AGR203

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

The conventional way of
breaking up soil lumps is
through

the most common tillage
implement among small
scale farmers is

Aerobic and anaerobics are
classifications of

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

An alkaline soil contains a
high

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

8. Edaphic factors is refer to

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 conventional way of
breaking up soil lumps is
through

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

Does not cause disease in
plants

does not allow easy
percolation of water and
encourages surface run

China is one of the riches
centre of

What is the effect of high
wind velocity on crops

An alkaline soil contains a
high

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

18. Is refer to Precipitation.

19. Is not a micro nutrient

The crawler tractor is used
for
operations

21. Photo period is refers to

22. Tillage facilitated all exept

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

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

26. Is not a macro nutrient

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

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

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

Grading and terracing are
done on

Aerobic and anaerobics are
classifications of

The flowers of leguminous
field crops are

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

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

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

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

maintaining more moisture
in the soil,increasing
surface roughness and
reducing wind velocity are
all measures of

An oxidised nutrient
becomes

An acidic soil contains a
high

40. Is refer to Precipitation.

occurs when rainfall
intensity exceeds the
infiltration capacity of the
soil

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

the process of neutralizing
acidic soil is referred to as

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

irrigation method, where
water is applied directly to
the soil surface from a
channel located at the
upper reach of the field is
known as

The quality of sunlight
affects

s the total amount of water
applied through irrigation.

48. Is not a type of tillage

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

the total amount of water
applied through irrigation is
called