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Agriculture · Karatasi 2 · 2007

10 maswali

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Mtihani wa saa 3 wa muda · husahihishwa kiotomatiki · huhesabiwa kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasi

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Maswali (10)

Sehemu A

1. 20 alamas

Briefly explain the concept of mutation breeding and its application in crop improvement.

  1. Briefly explain the concept of mutation breeding and its application in crop improvement. (20 alama)

Boresha ili kuona majibu ya mfano.

2. 20 alamas

State five benefits of progeny testing in crop breeding.

  1. State five benefits of progeny testing in crop breeding. (20 alama)

Boresha ili kuona majibu ya mfano.

3. 20 alamas

Explain the following as used in weed science: (a) Crop rotation (b) Mulching (c) Notorious weed (d) Selective herbicide

  1. Crop rotation (5 alama)
  2. Mulching (5 alama)
  3. Notorious weed (5 alama)
  4. Selective herbicide (5 alama)

Boresha ili kuona majibu ya mfano.

4. 20 alamas

Briefly explain five environmental factors that affect the effectiveness of herbicides.

  1. Briefly explain five environmental factors that affect the effectiveness of herbicides. (20 alama)

Boresha ili kuona majibu ya mfano.

5. 20 alamas

Describe five symptoms of a viral infection in a plant, and explain two ways a viral infection can spread.

  1. Explain two ways a viral infection can spread. (10 alama)

Boresha ili kuona majibu ya mfano.

Sehemu B

6. 20 alamas

Differentiate between carrying capacity and stocking density.

  1. Differentiate between carrying capacity and stocking density. (20 alama)

Boresha ili kuona majibu ya mfano.

7. 20 alamas

Briefly explain the role of the following nutrients in an animal's diet: (a) Vitamin A (b) Calcium (c) Phosphorus (d) Protein

  1. Vitamin A (5 alama)
  2. Calcium (5 alama)
  3. Phosphorus (5 alama)
  4. Protein (5 alama)

Boresha ili kuona majibu ya mfano.

8. 20 alamas

Discuss three common diseases of poultry, stating their causative agents and symptoms.

  1. Discuss three common diseases of poultry, stating their causative agents and symptoms. (20 alama)

Boresha ili kuona majibu ya mfano.

9. 20 alamas

Explain the importance of a good water supply for livestock production and state three factors that affect the water intake of an animal.

  1. State three factors that affect the water intake of an animal. (10 alama)

Boresha ili kuona majibu ya mfano.

10. 20 alamas

State five advantages and five disadvantages of using artificial insemination in livestock breeding.

  1. State five disadvantages of using artificial insemination in livestock breeding. (10 alama)

Boresha ili kuona majibu ya mfano.

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