Evaluating
and
optimizing
crop
management
strategies,
e.g.
plastic
film
mulching
(PM)
ratio
nitrogen
(N)
fertilizer
application
rate,
is
critical
to
improving
yields
sustainable
production
in
agroecosystems.
Currently,
simulation
models
combined
with
experimental
data
have
been
proved
be
effective
tools.
Herein,
a
two-year
(2021
2022)
field
experiment
was
conducted
the
Longzhong
rainfed
area
flat-cropped
spring
maize,
involving
three
PM
ratios
(0
[B],
75%
[W],
100%
[F])
four
N
rates
[N0],
180
[N180],
225
[N225],
270
[N270]
kg
ha-1).
The
AquaCrop
model
modified
consider
temperature
increasing
effect
of
meteorological
propose
appropriate
maize
strategies
for
different
hydrological
years.
Results
showed
that
could
improve
soil
water
heat
conditions,
effects
on
moisture
content
occurring
first
90
days
0–60
cm,
respectively.
fertilizers
biomass,
yield,
efficiency
use
from
maize.
However,
compensation
increase
required
during
sowing-tasseling
extraction
stages,
especially
sowing-emergence
stage.
has
better
applicability
simulate
fertility
process
study
after
compensating
temperature.
yield
more
stable
than
bare
ground,
highest
at
N225
treatments.
FN180
treatment
dry
year,
whereas
WN225
used
normal
wet
Dry-land
areas,
reasonable
optimization
ratio,
rate
crucial
promote
use,
an
strategy
Agronomy,
Год журнала:
2024,
Номер
14(3), С. 599 - 599
Опубликована: Март 16, 2024
The
evaluation
of
soil
particle
composition
and
salt
dynamics
is
essential
for
promoting
the
sustainable
development
oasis
agriculture
in
arid
regions
under
long-term
mulched
drip
irrigation
(MDI).
In
this
study,
we
employed
space-for-time
substitution
method
to
investigate
effects
MDI
on
salinity.
Additionally,
seven
fields,
with
durations
ranging
from
0
16
years,
were
selected
represent
primary
successional
sequence
though
time
Northwest
China.
Soil
samples
collected
three
depths
(0–30
cm,
30–60
60–100
cm)
then
analyzed
laboratory
content.
Our
findings
demonstrated
that
influenced
by
depth
mechanical
cultivation
maximum
wetting
front
depth,
application
significantly
altered
both
structure
layers
particles
after
8
years.
sand
content
salinity
gradually
decreased,
whereas
silt
clay
increased
increasing
duration
throughout
0–100
cm
depth.
Furthermore,
rates
desalination
stabilized
10
years
application,
levels
exceeding
90%
layer.
mass
fractal
dimension
(Dm)
exhibited
an
upward
trend
across
changes
indirectly
variations
Dm
study
effectively
mitigated
salinity,
changed
structure,
ultimately
enhanced
quality
cotton
yield.
Agricultural Water Management,
Год журнала:
2024,
Номер
297, С. 108816 - 108816
Опубликована: Апрель 23, 2024
Global
water
scarcity
has
become
a
non-negligible
problem
that
threatens
the
sustainable
development
of
agriculture.
In
order
to
alleviate
contradiction
between
grain
demand
and
resource
constraints,
it
is
particularly
important
explore
appropriate
irrigation
strategy
so
as
synergistically
increase
yield
use
efficiency
(WUE).
The
AquaCrop
model
were
locally
calibrated
simulate
optimal
amount
for
different
hydrological
years
using
four-year
field
measurements
(from
2017
2020)
maize
with
two
levels
(2400
m3/ha
4800
m3/ha)
in
Shihezi,
Xinjiang,
China.
On
this
basis,
regulated
deficit
(RDI)
strategies
optimized
based
on
variation
consumption
soil
content
(SWC)
during
growth
period.
