AGR203

Only
Elements have been found
to be essentials for all
plants and four others have
been found essentials for
some plant.

is refers to the spraying of
the leaves of growing plants
with suitable fertilizer
solutions

All cultivated plants were
domesticated from their

the most ancient and most
universal forms of tillage is

all these elements are
major plant nutrient: Fe, N,
P and K with the exception
of one

6. _Is not a tillage practice

the practice of growing and
Ploughing in green crops to
increase the organic matter
content of the soil is
referred to as

this refers to the application
of fertilizers into the soil
close to the seed or plant
and is employed when
relatively small quantities of
fertilizers are to be applied

The procedure of removing
excess emerged seedlings
is referred to as

An acidic soil contains a
high

11. Photo period refers to

when the seeds are
germinated at temperatures
slightly above freezing
before they are sown. This
process is called

the practice where crop
production is carried out
with as little tillage or soil
disturbance as possible is
known as

the addition of any calcium
or calcium and magnesiumcontaining compound to the
soil for reducing acidity is
called

occurs when rainfall
intensity exceeds the
infiltration capacity of the
soil

may be defined as a
protective covering over the
soil surface that is intended
to minimize evaporation
losses

What is the effect of high
wind velocity on crops

Grading and terracing are
done on

The conventional way of
breaking up soil lumps is
through

20. Edaphic factors is refer to

21. Is refer to Precipitation.

Can be a method of pest
control

the practice of cultivating
and planting on strips of
land that are of the same
elevation is called

In this method the irrigation
water is applied to the crop
above the ground surface in
the form of spray

Can be a method of pest
control

tractors are most suitable
for small operations

when the cotyledons
remain at the level where
the seed was planted and
are not carried above
ground. Such seedlings
exhibit

Is the equipment use to
measure relative humidity.

is refer to fertilizer which
supply two or three of the
major plant nutrient
elements e.g. nitrogen,
phosphorus, and
potassium

30. Tillage facilitated all exept

occurs when rainfall
intensity exceeds the
infiltration capacity of the
soil

32. Is not a macro nutrient

One of this is not a tillage
practice

The premitive tillage tools
were made of the following:
Bones, Stones, Metals and
Wood with the exeption of

stunted growth,Loss of
green color, yellow
discoloration of leaves from
tip backward, older leaves
brown all these are
deficiency symptoms of

Is the procedure used for
removing excess emerged
seedlings.

All these can be
incorporated into the soil
Through Tillage: Rocks,
Organic matter, Humus and
Weeds with the exception
of

An alkaline soil contains a
high

Aerobic and anaerobics are
classifications of

40. Can cause Erosion

the most common form of
soil collection tillage in
tropical Africa is called

Is the equipments use to
measure temperature.

The richest and most
concentrated manure is

is used for making plates in
tractor batteries

during germination the
cotyledons are carried
above ground level due to
elongation of the region just
below the cotyledons such
kind of germination is
referred to as

46. Is not a micro nutrient

The conventional way of
breaking up soil lumps is
through

the process of neutralizing
acidic soil is referred to as

Good soil aeration
facilitates

the most common tillage
implement among small
scale farmers is