Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 14, 2023
Abstract
Aims
The
mechanisms
underlying
nitrous
oxide
(N
2
O)
production
in
limed
soils
with
N
fertilizer
application
are
not
well
understood.
This
study
aimed
to
investigate
the
effects
of
liming
on
nitrite
(NO
-
)
accumulation
and
its
contribution
subsequent
O
varying
concentrations
ammonium
(NH
4
+
additions
(50,
100,
250
mg
NH
-N
kg
-1
soil).
Methods
Soil
microcosm
incubation
was
designed
NO
acidic
vegetable
soil
after
different
levels
inputs.
Sterilization
samples
used
distinguish
biotic
abiotic
productions.
DNA
extraction
relative
functional
gene
detection
provided
molecular
evidence.
Results
Elevating
pH
alkaline
(pH
8.5)
through
caused
a
shift
microbial
community,
an
increase
abundance
ammonia
oxidizing
bacteria
(AOB)
decrease
(NOB).
resulted
conversion
half
added
,
higher
leading
more
cumulative
.
However,
resulting
from
relatively
modest
(max.
0.89
μg
per
hour).
Further
experiments
demonstrated
that
81.9-93.6%
associated
driven
by
processes
under
aerobic
conditions,
while
drove
42.4-54.8%
anaerobic
conditions.
Additionally,
reduced
92%
compared
observed
soil.
Conclusion
Liming
promotes
but
reduces
emissions.
Journal of Agricultural and Food Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Nitrite
is
an
important
chemical
intermediate
in
the
nitrogen
cycle
and
ubiquitously
present
environmental
biological
systems
as
a
metabolite
or
additive
agricultural
food
industries.
However,
nitrite
can
also
be
toxic
excessive
concentrations.
As
such,
development
of
quick,
sensitive,
portable
assays
for
its
measurement
desirable.
In
this
review,
we
summarize
working
principles
applications
surface-enhanced
Raman
spectroscopy
(SERS)
rapid,
portable,
ultrasensitive
method
detection
showcase
applicability
various
water,
food,
samples.
The
challenges
opportunities
future
developments
are
discussed.
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(6), P. 2502 - 2502
Published: March 12, 2025
A
reduction
in
emissions
of
nitrous
oxide
(N2O),
one
the
three
major
greenhouse
gases,
is
important
for
achieving
environmental
sustainability
and
carbon
neutrality
goals.
Agricultural
fields
are
primary
source
N2O
emissions,
their
management
measures
influence
gas
emission
reductions
greening
agriculture.
Among
these
practices,
cover
cropping
plays
a
key
role
promoting
sustainable
agricultural
production
as
technique
efficient
water
use
increasing
crop
yields
water-scarce
regions
worldwide.
The
present
paper
systematically
reviews
various
soil
factors,
such
temperature,
moisture,
pH,
carbon,
nitrogen
contents,
well
cycle-related
enzymes,
microorganisms
mulching
including
general
straw
mulching,
on
from
fields.
This
review
suggests
that
future
research
should
explore
long-term
effects
different
materials
application
rates
durations
emissions.
Furthermore,
networked
mathematical
model
causal
analysis
be
employed
to
elucidate
relationships
among
cycle
microorganisms,
consumption.
These
studies
will
help
deepen
our
understanding
cycling
processes
agroecosystems
with
aim
developing
environmentally
friendly
technologies
green
development.