Results
suggest
under
static
(fixed
proportion
growing
season)
wet,
normal,
dry
was
4733
m3/ha,
5381
6090
respectively.
dynamic
strategies,
RDI4
(65%
Ir
(the
required
each
interval)
at
R2-R5
stage)
RDI5
(85%
V6-V12
stage
85%
can
save
while
maintaining
high
yield.
Under
premise
basically
(18Mg/ha),
compared
year's
reduce
by
4.33%
2017;
although
slightly
increased
2.77%
2018,
could
be
3.65%;
2019,
49.44%
water,
will
24.13%
2020.
From
study,
recommended
single
65%
R2
R5
stages
or
V6
V12
(18
Mg/ha).
Heliyon,
Год журнала:
2023,
Номер
9(11), С. e21632 - e21632
Опубликована: Окт. 26, 2023
Watermelon
productivity
in
the
Arba
Minch
irrigation
scheme
has
been
hampered
by
water
scarcity,
with
only
Lady
Bells
watermelon
variety
being
cultivated
area.
This
challenge
can
be
mitigated
adopting
water-saving
techniques
and
selecting
stress-resistant
varieties.
Hence,
this
study
aimed
to
investigate
combined
impact
of
soil
mulching
deficit
on
various
varieties
validate
AquaCrop
model.
The
experiment
employed
a
randomized
complete
block
design
two
levels
application
(100
%
SMD
50
SMD),
practices
(non-mulching
mulching),
four
varieties:
(V1),
Green
Pearl
(V2),
Kaolack
(V3),
Koloss
(V4).
Soil
physical
properties
crop-related
data
were
used
calibrate
Straw
mulching,
average,
conserved
64.50
mm
262.75
under
100
levels,
respectively.
minimum
maximum
land
averages
6.2
tonsha−1
(T13)
17.6
(T2),
while
ranged
from
5.2
kgm−3
(T1)
12.4
(T10).
Bell
displayed
high
sensitivity
stress,
1.27
yield
response
factor
non-soil
treatment
application.
mean
benefit-cost
ratio
varied
1.52
2.90
average
values
RMSE,
NSE,
R2
for
model
0.70,
0.65,
0.80,
respectively,
indicating
model's
acceptability
predicting
effects
productivity.
Overall,
use
straw
irrigation,
particularly
varieties,
emerged
as
most
productive
cultivation
method
region
when
facing
limited
water.
Future
research
will
focus
assessing
during
growth
stages.
Water,
Год журнала:
2024,
Номер
16(17), С. 2545 - 2545
Опубликована: Сен. 9, 2024
Agriculture
is
the
most
important
sector
that
consuming
water
resources.
In
context
of
global
scarcity,
how
to
use
limited
resources
improve
efficiency
in
agriculture
or
achieve
maximum
crop
yield
and
fruit
quality
great
significance
for
ensuring
food
security.
Optimizing
irrigation
schedules
an
effective
measure
efficiency,
where
models
also
play
role.
However,
there
little
research
summarizing
optimization
based
on
models.
This
study
provides
a
systematic
review
optimize
simulation–optimization
When
optimizing
models,
selected
are
usually
mechanistic
agro-hydrological
Irrigation
scenarios
objectives
mainly
focused
both
aspects,
such
as
maximizing
yield,
quality,
productivity,
productivity.
Minimizing
consumption
total
amounts
serve
objectives,
quantity,
frequency,
interval
decision
variables.
saline
areas
low
fertilizer
utilization
areas,
variables
involve
some
indicators
related
salt
nitrogen,
desalination
rate,
minimum
content,
nitrogen
leaching
which
salinity,
fertilization
have
been
upgraded
from
water-production
function
mechanism
addition,
algorithms
traditional
techniques
intelligent
algorithms.
Decision-making
used
make
decisions
results.
spatial
scale
problem
was
developed
fields
regions,
time
growth
stage,
beginning
with
months,
shortening
ten
days,
then
day,
hour.
detailed
introduction
widely
algorithms,
genetic
well
techniques.
