Numerical
models
of
crop
response
to
irrigation
and
weather
forecasts
with
internet
access
should
be
fully
utilized
in
modern
management.
In
this
respect,
we
developed
a
new
numerical
scheme
optimize
depth
that
maximizes
net
income
over
each
interval.
The
applies
volumetric
water
prices
inspire
farmers
save
water,
it
provides
growers
real-time
estimates
the
growing
season.
To
evaluate
scheme,
carried
out
field
experiment
for
groundnut
(
Arachis
hypogaea
L.)
grown
sandy
Arid
Land
Research
Center
(ALRC),
Tottori
University,
Japan.
Two
treatments
were
established
compare
proposed
an
automated
system.
Results
showed
although
gave
larger
amount
seasonal
28%,
achieved
2.18
times
owing
51%
higher
yield
compared
results
accuracy
rainfall
forecast
had
little
effect
on
outputs,
where
root
mean
square
error
(RMSE)
between
observed
forecasted
was
4.63
mm.
By
utilizing
simulation
information
soil–plant–atmosphere
system
into
would
more
cost-effective
tool
optimizing
depths
than
systems.
Measurement Science and Technology,
Год журнала:
2024,
Номер
35(9), С. 095801 - 095801
Опубликована: Май 23, 2024
Abstract
The
use
of
soil
moisture
sensors
for
irrigation
can
help
reduce
water
and
energy
consumption
risks
groundwater
contamination,
which
are
essential
aspects
pursuing
sustainable
development
goals.
However,
increased
adoption
this
technology
is
limited
by
calibration
requirements,
technical
complexities,
sensor
costs.
In
work,
a
simplified
method
reducing
the
measurement
error
recently
released
low-cost
(T-Higrow)
presented.
only
requires
measurements
dry
sample
from
target
soil,
inputted
into
simple
correction
formula
to
at
higher
levels.
requirements
proposed
enough
most
labs
or
extension
services.
This
was
compared
commonly
used
linear,
polynomial,
logarithmic
regression
models
based
on
repeated
bench-scale
experiments
within
0%–35%
range
in
silt
sandy
loam
soils
silica
sand.
Uncorrected
readings
correlated
well
with
(
r
:
0.94–0.98),
but
significant
overestimation
(25%–60%
error).
showed
comparable
reduction
across
all
types.
All
methods
reduced
down
2%–10%
(0.02–0.1
cm
3
−3
)
maintained
high
correlations
>
0.94),
except
correlation
around
3%.
Variability
amongst
generally
low
(Standard
Deviation:
0.01–0.03)
particularly
ranges
below
20%,
also
case
sensor-to-sensor
variability
0.01–0.03).
Sensor
evaluation
works
needed
increase
accessibility
improved
conservation.
Journal of Ecological Engineering,
Год журнала:
2023,
Номер
24(10), С. 198 - 204
Опубликована: Авг. 21, 2023
Providing
a
sufficient
level
of
moisture
while
growing
vegetables
is
the
key
to
high
yield,
its
excessive
or
insufficient
amount
can
lead
negative
phenomena
-disrupt
normal
functioning
plants,
deteriorate
their
chemical
composition,
etc.Every
year,
in
certain
areas
Ukraine,
particular,
Right
Bank
Forest
Steppe,
one
observe
unevenness
precipitation
(from
very
low
an
abnormally
short
period
time).During
heavy
rainfall,
plant
nutrition
system
disrupted
due
movement
chemicals
into
deeper
layers
soil,
which
may
become
inaccessible
root
thereby
changing
quantitative
and
qualitative
indicators
production.The
purpose
main
direction
research
was
aimed
at
studying
influence
different
levels
gray
forest
soil
conditions
Steppe
Ukraine
on
content,
accumulation
coefficients
danger
(Pb)
cadmium
(Cd)
leaf
mass
parsley,
dill
spinach
grown
zone
man-made
mobile
sources
pollution).According
results,
it
established
that
vegetable
plants
(parsley,
dill,
spinach)
accumulate
several
times
more
Pb
Cd
per
unit
compared
content
these
toxicants
same
soil.At
(98-134
mm)
during
formation
vegetables,
lower
coefficient
observed,
moderate
(30-37
mm).The
results
indicate
when
soils
under
with
mass,
decrease
observed.
Agricultural Water Management,
Год журнала:
2024,
Номер
296, С. 108809 - 108809
Опубликована: Апрель 3, 2024
The
need
to
feed
an
increasing
population
while
limiting
the
environmental
impact
of
agriculture
is
currently
one
greatest
challenges
relating
food
chain.
One
key
factors
involved
in
doing
this
irrigation,
which
has
a
downstream
that
can
be
minimised
if
nutrient
and
water
management
are
efficiently
undertaken.
objective
study
was
determine
irrigation
improvements
done
at
field
scale
modern
irrigated
areas
reduce
its
return
flow
impact.
conducted
Noguera
Ribagorçana
River
basin,
NE
Spain,
where
almost
6000
ha
land
were
brought
into
from
2000
2009.
We
based
our
on
quality
dataset,
measured
four
different
sites
along
29
km2
stretch
river
over
period
20
years.
