The most important soil micro-organisms concerned with decay and nutrients-recycling are
คำตอบ
(A)
bacteria and fungi
2
the nutrient content of soil may be influenced by the following except
คำตอบ
(A)
harrowing
3
What happens to the nitrogen and sulphur contents of vegetation when burning is used as a means of lans clearing? They
คำตอบ
(A)
are released by burning and lost as gases
4
Which of the following does not occur as a result of poor drained soil?
คำตอบ
(E)
increase in oxygen level of the soil
5
The different types of soil are determined by the relative amounts of each of the following components except
คำตอบ
(A)
rocks
6
Fertilizers that usually contain one nutrient which can be used directly by plants are commonly called
คำตอบ
(E)
straight fertilizers
7
A soil with particles of less than 0.002mm in diameter is referred to as
คำตอบ
(A)
clay
8
Which of the following factors does not bring about soil formation?
คำตอบ
(D)
sunshine
9
Plant micro-nutrients include the following except
คำตอบ
(A)
sulphur
10
Most crop plants do not survive in water-logged soils because
คำตอบ
(E)
oxygen has been displaced to its deficiency for crops
11
If the ginning percentage of the samaru variety of cotton is 35, what will be the amount of raw cotton obtained from a 6 hectare farm with a yield of 330 kg seed cotton per hectare?
คำตอบ
(E)
6930 kg
12
Which of the following factors does not affect the distribution of pasture grasses?
คำตอบ
(A)
type of species
13
Which of the following is not a reason for the government to encourage the planting of trees
คำตอบ
(E)
increasing output of mineral oil
14
Which of the following crops does not require nursery?
คำตอบ
(E)
maize
15
The causal organism of damping-oil disease of okra is a
คำตอบ
(E)
fungus
16
Which of the following crops cannot be easily improved by cross-breeding?
คำตอบ
(E)
yam
17
The commonest method of vegetative propagation is by
คำตอบ
(C)
cutting
18
I. spreading and perennial plant with long and rapid growing stems. II. height of plant about 1.2m III. resistance to dry weather. Which of the following pasture grasses has the description given above?
คำตอบ
(E)
gaint star grass
19
The annual burning of forest areas encourages
คำตอบ
(B)
deforestation
20
Which of the following crops is not correctly grouped with its industrial product?
คำตอบ
(E)
orange-margarine
21
The objective of crops improvement programmes is to produce the following except
คำตอบ
(E)
crops resistant to all pests
22
The bacterial blight of cotton is also known as
คำตอบ
(A)
black arm
23
Staking is very essential in the cultivation of
คำตอบ
(D)
tomato and yam
24
Vetok 85 is used to control
คำตอบ
(C)
stem borers
25
What symptom can be used to identify maize rust?
คำตอบ
(B)
raised brown spots on the leaves
26
I.Pale leaves II. Shrunken new leaves III. Water-soaked bark which peels off IV. Gum-like exudation from the cracks on the bark. Which of the following diseases of citrus has the symptoms listed above?
คำตอบ
(B)
gum-mosis
27
Which of the following is not a breed of cattle?
คำตอบ
(D)
sokoto red
28
Which of the following may cause disease in a fish pond?
คำตอบ
(C)
poor management practices
29
Which of the following may cause disease in a fish pond?
คำตอบ
(C)
poor management practices
30
The act of parturition in rabbits is called
คำตอบ
(A)
kindling
31
The factor affecting growth and development of young animals from birth to maturity include the following except
คำตอบ
(B)
size of the head
32
Which of the following is not a sign of animal approaching parturition?
คำตอบ
(E)
drop in milk production
33
Daily management routines in poultry include the following except
คำตอบ
(E)
debeaking
34
Basal feeds have a high proportion of easily digestible
คำตอบ
(E)
carbohydrates
35
The length of oestrus cycle (in days) in goat is
คำตอบ
(B)
18 - 21
36
When a cockerel is castrated, it becomes a
คำตอบ
(E)
pullet
37
Forages cut fresh and preserved in silo or pit are referred to as
คำตอบ
(B)
silage
38
Which of the following is not a method of improving range land?
คำตอบ
(E)
overgrazing
39
Which of the following characteristics is not correct of pigs?
คำตอบ
(E)
source of skin
40
The best control ensure for rinderpest disease in cattle is
คำตอบ
(E)
vaccination
41
Management practices of established pasture include the following except
คำตอบ
(B)
transplanting
42
Temperature is an important factor which is monitored in fish ponds because
คำตอบ
(C)
it affects the metabolic processes in fish
43
Diarrhoea tainted with blood is a symptom of
คำตอบ
(B)
coccidiosis
44
The major cause of spoilage in fresh fish is
คำตอบ
(D)
bacterial attack
45
Selection of breeding males based on the performance of their female relatives is known as
คำตอบ
(A)
sib-selection
46
A farmer uses his agricultural loans for the following except
คำตอบ
(E)
marketing his crops
47
What is the effect of stability of market price on a produce? The
คำตอบ
(A)
profit of the producer would be constant if there is no increase in cost inputs
48
From which of the following sources can agricultural credits be more easily obtained by peasant farmers?
คำตอบ
(E)
credit and thrift socities
49
Net worth statement can be referred to as
คำตอบ
(A)
balance sheet
50
Which of the following activities is correct about agricultural extension agent?
คำตอบ
(B)
educating farmers on the use of improved inputs and techniques in agriculture
