ISME Communications,
Год журнала:
2024,
Номер
4(1)
Опубликована: Янв. 1, 2024
Abstract
Biological
nitrogen
fixation
(BNF)
by
methanotrophic
bacteria
has
been
shown
to
play
an
important
role
in
maintaining
fertility.
However,
this
process
is
still
limited
aerobic
methane
oxidation
with
sufficient
oxygen.
It
remained
unknown
whether
and
how
BNF
proceeds
hypoxic
environments.
Herein,
we
incubated
paddy
soils
a
ferrihydrite-containing
mineral
salt
medium
enrich
the
presence
of
(20%,
v/v)
under
oxygen
constraints
(0.27%,
v/v).
The
resulting
microcosms
showed
that
ferrihydrite-dependent
significantly
contributed
(81%)
total
BNF,
increasing
15N
rate
13-fold
from
0.02
0.28
μmol
15N2
(g
dry
weight
soil)
-1
d−1.
was
reduced
97%
when
ferrihydrite
omitted,
demonstrating
involvement
BNF.
DNA
stable-isotope
probing
indicated
Methylocystis,
Methylophilaceae,
Methylomicrobium
were
dominant
methanotrophs/methylotrophs
assimilated
labeled
isotopes
(13C
or
15N)
into
biomass.
Metagenomic
binning
combined
electrochemical
analysis
suggested
Methylocystis
Methylophilaceae
had
potential
perform
methane-induced
likely
utilized
riboflavin
c-type
cytochromes
as
electron
carriers
for
reduction.
concluded
mediated
solely
conjunction
iron-reducing
bacteria.
Overall,
study
revealed
previously
overlooked
yet
pronounced
coupling
iron-dependent
improves
our
understanding
zones.
Journal of Agriculture and Food Research,
Год журнала:
2023,
Номер
11, С. 100533 - 100533
Опубликована: Фев. 16, 2023
The
demand
for
agricultural
goods
is
currently
higher
than
it
has
ever
been
before
due
to
the
expansion
of
world
population.
This
resulted
in
conversion
grassland
into
areas,
development
high-energy-intensive
agriculture
production
systems,
and
use
additional
chemical
organic
inputs
systems.
output
greenhouse
gases
(GHGs)
also
increased
same
way.
Carbon
dioxide
(CO2),
Nitrous
Oxide
(N2O),
Methane
(CH4)
most
significant
(GHGS)
that
are
producing
a
variety
disastrous
consequences
climate
change.
Despite
fact
CH4
N2O
released
smaller
amounts
CO2,
they
have
larger
Global
Warming
Potential
CO2.
analysis
begins
with
an
examination
variables
contribute
gas
emissions,
which
covers
both
inorganic
factors
(such
as
nitrogen,
phosphorus,
potassium
fertilizers)
(Animal
manure,
composted
bio-solids,
crop
species).
study
underlines
need
more
research
intricate
interactions
physical,
chemical,
biological
elements
near
future.
Field
crops
other
cereals,
such
legumes,
oilseeds,
vegetables,
fruits,
account
amount
(GHG)
emissions.
Precision
may
be
viable
option
increasing
efficiency.
Optimal
management
practices
should
implemented
farm
field
settings
through
methodical,
site-specific
approaches.
Frontiers in Sustainable Food Systems,
Год журнала:
2023,
Номер
7
Опубликована: Март 6, 2023
A
large
amount
of
nitrogen
(N)
fertilizer
is
required
for
paddy
cultivation,
but
use
efficiency
(NUE)
in
farming
low
(20–40%).
Much
the
unutilized
N
potentially
degrades
quality
soil,
water,
and
air
disintegrates
functions
different
ecosystems.
It
a
great
challenge
to
increase
NUE
sustain
rice
production
meet
food
demand
growing
population.
This
review
attempted
find
out
promising
management
practices
that
might
while
reducing
trade-off
between
environmental
pollution.
