CSEC Agricultural Science · May/June 2011 · Paper 2

30 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)2 marksState TWO factors of production that she must consider.
2. 1(b)2 marksMrs James completes a loan application form but is unsuccessful in getting the loan. Suggest TWO criteria required to obtain a loan.
3. 2(a)2 marksName TWO other constraints affecting agriculture in the Caribbean.
4. 2(b)2 marksProvide TWO arguments to convince your fellow students to become involved in agriculture.
5. 3(a)2 marksBriefly explain how crop rotation reduces pests and diseases.
6. 3(b)2 marksA farmer wants to grow corn, sweet potato, beans and lettuce. Complete the crop rotation sequence starting with (1) Corn by filling in positions (2), (3), and (4).
7. 4(a)1 markName the part of the plant that is used for propagating yam.
8. 4(b)1 markThe plot of yam becomes heavily infested with weeds. State ONE effect this is likely to have on the production of yam.
9. 4(c)1 markDescribe the relationship between soil compaction and tuber yield, shown in Table 1.
10. 4(d)1 markA farmer attempts to till a compacted soil with a garden fork but is unsuccessful. Recommend ONE tillage implement that can be used to break up the compacted layer.
11. 5(a)2 marksState TWO breeding methods used in rabbit production.
12. 5(b)2 marksTo improve production of the next generation, the farmer selects rabbits showing high growth rates. Suggest TWO other qualities or traits he may select.
13. 6(a)2 marksIdentify the structures labelled X in Figure 1 and Y in Figure 2.
14. 6(b)(i)1 markA farmer digs a shallow pond on a clayey soil to rear tilapia, but after filling it, the water drains out almost completely. Suggest the most likely cause of this problem.
15. 6(b)(ii)1 markRecommend ONE solution to the water draining problem in the tilapia pond.
16. 7(a)3 marksComplete the doe breeding record in Table 2 by inserting the headings 'Date doe kindled', 'Date mated', and 'Date weaned' in the correct order.
17. 7(b)(i)3 marksUsing the information in Table 3, list the variable costs and the fixed costs.
18. 7(b)(ii)4 marksCalculate the gross income and the net income, showing all working.
19. 7(b)(iii)2 marksState whether or not the farmer's business is successful. Explain your answer.
20. 8(a)(i)2 marksState TWO effects that the overuse of fertilisers may have on the environment.
21. 8(a)(ii)1 markState ONE benefit of mulching.
22. 8(b)9 marksCompare the cultivating practices (similarities and differences) of a leafy vegetable crop and a root crop grown on flat land under the headings: (i) Land preparation, (ii) Fertiliser application, and (iii) Harvesting…
23. 9(a)(i)1 markName a meat breed for pig.
24. 9(a)(ii)1 markName a meat breed for goat.
25. 9(a)(iii)1 markName a meat breed for rabbit.
26. 9(b)(i)1 markOn which of the diets, forage or concentrate, did the rabbits gain MORE weight?
27. 9(b)(ii)1 markCalculate the increase in average weight of the rabbits on the concentrate diet, from week 1 to week 4.
28. 9(b)(iii)2 marksAt the end of four weeks, an average of 4.2 kg of feed was consumed by each rabbit. Calculate the Feed Conversion Ratio (FCR) on the concentrate diet, using the data in Table 4.
29. 9(b)(iv)2 marksExplain the importance of Feed Conversion Ratio in livestock production.
30. 9(c)3 marksOne rabbit in the experiment showed frequent head shaking, scabs in its ear, and a foul-smelling substance oozing from the ear. Suggest the likely cause of this condition and state TWO methods for controlling it.