AGR203

occurs when rainfall
intensity exceeds the
infiltration capacity of the
soil

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

3. Edaphic factors is refer to

The richest and most
concentrated manure is

is the effect of low
temperature on crops.

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

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

An oxidised nutrient
becomes

Is the equipment use to
measure relative humidity.

An alkaline soil contains a
high

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

Does not cause disease in
plants

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

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

Good soil aeration
facilitates

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

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

18. Is refer to Precipitation.

An oxidised nutrient
becomes

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

21. Is not a type of tillage

Does not cause disease in
plants

A good seed bed should
have

The crawler tractor is used
for
operations

s the total amount of water
applied through irrigation.

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

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

s the total amount of water
applied through irrigation.

What is the effect of high
wind velocity on crops

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

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

Can be a method of pest
control

33. Can cause Erosion

One of this is not a tillage
practice

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

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

Good soil aeration
facilitates

Good soil aeration
facilitates

Grading and terracingare
done on a

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

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

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

Grading and terracing are
done on

The conventional way of
breaking up soil lumps is
through

What is the effect of low
temperature on crops

Aerobic and anaerobics are
classifications of

is used for making plates in
tractor batteries

the process of neutralizing
acidic soil is referred to as

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

Is an equipment for making
ridges