We
collected
collated
information
on
associated
barriers.
set
existing
crop,
strategies
can
be
suggested
increasing
NUE,
which,
however,
not
capable
halve
waste
by
2030
as
stated
“Colombo
Declaration”
United
Nations
Environment
Program.
Therefore,
more
efficient
tools
are
yet
developed
through
research
extension.
Awareness-raising
campaign
among
farmers
must
against
their
misunderstanding
higher
provides
yields.
The
findings
help
policymakers
formulate
suitable
policies
regarding
eco-friendly
wetland
cultivation
ensure
better
utilization
costly
fertilizer.
Discover Agriculture,
Год журнала:
2024,
Номер
2(1)
Опубликована: Май 28, 2024
Abstract
Ensuring
global
food
security
under
present
and
futuristic
scenario
of
climate
change
accompanied
by
expanding
population
is
major
concern
worldwide.
Researchers
across
the
world
are
focusing
on
sustainable
agronomic
practices
to
combat
induced
issues
like
desertification,
reduction
in
crop
yield,
pest
outbreaks,
soil
health.
Biochar
has
demonstrated
positive
effects
plant
growth,
development,
fruit
quality,
carbon
capture
sequestration.
Studies
indicate
that
biochar
amendments
can
enhance
health,
growth
development
as
well
help
combating
abiotic
stressors.
several
properties
make
it
an
attractive
amendment,
including
high
porosity,
surface
area,
water-holding
capacity,
ability
increase
microbiota,
which
turn
promote
nutrient
uptake
reduce
erosion.
Environmentally,
biochar’s
degrade
organic
pollutant
sequester
makes
a
very
addition
agriculture.
Nonetheless,
also
been
reported
have
potential
hazardous
impacts
human
health
associated
with
possible
leakage
toxic
elements
particulate
matter
pollution.
However,
lack
exhaustive
studies
detail
all
aspects
application
agroecosystem
impedes
decision
making
its
overall
usability
There
exists
need
for
comprehensive
review
cover
important
supplementation.
This
provides
thorough
overview
multifaceted
biochar,
encompassing
soil,
environment,
while
exploring
limitations
along
application.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
274, С. 116204 - 116204
Опубликована: Март 14, 2024
Climate
change
and
cadmium
(Cd)
contamination
pose
severe
threats
to
rice
production
food
security.
Biochar
(BC)
has
emerged
as
a
promising
soil
amendment
for
mitigating
these
challenges.
To
investigate
the
BC
effects
on
paddy
upon
GHG
emissions,
Cd
bioavailability,
its
accumulation,
meta-analysis
of
published
data
from
2000
2023
was
performed.
Data
Manager
5.3
GetData
plot
Digitizer
software
were
used
obtain
process
selected
parameters.
Our
results
showed
significant
increase
18%
in
pH
with
sewage
sludge
application,
while
9%
organic
carbon
(SOC)
using
bamboo
chips
BC.
There
reduction
bulk
density
(8%),
but
no
observed
porosity,
except
wheat
straw
which
reduced
porosity
by
6%.
Sewage
significantly
dioxide
(CO2)
7–8%
municipal
biowaste
methane
(CH4)
emissions
2%.
In
case
heavy
metals,
sunflower
seedshells-derived
materials
husk
bioavailable
soils
24%
12%,
respectively.
uptake
roots
lowered
considerably
addition
kitchen
waste
(22%),
peanut
hulls
(21%),
corn
cob
(15%)
based
Similarly,
cotton
sticks,
waste,
hulls,
restricted
translocation
shoots
22%,
27%,
20%,
19%,
respectively,
sawdust
husk-based
effective
reducing
accumulation
grains
25%
13%.
Regarding
yield,
sticks-based
increased
yield
37%
Cd-contaminated
soil.
The
demonstrated
that
is
an
multi-pronged
strategy
sustainable
resilient
cultivation
lowering
greenhouse
gas
improving
yields
under
increasing
threat
climate
change.
