KCSE Past Papers 2021 Agriculture Paper 1 (443/1)

1. State two ways in which the foreign exchange earned from agriculture is important to Kenya.(1 mark)

2. State four effects of excessive nitrogenous fertiliser application on tomatoes. (2 marks)

4. State four ways in which water pollution caused by farming activities can be controlled.(2 marks)

5. What is meant by the term preference and choice as used in agricultural economics? (2 marks)

6. State four disadvantages of shifting cultivation.(2 marks)

7. Name four categories of nursery beds.(2 marks)

(2 marks)

8. (a) What is meant by the term conveyance of water?(1 marks)

(b) State two ways of conveying water.(2 marks)

9. (a) What is meant by the term land tenure reform?(1 marks)

(b) State four advantages of land registration.(2 marks)

10. Name four types of landslides.(2 marks)

11. State four advantages of small scale farming in Kenya.(2 marks)

12. State four disadvantages of stall feeding.(2 marks)

13. Give four reasons why livestock farmers prepare silage.(2 marks)

14. State four reasons for carrying out minimum tillage.(2 marks)

15. Name four financial documents used in farm accounting.(2 marks)

SECTION B (20 marks) Answer all the questions in this section in the spaces provided.

16. The diagrams below show certain weeds.

(a) Identify the weeds labelled F and G. (l mark)

(b) State one way in which each of the weeds labelled E and F affects the quality of livestock products.

E .................(l mark)

F ....................(l mark)

(c) State the main way in which the weed labelled G interferes with farm operations. (1 mark)(l mark)

17. (a) An agronomist recommends application of l20kg N, 60kg P2O5, and 80kg O after testing a soil sample. Calculate the amount of urea (46%N), single super phosphate (20% P2O5,) and potassium oxide (50% O) that should be applied on the land.(4 marks)

(b) Distinguish between fertiliser ratio and fertiliser grade. (1 mark)

18. A farmer has a piece of land 200 m long and 36 m wide. If the farmer plants beans at a spacing of 30 cm x 15 cm, calculate the plant population on the piece of land. Show your working.(5 marks)

19. The diagram below shows a practice in agroforestry.

(a) Identify the practice.(1 marks)

(b) State the importance of the activity labelled:

I .........(1 marks)

IV...........(1 marks)

(c) Why was the soil separated as shown in the activity labelled H?(1 marks)

(d) State the main precaution Observed when covering the seedling as illustrated in III. (l mark)

SECTION C (40 marks)

Answer any two questions from this section in the spaces provided after question 22.

20. (a) Describe seven ways in which a farm manager can provide incentives to increase the productivity of the farm workers. (7 marks)

(b) Describe Blossom End Rot disease in tomatoes under each of the following sub-headings:

(i) symptoms (1 marks)

(ii) causes (3 marks)

(iii) control measures. (3 marks)

(c) Describe how a farmer should handle a bean crop from the time it is harvested until the dry seed is ready for storage. (6 marks)

21. (a) Give two effects of low temperature on crop growth. (2 marks)

(b) Explain four aspects of rainfall that a farmer should consider when choosing a crop to grow. (8 marks)

(c) Describe five types of layering used by farmers to propagate crops.(5 marks)

(d) Give five functions of agricultural marketing boards in Kenya.(5 marks)

22. (a) Describe rice production under each of the following sub-headings:

(i) land preparation(3 marks)

(ii) water control(3 marks)

(iii) weed control.(2 marks)

(b) Describe millet production under each of the following sub-headings:

(i) seedbed preparation (2 marks)

(ii) planting (2 marks)

(iii) harvesting. (3 marks)

(c) Explain five factors that influence mass wasting. (5 marks)