AGR203

The crawler tractor is used
for
operations

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

3. Is not a type of tillage

tractors do not usually have
adjustable tread of
adequate clearance for row
crop operations

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

The procedure of removing
excess emerged seedlings
is referred to as

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

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

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

10. Photo period refers to

An oxidised nutrient
becomes

12. Can cause Erosion

tractors can be referred to
as general purpose
machines

s the total amount of water
applied through irrigation.

the amount of irrigation
water required to bring the
soil moisture level in the
effective root zone to field
capacity is called

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

The conventional way of
breaking up soil lumps is
through

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

Grading and terracing are
done on

Is an equipment for making
ridges

Is the equipment use to
measure relative humidity.

does not allow easy
percolation of water and
encourages surface run

s the total amount of water
applied through irrigation.

24. Is not a macro nutrient

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

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

All
Benefits from improved soil
earation

One of this is not a tillage
practice

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

China is one of the riches
centre of

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

The quality of sunlight
affects

33. Is not a micro nutrient

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

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

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

What is the effect of low
temperature on crops

Good soil aeration
facilitates

is the effect of low
temperature on crops.

An oxidised nutrient
becomes

Good soil aeration
facilitates

is the effect of high wind
velocity on crops

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

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 high
wind velocity on crops

47. Cause litle injury to the corn

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

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

Is the procedure used for
removing excess emerged
seedlings.