QUESTIONS
SECTION A (30 marks)
Answer all the questions in this section in the spaces provided.
- State four human factors that influence agriculture. (2 marks)
- Name four methods of harvesting agroforestry trees. (2 marks)
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- Differentiate between reafforestation and afforestation. (1 mark)
- Name four cover crops farmers can use for soil and water conservation. (2 marks)
- Name four types of water pumps. (2 marks)
- State four factors considered when selecting planting materials for forage crops. (2 marks)
- Which branch of agriculture deals with:
- utilisation of scarce resources? (1 mark)
- maintenance of farm tools and equipment? (1 mark)
- Give four factors that a farmer should consider in order to prepare good quality chicken manure. (2 marks)
- Give four reasons for keeping labour utilisation records. (2 mark)
- State four types of land reforms practised in Kenya. (2 marks)
- Give one use of each of the two types of inventory records kept by farmers. (2 marks)
Type of inventory record Use - State four characteristics of nitrogenous fertilisers. (2marks)
- Give four reasons why Kenyans should practise agroforestry. (2 marks)
- Distinguish between a dam and a weir. (1 mark)
- Name four types of grasses grown in high altitude areas as forage. (2 marks)
- Give four reasons for preparing a seedbed in crop production. (2 marks)
SECTION B (20 marks)
Answer all the questions in this section in the spaces provided.
- If a tomato crop is planted at a spacing of 100 cm by 50 cm, calculate the plant population for plot of land measuring 5 m by 6m. (5 mark)
- The diagram below shows a method of grafting.
- Identify the method of grafting. (1 mark)
- Name two other methods of grafting apart from the one illustrated. (2 mark)
- Give two reasons why a farmer may prefer using the grafting method illustrated. (2 mark)
- The diagram below shows a maize cob infected by a certain disease.
- Identify the disease. (1 mark)
- State two control measures for the disease. (2 marks)
- Name any other two diseases of maize in the field. (2 marks)
- The diagram below shows a crop rotation programme practised on a virgin land for three
Arrows show how crops were rotated after the first season.- Give one reason why:
- maize was planted first in plot A (1 mark)
- Irish potato was rotated with cabbage after the first season (1 mark)
- Name two crops that can be planted in the place of Irish potatoes in the rotation programme. (2 marks)
- Give a reason why it is important to include a grass lay in the rotation programme. (1 mark)
- Give one reason why:
SECTION C (40 marks)
Answer any two questions from this section in the spaces provided after question 22.
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- Describe cabbage production under each of the following sub-headings:
- varieties (2 marks)
- nursery establishment (5 marks)
- Give seven agricultural support services available to wheat farmers in Kenya. (7 marks)
- Explain any six cultural methods of weed control. (6 marks)
- Describe cabbage production under each of the following sub-headings:
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- Explain six harmful effects of crop pests. (6 marks)
- State four problems farmers encounter when marketing milk. (4 marks)
- Give four reasons why farmers should prepare a farm budget. (4 marks)
- Describe the harvesting of tea under the following sub-headings:
- harvesting procedure (3 marks)
- precautions taken during harvesting (3 marks)
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- Describe five ways in which each of the following affects agriculture:
- HIV and AIDS (5 marks)
- poor economic growth (5 marks)
- Give five roles of calcium in the growing of tomatoes. (5 marks)
- State five details farmers should include in a purchase order. (5 marks)
- Describe five ways in which each of the following affects agriculture:
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