At
same
time,
it
proposed
future
should
focus
improving
analyzing
uncertainty
schedule
optimization,
precise
regulation
schedules.
Agriculture,
Год журнала:
2024,
Номер
14(6), С. 837 - 837
Опубликована: Май 27, 2024
This
study
aimed
to
compare
remotely
sensed
data
with
in
situ
using
the
AquaCrop
simulation
model
for
accurately
monitoring
growth
conditions
and
predict
grassland
biomass
north-eastern
central-western
regions
of
Poland
from
2020
2022.
The
was
calibrated
input
data,
including
daily
climate
parameters
ERA5-Land
Daily
Aggregated
dataset,
crop
characteristics
(initial
canopy
cover,
maximum
harvest
index),
soil
characteristics.
Additionally,
such
as
leaf
area
index
(LAI),
texture
classes,
plant
stages
were
obtained
through
field
campaigns.
grassland’s
results
indicate
that
root
mean
square
error
(RMSE)
values
region
ranged
0.12
0.35
t·ha−1,
while
region,
they
0.07
t·ha−1.
Overall,
outcomes
Sentinel-2
perform
comparably
measurements,
some
instances,
even
yield
superior
results.
contributes
valuable
insights
into
grass
production
management
on
farms,
providing
essential
information
tools
managers
better
understand
development.
Agriculture,
Год журнала:
2022,
Номер
12(10), С. 1589 - 1589
Опубликована: Окт. 1, 2022
The
mulch
film
residues
in
cotton
fields
south
Xinjiang
have
caused
serious
harm
to
the
soil
environment
and
ecological
security
oasis
areas.
Non-mulched
planting
provides
an
alternative
approach
this
problem.
In
experiment,
irrigation
was
provided
on
basis
of
reference
crop
evapotranspiration
(ET0).
Two
layouts
drip
tapes
(1T4R—one
tape
for
four
rows;
2T4R—two
rows)
were
applied
non-mulched,
drip-irrigated
Xinjiang,
their
impacts
water–heat–salt
dynamic
changes
water
consumption
yield
compared
analyzed.
experiment
shows
that
2T4R
layout
excellent
water–salt
growth
formation.
Soil
temperature
decreased
by
0.8
°C
belt
input
increased
CNY1200·hm−2.
However,
a
higher
profit
derived
from
could
compensate
expenditure.
results
show
cultivation
using
non-mulched
instead
mulched
can
potentially
alleviate
environmental
problems
plastic
Although
reduced
about
15%,
nitrogen
strategies
other
field
management
be
adjusted
disadvantages.
Agronomy,
Год журнала:
2023,
Номер
13(10), С. 2540 - 2540
Опубликована: Сен. 30, 2023
Spring
barley
(Hordeum
vulgare
L.)
is
an
increasingly
important
cash
crop
in
the
province
of
Quebec
(Canada).
Soil–crop
models
are
powerful
tools
for
analyzing
and
supporting
sustainable
production.
STICS
model
has
not
yet
been
tested
spring
grown
over
several
decades.
This
study
was
conducted
to
calibrate
evaluate
model,
without
annual
reinitialization,
predicting
aboveground
biomass
N
nutrition
attributes
at
harvest
during
31
years
successive
cropping
soil
(silty
clay,
Humic
Gleysol)
from
Saguenay–Lac-Saint-Jean
region
(northeastern
Quebec,
Canada).
There
a
good
agreement
between
observed
predicted
variables
years.
well
accumulation
plant
content
with
low
relative
bias
(|normalized
mean
error|
=
0–13%)
small
prediction
error
(normalized
root
square
6–25%).
Overall,
outputs
reproduced
same
trends
as
field-observed
data
various
tillage
systems
sources.
Predictions
were
more
accurate
rainfall
close
long-term
average.
These
‘newly
calibrated’
parameters
cropped
under
continental
cold
humid
climates
require
validation
using
independent
observation
datasets
other
sites.
