Agriculture Questions and Answers - Form 2 Term 1 Opener Exams 2021

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  1. Name FOUR main branches of agriculture (2mks)
  2. State FOUR characteristics of nitrogenous fertilizers (2mks)
  3. Differentiate between macro nutrient and micro nutrients (1mk)
  4. Diagram M, N,P and Q represents some farm tools
             Diagram of some farm tools
    1. Identify the tools , M,N,P, and Q (2mks)
    2. Give the uses of the tools named above (2mks)
  5. Given that maize is planted at a spacing of 90 by 30 cm , calculate plant population in a plot of land measuring 4 by 3 m.
  6. State two soil sampling methods (1mk)
  7. Give an example of a crop in which the following vegetative propagation materials are used (4mks)
  8. Name two dairy breed of goat  (1mk)
  9. State four advantages of using seeds as planting materials (4mks)
  10. Describe two chemical processes that are involved in soil formation (2MK)
  11. Differentiate between seed dressing and seed inoculation (2mks)
  12. A student was to apply a compound fertilizer 5:20:10 at the rate of 200 kg per hectare on her Agriculture project plot measuring 3 by 4 meters.
    1. What do the figures 5 and 20 in the compound fertilizer above stand? (1mk)
    2. Calculate the amount of fertilizer she would require for the plot (3mks)


Marking Scheme

  1. Name FOUR main branches of agriculture(2mks)
    • Agricultural engineering
    • Crop production
    • Livestock production
    • Soil science                                                                                                                   
  2. State FOUR characteristics of nitrogenous fertilizers  (2mks)
    • Easily leached
    • Highly soluble in water
    • Have short residual effects
    • Highly volatile
    • Are hygroscopic
    • High corrosive
  3. Differentiate between macro nutrient and micro nutrients     (1mk)
    • Macro nutrients are required by plants in large quantities while micronutrients are required by plants in relatively small quantities.
  4. Diagram M, N,P and Q represents some farm tools
    1. Identify the tools , M,N,P,  and Q    (2mks) 
      • M -Sickle
      • N-Pruning saw
      • P-steel float 
      • Q-Masons trowel
    2. Give the uses of the tools named above (2mks)
      • M- Harvesting grass
      • N- Pruning hard branches of coffee
      • P- To spread screed on floors
      • Q- To scoop mortar during construction
  5. Given that maize is planted at a spacing of 90 by 30 cm , calculate plant population in a plot of land measuring 4 by 3 m.                                                                                                                    PLANT POPULATION=Area of land
                                     Spacing
    Area of the land= 400 cm x 300cm
    Spacing                 90 cm x 30cm
                             = 44 plants                                                                                                        
  6. State two soil sampling methods    (1mk)
    • Zigzag
    • Traverse
  7. Give an example of a crop in which the following vegetative propagation materials are used  (4mks)
    1. Stem tuber – Irish potato
    2. Bulbils -sisal
    3. Stem cutting- cassava sugarcane
    4. Splits -pyrethrum
  8. Name two dairy breed of goat     (1mk)
    • Saanen
    • Toggenburg
  9. State four advantages of using seeds as planting materials     (4mks)
    • Possible to develop new varieties due cross pollination
    • Possible to apply manure and fertilizers together with seeds
    • They are not bulky
    • Fertilizers and manure application can be easily mechanized
    • Easy to handle
  10. Describe two chemical processes that are involved in soil formation    (2mks)
    • Solution- the soluble minerals presents in the rocks are dissolved hence weakening the rock.
    • Hydration- this is process by which certain minerals absorb water and expands causing internal stress and fracturing the rock mass.
  11. Differentiate between seed dressing and seed inoculation      (2mks)
    • Seed dressing, coating of seed with fungicides or an  insecticides to seedlings from soil borne diseases and  pests while seed inoculation is coating of legume with right strain of rhizobium to encourage nodulation, hence  nitrogen fixation.
  12. A student was to apply a compound fertilizer 5:20:10 at the rate of 200 kg per hectare on her Agriculture project plot measuring 3 by 4 meters.  
    1. What do the figures 5 and 20 in the compound fertilizer above stand?  (1mk)
      • 5- Ratio of Nitrogen
      • 20- Ratio of P2O5
    2. Calculate the amount of fertiliser she would require for the plot (3mks)
      1 ha =200kg 
      The plot thus requires;  12×200 = 0.24kg of the compound fertilizer
                                              10000

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