AGR203

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

the process of making hard
seed covering weaker or
pervious to water and
gases is referred to as

is the method the irrigation
where by water is applied to
the crop above the ground
surface in the form of spray.

What is the effect of low
temperature on crops

China is one of the riches
centre of

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

When a living seed fails to
germinate even when
provided with the normal
conditions necessary for
germination, such a seed is
said to be

What is the effect of high
wind velocity on crops

Is the equipments use to
measure temperature.

Among these: Disc, Chsel,
Rotary hoe and Subsoiler
one is not primary tillage
equipment

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

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

In order to prevent the
breakdown of soil
aggregates due to raindrop
impact, their aggregate
stability must be improved
by

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

All
Benefits from improved soil
earation

The quality of sunlight
affects

which of the following farm
implements perform the
functions such as smooth
and pulverize plowed soil
compact it and destroy
weeds

the total amount of water
applied through irrigation is
called

Tillage is define as
changing the soil condition
with a
__for the benefit of Man

oxidation after tillage
facilitates
__Of nutrients

Calcium carbonate is used
to neutralize

22. Is refer to Precipitation.

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

24. Cause litle injury to the corn

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

What is the effect of high
wind velocity on crops

27. Is not a macro nutrient

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

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

30. Is not a type of tillage

Stunted growth,Leaves turn
dark bluish green, purpling
and browning from tip
backward,Plants slow to
ripen, remaining green all
these are deficiency
symptoms of

is used for making plates in
tractor batteries

A tractor that has a track
running the full length on
both sides is

is generally defined as the
artificial application of water
to the soil for the purpose of
supplying the moisture
essential for plant growth

is commonly practiced with
respect to crops that are
planted in rows. It involves
tilling the areas between
the crop rows

One of this is not a tillage
practice

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

occurs when rainfall
intensity exceeds the
infiltration capacity of the
soil

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

Is the procedure used for
removing excess emerged
seedlings.

A good seed bed should
have

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

Grading and terracing are
done on

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

is refers to the number of
days between any two
subsequent irrigation during
periods without rainfall

Does not cause disease in
plants

47. Tillage facilitated all exept

cereal crops such as maize,
sorghum and millet are
planted with a definite inter
and intra row spacing to
achieve a precise plant
density. This method is
called

Continuous use of
ammoniacal or ammoniumforming fertilizers on acidic
soil should be avoided as it
tend to make the soil

50. Is not a micro nutrient