AGR203

What is the effect of high
wind velocity on crops

2. Is refer to Precipitation.

oxidation after tillage
facilitates
__Of nutrients

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

tractors are most suitable
for small operations

Grading and terracing are
done on

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

which of the following soil
type does not allow easy
percolation of water and
encourages surface run

Does not cause disease in
plants

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

An acidic soil contains a
high

Grading and terracingare
done on a

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

Sometimes sowing is done
by scattering the seeds at
random on the field or plot.
This method of sowing is
referred to as

Is the process of
neutralizing acidic soil.

The richest and most
concentrated manure is

Can be a method of pest
control

What is the effect of high
wind velocity on crops

19. Is refer to Precipitation.

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

Is not an impliment for bed
preparation

Is the procedure used for
removing excess emerged
seedlings.

Lossens the soil and result
in a seed bed suitable for
germination

One of this is not a tillage
practice

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

the total amount of water
applied through irrigation is
called

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

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

the quantity of water,
regardless of its source,
required by a crop in a
given period for its normal
growth and development
under field conditions at a
specific place is referred to
as

Is the total amount of water
applied through irrigation

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

Seeds that are to be stored
are commonly protected
from diseases and pest by
treating them with
appropriate pesticides. This
procedure is referred to as

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

35. Cause litle injury to the corn

Good soil aeration
facilitates

Lossens the soil and result
in a seed bed suitable fof
germination

seeds of many plants
require moist chilling
conditions for a period of
time to render them
capable of germination.
This process is called

Can be a method of pest
control

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

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

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

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

tractors can be referred to
as general purpose
machines

45. Can cause Erosion

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

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

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

Good soil aeration
facilitates

50. _Is not a tillage practice