JAMB Agricultural Science 2013 Past Questions

The major reason which necessitates the
expansion of agriculture is the increase in

Which of the following groups of crops are
mostly cultivated in the rainforest zone of
Nigeria?

In farm animals, gonads are organs associated
with

Which of the following combinations of farm
inputs enhances the healthy growth of crop?

When farmers engages in both plant and animal
husbandry, he is practising

The classification of soils into sand, loam and
clay is largely determine by the percentage of

An example of igneous rock is

The most devastating agent of erosion is

A farming practice that encourages the depletion of soil fertility is

The kind of tillage method most suitable for
maize is

Use the diagram below to this answer

The structure labeled I represents a

Use the diagram below to this answer

This type of root is associated with

Self-pollination takes place when grains are
transferred from the

Which of the following parts of plants are
normally used for vegetative propagation?

The most suitable planting pattern for a
mechanized farm which is mono cropped is

Jute and kenaf thrive well in a soil that is

Forages that are chopped green and fed directly
to livestock are referred to as

Floriculture deals with the study of

An advantage of weeds is that they are used to

Cassava mosaic disease is transmitted by

A serious pest of sweet potato whose larvae
destroy the foliage is

The fertility of soils under forest is sustained
mainly by

The Mendelian law of segregation states that
the characteristics which is hidden in an F1,
reappears in F2 generation in a ratio

The breed of sheep that can be found
throughout Nigeria is

A female cattle which has not had a calf or
developed into the mature form of a cow is
referred to as

Which of the following farm animals is
considered as monogastric?

The process of mating in poultry is referred to as

In farm animals, a sign of heat includes

The anti-sterility vitamin in livestocks nutrition is

The relative humidity in an incubator is usually
set at

The causative organism of Avian influenza is a

The introduction of proper planktons species
into the pond is referred to as

Selection based on the performance of ancestors
is referred to as

The most important of all the factors of
production in crop farming is

From the curve above, at what point is it
advisable for the farmer to stop further addition
of input?

Elastic demand is the type in which a change in
price

Farm labour is usually measured in terms of

A piece of information contained in payroll
record of farms is

Retailers may create artificial scarcity of goods
by

The most effective method of disseminating
information among farmers is through

In surveying, the instrument used to measure
horizontal, vertical angles and planes is the

Use the following diagram below to answer this question

During which of the following plant propagation
methods is the tool represented used?

The part labeled I is made of

Which of the following routine maintenance in a
tractor is necessary on daily basis?

The type of energy obtain from the sun is

The storage facility that is not suitable for grains
is the

In biotechnology, propagation is mainly by

The desktop computer used for data
management in agri-business is

A hypothesis can be described as