Agronomy,
Journal Year:
2024,
Volume and Issue:
14(11), P. 2470 - 2470
Published: Oct. 23, 2024
Mulching
could
effectively
improve
the
soil
hydrothermal
environment,
changes
in
structure,
increase
entropy,
and
conserve
moisture
to
solve
problem
of
grain
reduction
caused
by
perennial
drought
Northwest
China.
Thus,
a
two-growing-season
field
experiment
(2021–2022)
with
five
treatments
(PM1,
biodegradable
plastic
film
mulching;
PM2,
SM1,
straw
strip
SM2,
crushed
corn
full
CK,
no
mulching
as
control)
was
conducted
investigate
effects
different
materials
on
aggregate
distribution,
stability,
tuber
yield
rainfed
potato
farmland
Over
two
growing
seasons,
planting,
average,
increased
(p
<
0.05)
at
0–200
cm
depth
9.0%
relative
CK
(SM2
(11.6%)
>
SM1
(10.3%)
PM2
(8.6%)
PM1
(7.0%)).
The
significantly
regulated
temperature
during
whole
growth
period,
which
0–25
period
2.1
°C
(PM2
(2.1
°C)
(2.0
°C));
meanwhile,
reduced
1.4
(0.9
(0.6
°C)).
All
improved
macroaggregate
content
stability
all
depths
from
0
40
cm,
increases
31.4%
27.1%
mean
weight
diameter
(MWD)
22.6%
21.2%
geometric
(GWD)
compared
respectively.
Straw
fresh
12.5%
12.6%
were
greatest
SM2
PM2.
Crushed
is
difficult
sow
harvest;
therefore,
production,
provide
an
environmentally
friendly
technology
for
dryland
production.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(5), P. 1077 - 1077
Published: May 19, 2024
Mulch
is
an
important
measure
for
improving
agricultural
productivity
in
many
semiarid
regions
of
the
world.
However,
impacts
various
mulching
materials
on
soil
hydrothermal
characteristics,
enzyme
activity,
and
potato
yield
fields
have
not
been
comprehensively
explored.
Thus,
a
two-growing-season
field
experiment
(2020–2021)
with
four
treatments
(SSM,
straw
strip
mulching;
PMP,
plastic
film
large
ridge;
PMF,
double
ridge-furrow
full
CK,
no
conventional
planting
as
control)
was
conducted
to
analyze
activities
Loess
Plateau
Northwest
China.
The
results
indicated
that
practices
had
positive
effect
moisture,
SSM,
PMF
increasing
by
7.3%,
9.2%,
respectively,
compared
CK.
Plastic
significantly
increased
temperature
1.3
°C,
reduced
0.7
°C
0–30
cm
layers
whole
growth
period.
On
average,
urease
activity
0–40
14.2%,
2.8%,
2.7%,
enhanced
sucrase
19.2%,
8.6%,
5.7%,
catalase
9.6%,
while
SSM
decreased
10.1%.
Mulching
tuber
water
use
efficiency
based
dry
(WUE),
18.6%,
31.9%,
29.7%,
WUE
50%,
57.0%
over
correlation
analysis
revealed
moisture
main
factor
influencing
(r
=
0.95**).
could
improve
environment,
regulate
activities,
promote
increase.
As
sustainable
protective
measure,
conducive
ecological
environment
farmland
development
regional
organic
agriculture.
Soil and Water Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
The
labile
fractions
of
organic
carbon
(OC),
which
are
a
reflection
the
properties
soil
and
its
use,
appear
to
be
suitable
parameters
for
their
use
as
indicators.
aim
this
study
was
determine
reliable
relatively
simple
indicators
detecting
chemical
physical
stabilizations
OC,
would
respond
sensitively
land
use.
includes
forest
ecosystem
(FE)
agroecosystem
(AE)
with
different
tillage
intensities
(reduced
tillage,
RT
conventional
CT)
on
real
farms.
