Judging
the
carbon
emissions
of
various
agricultural
inputs
in
crop
planting
and
clarifying
decoupling
level
between
grain
production
from
can
provide
data
support
policy
references
for
emission
reduction.
Considering
six
sources
(plowing,
irrigation,
fertilizer,
pesticide,
film
(agrifilm),
diesel
fuel
(diefuel)).
This
study
calculated
31
provinces
(municipalities
autonomous
regions)
China
2000
to
2021.
The
Tapio
index
was
used
explore
relationship
different
types
inputs.
regulating
effects
scale,
technological
progress,
their
covariates
on
reduction
were
explored
using
two-way
fixed-effect
regression.
results
showed
that
growth
rate
had
a
fluctuating
downward
trend
2021,
it
weakly
decoupled
most
years,
an
overall
strong
achieved
A
1%
increase
scale
leads
1.0%,
0.68%,
0.31%
increases
plowing,
diefuel,
respectively.
synergistic
effect
progress
significantly
reduce
planting,
thus
promote
planting.
provides
valuable
formulation
economies
synergy
targets
greater
extent.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(10), P. 3997 - 3997
Published: May 10, 2024
Although
crop
residue
returns
are
extensively
practiced
in
agriculture,
large
uncertainties
remain
about
greenhouse
gas
(GHG)
emissions
and
global
warming
potential
(GWP)
responses
to
return
(RR)
rates
under
different
placements
nutrient
supplements.
We
conducted
a
laboratory
mesocosm
experiment
Alfisol
central
India
investigate
the
of
soil
GHG
(CO2,
N2O,
CH4)
four
wheat
RR
(R0:
no
residue;
R5:
5
Mg/ha;
R10:
10
R15:
15
Mg/ha)
two
(surface
[Rsur]
incorporated
[Rinc])
three
supplement
levels
(NSLs)
(NS0:
nutrients,
NS1:
nutrients
(N
P)
added
balance
stoichiometry
C:N:P
achieve
30%
humification
at
t/ha,
NS2:
3
×
NS1).
The
results
demonstrated
significant
(p
<
0.05)
interaction
effect
NSL
placement
on
N2O
emission.
However,
CH4
GWP
rate
were
independent
NSL.
fluxes
ranged
from
−2.3
µg
N2O-N
kg−1
(R5
NS0
Rsur)
43.8
(R10
NS2
Rinc).
A
non-linear
quadratic
model
yielded
best
fit
for
with
(R2
ranging
0.55
0.99)
all
NSLs
placements.
Co-applying
Mg/ha
NS1
reduced
(cf.
R0
increasing
12:1
(C:N)
50:1
(C:P),
which
increased
R0)
across
Averaged
placements,
order
effects
(µg
C
soil)
was
R10
(5.5)
>
R5
(3.8)
R15
(2.6)
(1.6).
Our
linear
response
total
R0,
201.4
1563.6
mg
CO2
eq
soil.
In
conclusion,
quadratic/linear
GHGs
underscore
need
optimize
supplements
reduce
while
ensuring
optimal
health
productivity.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 9, 2024
AbstractBackground
and
aims
Straw
incorporation
was
widely
accepted
in
the
world
for
conservation
agriculture,
whereas
effects
on
greenhouse
gases
emissions
(GHGs)
nitrogen
dynamics
under
soils
formed
by
long-term
contrasting
(N)
fertilizer
are
still
unclear.Methodology
An
incubation
experiment
conducted
with
or
without
maize
straw
using
collected
from
fields
study
after
6-year
N
fertilization
of
0
(low
N),
187
(medium
N)
337
kg
ha−
1
(high
N).Results
amendment
significantly
stimulated
both
N2O
CO2
fluxes,
increased
cumulative
emission
0.82
18.98
times
than
average,
respectively.
Medium
soil
observably
weakened
(23.76
µg
kg−
1)
high
(162.71
attenuated
(1.85
g
Low
(2.30
amendment.
Soil
NH4+-N
NO3−-N
kept
increasing
trend
rising
N,
accelerated
decrease
24.72–78.98%,
reversed
tendency
enrichment
(+
75.19%)
to
scarcity
(-58.83%)
compared
removal
due
higher
fixation
capacity.
Moreover,
partial
least
squares
path
modeling
random
forest
mean
predictor
importance
disentangled
affected
GHGs
altering
turnover
capacity.Conclusion
promoted
enhanced
mineral
diminished
risk
losses.
Combing
medium
could
mitigate
effect
improvement
C
balance
farming
system
low
soils.
