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Agricultural Science2012

WASSCE · 49 questions · Answers included

49 questions

1

Agricultural production in West Africa can be improved by the following practices except the

2

A limitation to the practice of shifting cultivation in modern day agriculture is

3

Government finances agriculture through the following means except

4

The following are factors that affect agricultural development in West Africa except

5

Termites are useful in agriculture because they

6

A fresh soil sample of mass 180 g had a mass of 120 g after oven-drying. Determine the percentage water content of the soil.

7

The earthworm is important to the farmer because it

8

The soil water that is readily available for absorption by plant roots is called

9

Farmers practice mixed farming because they can

10

Which of the following factors should be considered in selecting cover crops? The cover crops must I. be easy to propagate II. compete with the main crops III. have roots capable of binding soils IV. be slow growing

11

Which of the following terms is not associated with surface irrigation?

12

Loss of nitrogen from the soil through the removal of oxygen from nitrates by bacteria is known as

13

Which of the following statement are advantages of mulching? It I. controls weeds II. conserves soil moisture III. increases soil temperature IV. reduces soil pH

14

Determine the weight of potassium in a 50 kg NPK (20:20:10) bag of fertilizer.

15

The farm power which is most adaptable to farm operation in West Africa is

16

If grains are not properly dried before storage, they are likely to

17

Which of the following combinations of activities gives the correct sequence of nursing seeds? I. watering of sown seeds II. making drills with a dibber III. covering seeds with palm fronds IV. sowing seeds in drills

18

If the recommended spacing for a tree crop is 2.5m by 4.0m. How many seedlings are required to plant 2 hectares of farmland?

19

Which of the following processes are associated with rubber production? I. coagulation II. fermentation III. tapping

20

The following crops require staking except

21

The frequency of weed control on a tomato farm does not depend on

22

Citrus is usually propagated by

23

The botanical name of groundnut is

24

Ornamental plants reduce noise pollution in the environment by

25

Which of the following statement about the effects of diseases on crops are true? Reduction in I. quality of products II. photosynthetic ability III. cost of production IV. yield of the produce

26

Which of the following insect-pests possesses biting and chewing mouthparts?

27

Striga spp. is a parasitic weed of

28

The first activity to undertake before establishing a plantation is to

29

Fruits should be harvested at the appropriate time in order to

30

Which of the following crops are useful to the soap-making industry? I. kolanut II. coconut III. shea nut

31

An advantage of rotational grazing is that

32

A sheep grained 20 kg of weight after consuming 60 kg of feed. Determine the feed conversion ratio.

33

A disease which affects poultry only is

34

Which of the following factors have negative influence on egg weight? I. high environmental temperature II. poor lighting III. comb size

35

Fish ponds in arid areas should be deeper than those in the rain forests in order to

36

In sheep production, litter is put on the floor mainly to

37

Determine the number of pigs that can be housed in a pigsty measuring 5.0 m by 4.0 m, if the floor space for a pig is 2.0m 2 .

38

The type of weed control involved when tilapia feeds on aquatic weeds is

39

Which of the following statement about cross breeding in farm animals is false?

40

On which of the following criteria is pedigree selection in animal improvement based?

41

Which of the following symptoms is typical of louse infestation in livestock?

42

Which of the following statement about herbivores are true? I. non-ruminant herbivores have long ceaca II. non-ruminant herbivores have complex stomach III. ruminant herbivores chew the cud

43

If an injured goat bleeds without clotting, it is likely that the goat is deficient in

44

Determine the cost price of a farm equipment that has a salvage value of N500,000.00, a useful life of 10 years and an annual depreciation of N400,000.00.

45

An example of long-term liability of a farmer is

46

A farm business makes profit when

47

Marginal cost of production is defined as

48

The price of a fixed asset at the end of its useful life is called

49

Which of the following criteria are used in selecting agricultural extension teaching methods? I. time available for the programme II. the number of farmers involved III. The agricultural needs of the farmers