AGRICULTURE PAPER 1 - KCSE 2019 MOKASA PRE MOCK EXAMINATION

SECTION A (30marks).
Answer all Questions in this section.

1. State two advantages of organic farming. (2mks)
2. Name two ways through which government policies influence agriculture positively. (2mks)
3. State two ways through which living organisms influence soil formation. (2mks)
4. State two reasons of rolling in millet production. (2mks)
5. List two advantages of using certified seeds in crop propagation. (2mks)
6. State three importance of drainage in production of crops. (3mks)
7. State two advantages of green manure.                         (2mks)
8. State three concepts of agricultural economics. (3mks)
9. Given that a maize plantation measures 40m x 30m, and the maize plants are planted at a spacing of 75m x 25 cm. Calculate the plant population in the piece of land. (2mks)

10. State two precautions observed when harvesting pyrethrum. (2mks)
11. State two causes of river-bank erosion. (2mks)
12. State two advantages of biological weed control methods. (2mks)
13. List two advantages of individual land ownership tenure. (2mks)
14. State two advantages of land consolidation. (2mks)

SECTION B (20 MARKS)
Answer all questions in B.

15. Study the diagram below and answer the questions that follow.
    
    
    1. Identify the crop pest shown above. (1mk)
    2. State two methods used to control the pest above. (2mks)
    3. Name three effects of the pest on tomato production. (3mks)
16. study the diagrams and answer the questions below
    
    
    1. Identify the diagrams above. (2mks)
    2. Name a crop that can be propagated using the method shown in A above.   (1mk)
    3. State two factors that would make a farmer choose method B for propagating crops instead of method A.     (2mks)
    4. State the reason why the part labelled X in A above should be cut in a slanting manner. (1mk)
    5. State one reason why the following practices should be done to the vegetative material labeled A.
       1. When planting leaves should not touch the soil.   (1mk)
       2. The materials should be placed in water until when they are planted. (1mk)
17. Study the diagrams and answer the questions that follow. 
            
    1. Identify the weeds labeled A, B and C above. (3mks)
    2. Name one reason that makes it hard to control each of the weeds named above. (3mks)

SECTION C (40 marks)
Answer only two questions in this section

18.  
    1. Explain six cultural methods used to control weeds in a farm. (12mks)
    2. Explain four factors to consider when selecting planting materials. (8mks)

19.  
    1. Explain five factors that influence soil erosion on an area.                                     (10mks)
    2. Describe five cultural methods a farmer can use to control crop pests. (10mks)

20.  
    1. Explain four methods that determine the number of times secondary cultivation should be done on a piece of land.            (8mks)
    2. Explain six reasons that would make a farmer carry out drainage on a piece of land. (12mks)