Agriculture Ecosystems & Environment,
Год журнала:
2023,
Номер
355, С. 108593 - 108593
Опубликована: Май 20, 2023
This
study
presents
detailed
crop
and
gas
flux
data
from
two
years
of
rice
production
at
the
experimental
farm
ICAR-Indian
Agricultural
Research
Institute,
New
Delhi,
India.
In
comparing
4
nitrogen
(N)
fertiliser
regimes
across
cultivars
(CRD
310,
IR-64,
MTU
1010,
P-44),
we
have
added
to
growing
evidence
environmental
costs
in
region.
The
shows
that
cultivar
can
impact
yields
both
grain,
total
biomass
produced
given
circumstances,
with
CRD
310
showing
consistently
high
use
efficiency
(NUE)
for
compared
other
tested
varieties,
but
not
necessarily
highest
grain
yield,
which
was
P-44
this
experiment.
While
NUE
did
vary
depending
on
treatments
(ranging
41%
73%),
translate
directly
into
reduction
emissions
ammonia
(NH3)
nitrous
oxide
(N2O).
Emissions
were
relatively
similar
different
regardless
NUE.
Conversely,
agronomic
practices
reduced
N
losses
associated
higher
yield.
terms
application,
outstanding
very
methane
(CH4)
as
a
result
incorporating
farmyard
manure
(FYM)
paddies,
dominated
overall
effect
global
warming
potential.
nitrification
urease
inhibiting
substances
decreased
N2O
overall,
NH3
unaffected
(or
slightly
higher).
Overall,
greatest
greenhouse
(GHG)
came
reducing
irrigation
water
fields,
resulting
N2O,
significantly
less
CH4
emissions,
net
GHG
emission
continuous
flooding.
genetic
differences
generated
more
variation
yield
than
management
(excluding
controls),
whereas
agronomy
larger
genetics
concerning
gaseous
losses.
suggests
mixed
approach
needs
be
applied
when
attempting
reduce
pollution
potential
swapping
synergies
need
considered.
Finding
right
balance
cultivar,
technique
type
could
while
getting
it
wrong
considerably
poorer
pollution.
Frontiers in Sustainable Food Systems,
Год журнала:
2022,
Номер
6
Опубликована: Окт. 31, 2022
In
rice
production
greenhouse
gas
emission
(GHG)
reduction
is
an
important
task
for
many
countries,
Tanzania
included.
Of
global
agricultural
GHG
emitted
from
fields,
about
30
and
11%
are
represented
by
CH
4
N
2
O,
respectively.
For
successful
climate
smart
cultivation,
management
practices,
including
nitrogen
fertilization
two
key
crucial
components
that
need
evaluation.
The
objective
of
this
study
was
to
evaluate
the
crop
practices
on
yield
gases
in
paddy
production,
Experiments
were
designed
split-plot
randomized
complete
block
replicated
three
times.
Two
namely
conventional
practice
(CP)
system
intensification
(SRI)
six
rates
fertilizer
(absolute
control,
0,
60,
90,120
150
kg
ha
−1
)
applied
consecutive
seasons.
Source-selective
Emission-adjusted
CalculaTOR
Cropland
(SECTOR)
used
calculate
emission.
Methane
range
88.7–220.6
season
,
where
higher
recorded
CP
treatments
(ABC,
0
120N)
compared
SRI
treatments.
reduced
methane
carbon
dioxide
59.8%
20.1%
over
CP,
Seasonal
nitrous
oxide
emissions
no
detected
amount
0.0002
kgN
O
up
while
treatment
detected.
interaction
90
(SRI90N)
grains
(8.1,
7.7
t
with
low
seasonal
warming
potential
(GWP)
(3,478
3,517
CO
e
intensity
(0.42,
0.45
per
paddy)
other
wet
dry
season,
Therefore,
mitigation
GWP
without
compromising
yield.