CSEC Agricultural Science · May/June 2013 · Paper 2

28 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 that may affect food security in the Caribbean.
2. 1(b)2 marksSuggest TWO good agricultural practices that farmers should follow to supply eggs to the hotel.
3. 2(a)2 marksState TWO possible ways to overcome this problem.
4. 2(b)2 marksDescribe the effect of fertilizer on yield of corn, during Stages I and II of the production cycle.
5. 3(a)2 marksIdentify the layers labelled A and B.
6. 3(b)2 marksWhich of the two soils, X or Y, is likely to be more fertile? Give ONE reason for your answer.
7. 4(a)2 marksState TWO pieces of protective clothing to be worn when using a knapsack sprayer.
8. 4(b)(i)1 markFarmer Joe observes wilting throughout his field of sweet peppers. In which month is this MOST likely to occur?
9. 4(b)(ii)1 markSuggest ONE way in which wilting affects the yield of the crop.
10. 5(a)1 markIdentify the technique shown in Figure 4.
11. 5(b)1 markDescribe this technique.
12. 5(c)2 marksSuggest TWO reasons why this technique is highly recommended.
13. 6(a)2 marksWhat is meant by the term 'balanced ration'?
14. 6(b)2 marksSuggest which crude protein level is MOST likely present in a starter ration. Give ONE reason for your answer.
15. 7(a)3 marksState THREE subsidies or incentives that the government could provide to farmers to encourage the expansion of cassava production.
16. 7(b)(i)1 markWhat type of budget should Mary do for the change in her plans, that is, to buy a tractor instead of hiring a tractor?
17. 7(b)(ii)3 marksIdentify TWO fixed costs and TWO variable costs in Table 1.
18. 7(b)(iii)1 markCalculate the annual depreciation on the tractor, using the following formula: (Cost of tractor - net disposable value of tractor) / 5 = Depreciation
19. 7(b)(iv)2 marksMary also decides that she will rent her tractor at a cost of…
20. 7(b)(v)2 marksCalculate net change in profit or loss, using the following formula: Net change in profit/loss = Additional Income calculated in (iv) - Additional Costs (shown in Table 1)
21. 8(a)(i)2 marksExplain the concept of IPM.
22. 8(a)(ii)1 markState ONE advantage of IPM.
23. 8(b)(i)6 marksSuggest THREE different IPM measures (other than chemical) which Mr Singh could use to control the weeds and for EACH measure, explain how it will lead to a reduction in weed infestation.
24. 8(b)(ii)3 marksSuggest a cropping system, other than monocropping, that will lead to a reduction in weed infestation in Mr Singh's cabbage plot and briefly explain how it will lead to a reduction in weed growth.
25. 9(a)3 marksFarmer Stacy is a successful bee farmer. Briefly state THREE daily or weekly practices that Farmer Stacy must carry out at her apiary.
26. 9(b)(i)3 marksCompare hand-sexed males and hormone-treated males with respect to Growth and FCR.
27. 9(b)(ii)3 marksAfter successive grow-out periods of using male and female tilapia species, the farmer noticed that the fish at harvest was stunted in growth. Suggest THREE reasons for the poor growth of the tilapia.
28. 9(c)3 marksSuggest THREE possible ways that the farmers themselves and government agencies can assist in the marketing of tilapia.