Reduced appetite

(iv) Reduced growth rate

(v) Low production

(vi) Egg eating.

(vii) Loss of feathers(3 marks)

SECTION C (40 marks)

19. (a) Select a high grade pure breed bull; and a Well managed low grade heifer; Mate them to produce a heifer with half of the sire’s genes; Mate the heifer with a sire of the same pure breed as original sire; Subsequent; heifers should be mated with sires of the same pure breed as original sire; up to the sixth cross/generation; to produce a hygrade heifer with over 98% genes of the pure breed high grade bull;

or

(8 marks)

(b) Overcrowded housing;

Fighting/pecking;

Lack of adequate clean water which impairs egg development;

Parasite infestation;

Inadequate feeding;

Old age;

Broodiness;

Inadequate Waterers/feeders;

Inferior feeds;

Egg eating;

Inadequate laying nests;

Presence of predators/strangers;

Sudden change of feeds;

Sudden noise;

Sudden change of weather to cold conditions;

Disease infection;

12 x 1 (12 marks)

20. (a) In the first week, the calf should be fed on colostrum ad libitum;

In the second and third weeks; it is fed on 3.5; and 4.0kg; of whole milk per day respectively;

From the fourth week; whole milk is gradually replaced with a mixture of whole and skim milk.

The milk should be at body temperature;

Calf pellets/pencils should be introduced gradually from the third week;

Green fodder should be gradually introduced from the third week;

milk should be divided initially into three equal parts and finally into two equal parts;

The amount of whole milk fed should be reduced as the calf grows;

Skim milk should be increased as whole milk reduces;

From the 7"‘ week the calf is not fed on whole milk;

Concentrates should be increased as the calf copes with bulky solid feeds;

At the 16"‘ week the calf can be fully introduced to forage crops;

12 x 1 (12 marks)

(b) Liming the pond;

Inlet channel or pipe should be opened so that fresh water fills the pond slowly;

Add manure or fertiliser to encourage growth of planktons;

Fish is introduced after about 2- 4 Weeks when planktons and other water plants have grown;

Fingerlings are obtained from recognised hatcheries; and transported with care in a water medium; using a plastic container at about 10 degrees celcius;

The fingerlings are then introduced to the water during the day when the water temperature is almost the same as that of the container they were transported in;

Lower the container into the pond and let it stay for sometime for acclimatisation;

Allow the fingerlings to swim out of the container;

Stock at an average rate of 5-10 fingerlings for Sm”

Feed the fingerlings;

8 x 1 (8 marks)

24. (a) (i) The engine should be checked daily by use of dip stick and oil level maintained;

The fuel level should be checked at the start of everyday's work and added if necessary;

Water level in the radiator should be inspected and if low topped up;

The level of electrolyte should be checked daily and topped up with distilled water if low;

The nuts and bolts should be tightened every day;

Grease should be applied regularly to the moving parts;

Large sediments from the sediment bowl should be removed;

Tyre pressure should be checked every morning before the day‘s work and adjusted accordingly;

The fan-belt tension should be checked to ensure that it deflects between 1.9 cm - 2.5 cm when pushed;

The brake shaft bearing should be greased and break fluid level maintained;

Lost bolts and nuts are replaced.

10 x 1 (10 marks)

(ii) Moving parts should be oiled/ greased regularly to reduce friction (tear and wear);

The yoke should be properly maintained eg. repair when worn out, replaced if not repairable, properly padded;

Tyre pressure should be checked daily before the start of work;

Broken trailer bodies should be repaired;

Loose nuts and bolts should be tightened;

Paint it if to be stored for long to avoid rusting;

Clean after use;

Store under shed;

Replace lost nuts and bolts;

5 x 1 (5 marks)

(b) By checking the appetite and feeding - if low or excessive it indicates that the goat is sick

Defaecation - inconsistency in texture, colour, smell, frequency and posture, presence of arasite segments, egg, larvae or blood

Urination - irregular posture, colour and and frequency;

Change in temperature above or below the normal range;

Respiratory rate - irregular respiration shown by non-rhythmic inspiration and expiration indicates ill health.

Pulse rate - Abnormal pulse rate under normal physiological status indicates ill- health.

Production level - Loss of weight, emaciation and reduced production rate. Abnormal discharges

Posture - while standing or lying.

Behaviour eg. abnormal sound, aggression, excitement.

Appearance - eg. dullness, restlessness, pot belly, bloated.

Movement eg. gait, eg, standing or limping when walking.

Mucuors membranes (abnormal) eg. bright red colour, yellowish, blueish depending on disease.

Skin/animal coat - (abnormal) starring hair, coat, sores/wounds on skin. 5 x 1 (5 marks)