AGR203

1. Is refer to Precipitation.

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

The procedure of removing
excess emerged seedlings
is referred to as

Is not an impliment for bed
preparation

The quality of sunlight
affects

China is one of the riches
centre of

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

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

Grading and terracing are
done on

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

11. Photo period is refers to

the process of neutralizing
acidic soil is referred to as

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

Is the total amount of water
applied through irrigation

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

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

Does not cause disease in
plants

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

Grading and terracingare
done on a

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

the most common tillage
implement among small
scale farmers is

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

Aerobic and anaerobics are
classifications of

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

the most ancient and most
universal forms of tillage is

is the effect of high wind
velocity on crops

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

does not allow easy
percolation of water and
encourages surface run

29. _Is not a tillage practice

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

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

One of this is not a tillage
practice

Good soil aeration
facilitates

An alkaline soil contains a
high

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

oxidation after tillage
facilitates
__Of nutrients

Calcium carbonate is used
to neutralize

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

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

An acidic soil contains a
high

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

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

Is the process of
neutralizing acidic soil.

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 quality of sunlight
affects

An oxidised nutrient
becomes

Is the procedure used for
removing excess emerged
seedlings.

Good soil aeration
facilitates

s the total amount of water
applied through irrigation.

is the effect of low
temperature on crops.