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
Environment & Health,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
Mitigating
mercury
(Hg)
risk
in
the
rice-paddy
system
is
crucial
for
safeguarding
food
safety
and
human
health,
as
rice
a
main
source
of
exposure
to
neurotoxic
methylmercury
(MeHg).
Current
mitigation
strategies
predominantly
focus
on
reducing
availability
inorganic
Hg
(IHg)
methylation,
achieved
primarily
through
emission
control
situ
immobilization.
While
these
IHg-targeted
approaches
have
effectively
reduced
MeHg
bioaccumulation
subsequent
exposure,
their
efficacy
largely
undermined
by
transformations
fluctuating
environmental
conditions
due
complex
protracted
pathway
linking
IHg
from
sources
at
point
exposure.
In
light
recent
advancements
MeHg-related
transformations,
we
emphasize
development
MeHg-targeted
improve
overall
efficiency
management
systems.
include
microbial
regulation
diminish
net
production,
facilitating
demethylation
soils,
promoting
vivo
degradation
within
plants.
Although
are
still
nascent
stages,
they
hold
significant
promise
potential
high
uncertainties,
owing
shorter
between
production
Integrating
IHg-
offers
comprehensive
synergistic
approach,
paving
way
more
effective
Water,
Journal Year:
2024,
Volume and Issue:
16(18), P. 2671 - 2671
Published: Sept. 19, 2024
While
previous
studies
have
suggested
that
biochar,
nitrification
inhibitors,
and
urease
inhibitors
may
reduce
soil
greenhouse
gas
emissions,
their
effectiveness
in
soils
irrigated
with
alternative
water
resources
remains
unclear.
To
compensate
for
this,
reclaimed
livestock
wastewater
were
utilized
as
alongside
groundwater
control.
Nitrapyrin
N-(n-butyl)
thiophosphoric
triamide
biochar
applied
to
the
either
individually
or
combination,
a
no-substance
treatment
(NS)
was
included
comparison.
The
results
revealed
irrigation
exacerbated
global
warming
potential.
Compared
NS,
all
exogenous
substance
treatments
suppressed
nitrous
oxide
(N2O)
emissions
while
increasing
carbon
dioxide
(CO2)
affecting
methane
(CH4)
varied
across
irrespective
of
types.
Interestingly,
additional
reduced
inhibitory
effect
on
effect.
Using
potential
by
48.3%
50.1%
under
irrigation,
respectively.
However,
when
combination
increased
52.1–83.4%
compared
alone,
similar
trend
also
observed
scenario
increases
ranging
from
8.8
35.1%.
Therefore,
combined
application
should
be
approached
cautiously,
considering
emissions.
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
