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Question 2
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QUESTION 2
- (i) Identify specimensJ and K. [2 marks]
- (ii) State three functions of specimen J in a fish pond. [3 marks]
(iii) Mention four differences between specimens J and K. [8 marks]
- Give two methods of applying specimens J and K in a fish pond. [2 marks]
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This question was poorly attempted by the candidates. In 2(a)(i), most of the candidates were able to identify specimens J (Cow dung) and K (Urea). However, in 2(a)(ii-iii), most of the candidates could neither state the functions of specimen J (Cow dung) in a fish pond nor mention the differences between specimens J (Cow dung) and K (Urea). Also, majority of the candidates could not give the methods of applying specimens J (Cow dung) and K (Urea) in a fish pond as required in 2b.
The expected answers include:
2(a)(ii) Functions of Specimen J (Cow dung) in a fish pond
- Fertilize the pond/provides essential nutrients
- It improves the condition of the pond
- Increases fish production without risk of dietary diseases
- Stimulates growth of natural fish food organism/plankton
(iii) Differences between Specimens J (Cow dung) and K (Urea)
  J (Cow dung) K (Urea)
- Fertilizer of animal/natural/organic origin Synthesized/man made
fertilizer/artificial/inorganic
- Large quantity required to fertilize a pond Small quantity required to fertilize
a pond
- Smelly and application can be messy Easy to apply
- Locally produced or gotten from the Industrially produced
waste of cattle
- Very slow in terms of reaction time in Fast in terms of reaction time in the
the pond pond
- Cheap to procure/economical Expensive to procure
- More mineral nutrients Nutrient availability is specific
(b) Methods of applying Specimen J (Cow dung) and K (Urea) in a fish pond
- Broadcasting/spraying
- Sac method/spot |
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