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KNEC KCSE Agriculture Paper 1 Question Paper / 2014 Kakamega County Mock

KNEC KCSE Agriculture Paper 1 Question Paper / 2014 Kakamega County Mock

2014 Kakamega County Mock

Agriculture Paper 1

SECTION A (30 Marks)

Answer all questions in this section.


Give two characteristics of plantation farming.

 1 marks


Name two chemical processes of weathering.

 1 marks


State two advantages of organic farming .

 1 marks


Outline three effects of soil organisms which benefit plant growth.

 1.5 marks


Give two ways in which organic mulch help to conserve water in the soil.

 1 marks


Give two types of labour records.

 1 marks


Outline four ways in which land consolidation helps to improve farm management.

 2 marks


List six factors that should be considered when grading a crop produce.

 3 marks


State four importance of raising tomato seedlings in a nursery bed.

 2 marks


Give four ways of controlling weeds in a field of maize.

 2 marks


State three reasons for top dressing pasture.

 1.5 marks


Give four reasons for training crops as a field practice

 2 marks


State three activities the farmer carries out on a store before storing grains.

 1.5 marks


Give four desirable characteristics of certified seeds.

 2 marks


(a) Outline two characteristics of nitrogenous fertilizers. (1mk)

(b) Give the forms in which the following elements are available to plants: (1mk)
(i) Phosphorous
(ii) Potassium

 2 marks


List three general symptoms of viral diseases in crops.

 1.5 marks


Give four factors that influence the choice of tools and equipment used in Primary

 2 marks


State four factors that contribute to competitive ability of weeds.

 2 marks

SECTION B (20 Marks)

Answer all questions in this section.


(a) Diagram below shows an adult crop pest which in its larval stage causes the middle
shoots of sorghum to wither as shown in the diagram.
(i) Identify the pest. (0.5mks)

(ii) Give two ways of controlling the pest. (2mks)

(b) Diagrams E,Fand G below shows the panicles of three sorghum varieties growing side
by side.

(i) Which one of the threevarieties of sorghum is least likely to be damaged by the
birds. (0.5 mks)

(ii) Give a reason for your answer in (i) above. (1mk)

(iii) State two methods that are used in controlling birds in a field of sorghum.(2mks)

 6 marks


The diagram below shows a method of bringing tea into bearing. Use it to answer the
questions that follow
(i) Identify the specific method shown in the diagram. (0.5 mk)

(ii) Describe the procedure of carrying out the above in a tea bush. (4mks)

 4.5 marks


Use the diagrams below to answer the questions that follow
(a) Identify each of the soil structures labeled K and L (0.5mk)

(b) Give one place where the soil structure labeled L can be found. (1mk)

(c) State three ways in which a farmer can improve the structure of water logged clay
soil. (3mks)

 4.5 marks


The diagram below illustrates a vegetative propagation method. Study it and answer the
questions that follow.

(a) Name the method used in preparing the above planting material. (0.5 mk)

(b) Name the crop propagated using the above method (1mk)

(c) Name the parts labeled X and Y (2mks)
(d) State one environmental condition necessary for the success of the method named in (a)
above. (1mk)

 4.5 marks

SECTION C (40 Marks)

Answer two questions in this section.


(a) Describe the production of Kales under the following sub headings:-
(i) Seedbed preparation (3mks)

(ii) Transplanting

(iii) Field practices (4mks)

(b) Explain eight cultural control measures of diseases in crop production. (8mks)

 20 marks


(a) Below is a graphical representation of the law of diminishing returns. Explain what
happens in each of the zones marked I, II and III in relation to output. (3mks)
Zone marked I__________________________________________________________

Zone marked II________________________________________________________

Zone marked III_______________________________________________________

(b) Which of the three is a rational zone of production? (1mk)

(c) State any six precautions a potato farmer would take to minimize risks in the
production of potatoes. (6mks)

(d) Explain ten factors to consider when selecting a farm enterprise (10mks)

 20 marks


(a)Give six precautions observed in pruning mature tea. (6mks)

(b) Describe the procedure followed when collecting a soil sample from the field for
testing in the laboratory. (6mks)
(c) Give four desirable characteristics of materials used in the preparation of compost
manure. (4mks)
(e) Outline four advantages of intercropping crops. (4mks)

 20 marks

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