SSRN Electronic Journal,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 1, 2022
Rice
(
Oryza
sativa
L.)
cultivation
by
continuous
flood
irrigation
is
widely
adopted
growers
worldwide.
Maintaining
optimum
depth
during
the
growing
season
can
have
an
impact
on
rice
yields
and
quality.
However,
surface
water
quality
has
received
less
attention
still
poorly
quantified,
mainly
due
to
low-frequency
measurements
at
field
scale
limited
capability
measure
different
parameters.
Therefore,
this
study
evaluated
a
two-year
experiment
assess
drainage
across
flooded
fields
cultivated
Histosols
flooding
under
four
depths-
5
cm,
10
15
20
cm.
On
average,
in
both
years,
all
treatments
reduced
total
suspended
solids
(TSS),
nitrogen
(TN),
phosphorus
(TP),
potassium
(TK)
loadings
40%,
38%,
36%,
32%,
respectively.
The
Canadian
Council
of
Ministers
Environment
Water
Quality
Index
showed
that
cm
had
favorable
index
compared
other
depths.
Results
indicated
no
significant
differences
yield,
therefor
be
as
optimal
for
Histosol.
With
application
starter
fertilizer
such
(N),
(P),
or
(K)
production
Histosol,
demonstrated
used
treatment
technology
improve
quality,
without
compromising
Agricultural Water Management,
Journal Year:
2024,
Volume and Issue:
297, P. 108816 - 108816
Published: April 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).
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(6), P. 837 - 837
Published: May 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,
Journal Year:
2025,
Volume and Issue:
15(10), P. 1050 - 1050
Published: May 12, 2025
Soil
organic
carbon
(SOC)
plays
a
vital
role
in
maintaining
soil
fertility
and
ecosystem
sustainability,
with
crop
residues
serving
as
key
input.
However,
how
different
maize
residue
components
influence
SOC
stabilization
across
aggregate
sizes
levels
remains
poorly
understood.
This
study
investigated
the
effects
of
roots,
stems,
leaves
on
dynamics
aggregate-associated
under
low-
high-fertility
Brown
Earth
soils
through
360-day
laboratory
incubation.
Results
revealed
that
incorporation
induced
an
initial
increase
SOC,
followed
by
gradual
decline
due
to
microbial
mineralization,
yet
maintained
net
retention.
In
low-fertility
soil,
leaf
led
highest
content
(12.08
g
kg−1),
whereas
root
were
most
effective
conditions
(18.93
kg−1).
Residue
addition
enhanced
macroaggregate
(>0.25
mm)
formation
while
reducing
microaggregate
fractions,
differential
patterns
distribution
sizes.
initially
accumulated
0.25–2
mm
aggregates
but
gradually
shifted
>2
<0.053
fractions
over
time.
Root
favored
via
mineral
association,
stem
promoted
aggregate-level
protection
soils.
These
findings
highlight
interactive
roles
type
regulating
sequestration
pathways.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(4), P. 854 - 854
Published: April 19, 2024
This
study,
employing
the
AquaCrop
model,
demonstrated
notable
efficacy
in
assessing
and
predicting
crop
yields
for
winter
wheat,
maize,
rapeseed,
sugar
beets
Joint
Experiment
Crop
Assessment
Monitoring
(JECAM)
test
area
of
Poland
from
2018
to
2023.
In-situ
measurements,
conducted
through
field
campaigns,
included
parameters
such
as
electromagnetic
radiation
reflectance,
Leaf
Area
Index
(LAI),
soil
moisture,
accumulated
photosynthetically
active
radiation,
chlorophyll
content,
plant
development
phase.
The
model
was
calibrated
with
input
data
covering
daily
climatic
ERA5-land
Daily
Aggregated
repository,
details,
characteristics.
Specifically,
Root
Mean
Square
Error
(RMSE)
values
ranged
1.92%
14.26%
mean
yield
per
hectare.
Maize
cultivation
showed
RMSE
ranging
0.21%
1.41%
Winter
rapeseed
exhibited
0.58%
17.15%
In
case
beets,
0.40%
1.65%
Normalized
Difference
Vegetation
(NDVI)-based
predictions
higher
accuracy
similar
maize
but
lower
compared
(LAI).
study
contributes
valuable
insights
into
agricultural
management
practices
facilitates
decision-making
processes
farmers
region.