Our
results
show
increase
nitrate
(from
1.7
mg·L−1
10.5
mg·L−1)
salt
concentrations
(electrical
conductivity
297
675
µS·m−1)
course
compared
most
upstream
monitoring
site.
That
exclusively
associated
with
flows
newly
area.
highest
found
during
non-irrigation
season
corresponds
local
rainy
season.
To
impact,
better
required.
Autumn
leaching
could
lowered
by
reducing
volume
applied
final
weeks
crop
cycles
order
allow
soil
retain
received
rainfall.
deal
issue,
we
propose
methodology
moisture
end
In
way,
ecosystems
located
further
would
reduced
yields
productivity
area
maintained.
Plants,
Год журнала:
2024,
Номер
13(12), С. 1636 - 1636
Опубликована: Июнь 13, 2024
Soil-based
irrigation
and
the
partial
substitution
of
chemical
fertilizers
with
manure
are
promising
practices
to
improve
water
nitrogen
(N)
use
efficiency.
We
hypothesize
that
their
combination
would
simultaneously
benefit
potato
production,
tuber
quality
profitability.
A
two-year
experiment
was
conducted
in
semiarid
northern
China
investigate
combined
effects
three
treatments
[rainfed
(W0),
soil-based
(W1),
conventional
(W2)]
N
[no
(N0),
(N1),
25%
(N2)]
on
these
indicators,
perform
a
comprehensive
evaluation
correlation
analysis.
The
results
showed
separately
affected
all
indicators
except
vitamin
C
content.
Compared
W2,
W1
significantly
increased
productivity
by
12%
efficiency
(IWUE)
30%
due
10%
lower
evapotranspiration
21%
use.
However,
W2
negatively
crude
protein
Conversely,
this
compensated
N1
N2.
There
were
slight
differences
between
N2
for
average
across
treatments,
while
under
W1,
leaf
area
index
(LAI)
recovery
(REN)
18%
29.4%,
respectively,
over
N1.
Also,
evaluations
W1N2
performed
best,
highest
yield,
profit
acceptable
quality.
This
can
be
explained
increase
LAI,
IWUE
REN
positive
correlations
yield
net
return.
Consequently,
had
complementary
synergistic
Heliyon,
Год журнала:
2024,
Номер
10(16), С. e36089 - e36089
Опубликована: Авг. 1, 2024
The
lack
of
soil
moisture-based
irrigation
intervals,
poor
distribution
water
among
users,
and
the
time-based
spatial
variability
supply
have
been
challenges
for
productivity
schemes
in
Lower
Kulfo
catchment,
Southern
Ethiopia.
This
study
was
conducted
to
develop
intervals
evaluate
delivery
field
level
efficiencies.
Soil
content,
flow
along
canal
were
measured
directly,
duty
estimated
by
using
CropWat
8
model.
To
minimize
stress
or
excess
problems,
needs
be
applied
when
content
drops
35.7
%
onion
pepper,
34.4
%%
watermelon,
32.5
wheat
maize
from
capacity.
However,
at
36.2
onion,
35.4
36.4
maize,
35
existing
scheme
that
increased
amount
field.
average
percentage
moisture
depletion
(p)
time
27.4
%,
which
below
recommended
value.
adopted
design
interval
4
&
6
days
5
7
watermelon
wheat,
respectively.
mean
adequacy
dependability
lower
catchment
1
0
Arba
Minch
scheme,
0.5
0.2
University
farmland,
0.4
0.25
private
farmland
0.1
0.43
Kollashara
value
equity
0.7
January,
0.6
February,
0.8
March
indicates
highly
temporary
variation
adequacy.
conveyance
82.7
on-farm
efficiency
also
56.6
%.
crop
yield
present
0.5ton/ha
4.9ton/ha
6.2ton/ha
0.6ton/ha
4.2ton/ha
very
low
compared
with
other
control
area.
Inadequate
inequitable
distribution,
variable
hinder
catchment;
adopting
optimized
practices
robust
management
can
enhance
efficiency,
equity,
productivity.
Irrigation and Drainage,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 2, 2024
Abstract
The
cheap
conductivity‐based
sensors
favoured
by
farmers
for
soil
moisture
monitoring
remain
largely
ignored
researchers
because
of
their
low
accuracy,
which
results
in
high
uncertainty
regarding
utility
irrigators.
In
this
work,
conductivity
measurements
were
compared
with
dielectric
permittivity
ranges
relevant
to
different
applications.
showed
that
the
captured
variability
well
(
R
2
>
0.8)
throughout
full
range
tested
(0%–35%),
is
consistent
literature.
Conductivity
consistently
distinguished
dry
from
wet
conditions
p
<
0.0001)
and
reflected
lower
0.5)
but
not
higher
(>20%).
This
problematic
important
thresholds
such
as
field
capacity
saturation
are
upper
ranges.
found
lack
any
meaningful
most
applications
except
those
distinguishing
indicating
lower‐range
patterns,
arid
environments.
gives
some
merit
considering
very
cost
if
corrosion
minimised.
described
evaluation
approach
suggested
an
example
developers,
labs
extension
services
better
communicate
potential
sensor
utilities
restrictions
practitioners
improve
accessibility
decision
support
technologies.