Soil Systems,
Год журнала:
2024,
Номер
8(3), С. 88 - 88
Опубликована: Авг. 13, 2024
Greenhouse
gas
emissions
from
agricultural
production
systems
are
a
major
area
of
concern
in
mitigating
climate
change.
Therefore,
study
was
conducted
to
investigate
the
effects
crop
residue,
nutrient
management,
and
soil
moisture
on
methane
(CH4)
maize,
rice,
soybean,
wheat
systems.
In
this
study,
incubation
experiments
were
with
four
residue
types
(maize,
wheat),
seven
management
treatments
{N0P0K0
(no
nutrients),
N0PK,
N100PK,
N150PK,
N100PK
+
manure@
5
Mg
ha−1,
biochar@
N150PK+
ha−1},
two
levels
(80%
FC,
60%
FC).
The
results
indicated
that
interactive
type,
significantly
affected
fluxes.
After
87
days
incubation,
treatment
receiving
rice
at
FC
had
highest
cumulative
CH4
mitigation
−19.4
µg
C
kg−1
soil,
emission
observed
application
N0PK
80%
(+12.93
soil).
Nutrient
mixed
across
following
order:
N150PK
>
biochar
N0P0K0
manure
N100PK.
Decreasing
reduced
all
treatments.
Wheat
maize
residues
exhibited
carbon
mineralization
rates,
followed
by
soybean
residues.
inputs
generally
decreased
mineralization.
regression
analysis
dominant
predictor
variables
estimated
31%
fluxes
Vertisols.
show
complexity
dynamics
emphasize
importance
integrated
crop,
nutrient,
(irrigation)
strategies
need
be
developed
minimize
mitigate
Biology,
Год журнала:
2024,
Номер
13(2), С. 85 - 85
Опубликована: Янв. 29, 2024
The
extracellular
enzymes
secreted
by
soil
microorganisms
play
a
pivotal
role
in
the
decomposition
of
organic
matter
and
global
cycles
carbon
(C),
phosphorus
(P),
nitrogen
(N),
also
serving
as
indicators
health
fertility.
Current
research
is
extensively
analyzing
these
microbial
populations
enzyme
activities
diverse
ecosystems
climatic
regions,
such
forests,
grasslands,
tropics,
arctic
regions
deserts.
Climate
change,
warming,
intensive
agriculture
are
altering
activities.
Yet,
few
reviews
have
thoroughly
explored
key
required
for
fertility
effects
abiotic
factors
on
their
functionality.
A
comprehensive
review
thus
essential
to
better
understand
C,
P,
N
cycles,
response
climate
changes,
ecosystems,
farming,
fertilization.
Studies
indicate
that
temperature,
moisture,
water
content,
pH,
substrate
availability,
average
annual
temperature
precipitation
significantly
impact
Additionally,
change
has
shown
ambiguous
activities,
causing
both
reductions
enhancements
catalytic
functions.
Global Change Biology,
Год журнала:
2024,
Номер
30(2)
Опубликована: Фев. 1, 2024
Abstract
Maintaining
or
even
increasing
crop
yields
while
reducing
nitrous
oxide
(N
2
O)
emissions
is
necessary
to
reconcile
food
security
and
climate
change,
the
metric
of
yield‐scaled
N
O
emission
(i.e.,
per
unit
yield)
at
present
poorly
understood.
Here
we
conducted
a
global
meta‐analysis
with
more
than
6000
observations
explore
variation
patterns
controlling
factors
for
maize,
wheat
rice
associated
potential
mitigation
options.
Our
results
showed
that
average
across
all
available
data
followed
order
(322
g
Mg
−1
,
95%
confidence
interval
[CI]:
301–346)
>
maize
(211
CI:
198–225)
(153
144–163).
Yield‐scaled
individual
crops
were
generally
higher
in
tropical
subtropical
zones
temperate
zones,
also
trend
towards
lower
intensities
from
low
high
latitudes.
This
was
better
explained
by
climatic
edaphic
fertilizer
management,
their
combined
effect
predicted
70%
variance.
Furthermore,
our
analysis
significant
decrease
use
efficiency
production
systems
cereal
>10
ha
(maize),
6.6
(wheat)
6.8
(rice),
respectively.
highlights
indicators
can
be
used
as
valuable
proxies
reconciling
trade‐offs
between
mitigation.
For
three
major
staple
crops,
fertilization
up
30%,
optimizing
timing
placement
application
using
enhanced‐efficiency
fertilizers
significantly
reduced
similar
yields.
data‐driven
assessment
provides
some
key
guidance
developing
effective
targeted
adaptation
strategies
sustainable
intensification
production.