Parameters
C
N
were
tested.
For
depth
<
0.1
m
in
FE,
hot
water
extractable
(HWEOC)
stabilization
nitrogen
(NL)
most
Higher
values
HWEOC
indicate
OC
by
decreasing
decomposition,
pH
or
increasing
carbonates,
recalcitrant
fractions,
higher
NL
incorporation
into
silt
fraction
larger
macro-aggregates.
In
AE
RT,
these
pool
index
(CPI)
lability
(LIC)
stabilization.
CPI
LIC
formation
size-optimal
dry-sieved
(DSA;
1–3
mm)
wet-sieved
(WSA;
1–2
aggregates.
CT,
it
NL.
Its
point
through
alkaline
cations,
size-fraction
>
0.01
mm
DSA
(1–3
mm).
0.3
AE,
CL
(for
RT),
value
points
clay
CT),
indicates
conditions
acidification.
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
16
Published: May 1, 2025
Introduction
Tropical
regions
are
characterized
by
high
temperatures
and
abundant
rainfall,
which
facilitate
rapid
carbon
mineralization.
However,
research
on
soil
organic
conversion
efficiency
(Esoc)
in
these
areas
is
currently
constrained
a
lack
of
robust
data
support.
Methods
This
study
used
nylon
-
bags
with
typical
tropical
materials
(pineapple
leaf
(PAL),
banana
stems
(BAS),
coconut
husk
(CCH),
fertilizer
(OF))
to
explore
how
mixing
straw
latosol
impacts
products,
understand
the
relationships
among
Esoc,
material
composition
(glycolipid,
hemicellulose,
cellulose,
lignin),
enzyme
activity.
Results
CCH
had
highest
from
37.79%
96.87%,
followed
OF
26.71%–63.12%.
The
Esoc
PAL
BAS
was
34.57%
25.32%
at
90
days,
7.59%
2.55%
1080
days.
main
factor
that
determines
difference
materials.
Compared
CK
treatment,
for
90_days
mainly
O–alkyl–C,
anomertic–C,
N–alkyl/methoxyl–C,
an
unstable
structure.
decomposition
products
consisted
aromatic–C,
carbonyl–C,
N–alkyl/methoxyl–C.
increased
mixed
N–alkyl/methoxyl–C
anomertic–C.
In
short-term
(90
days),
PAL,
BAS,
quantity
diversity
microorganisms,
as
well
activities
xylosidase
cellobiohydrolase.
enhanced
phenol
oxidase
activity
maintained
microbial
biomass
stabilityin
long-term
(1080
days).
Discussion
revealed
changes
under
different
promotion
effects
biomass,
short
term
maintenance
stability
later
period
were
investigated,
provided
new
basis
further
exploring
function
mechanism
microorganisms
ecosystems.
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(5), P. 1034 - 1034
Published: April 25, 2025
Despite
the
global
imperative
to
enhance
carbon
sequestration
in
agricultural
landscapes,
saline–alkali
soils
present
distinctive
soil–microbe
constraints
that
limit
our
understanding
of
optimal
management
strategies.
This
study
addresses
critical
knowledge
gaps
regarding
mechanistic
relationships
between
bacterial
community
structure
and
stabilization
processes
soil.
A
three-year
field
experiment
was
conducted
Yellow
River
Delta,
China,
with
two
N
levels
(N1,
270
kg
ha−1;
N2,
210
ha−1)
three
C
treatments
(S0,
0
S1,
5000
S2,
10,000
ha−1).
SOC
by
straw
incorporation
increased
16.34–22.86%
8.18–11.91%,
no
significant
difference
S1
S2
treatments,
because
specific
mineralization
rate
(SCMR)
treatment
13.80–41.61%
higher
than
treatment.
The
reduced
nitrogen
application
(N2)
enhanced
efficiency
3.40–12.97%
compared
conventional
rates,
particularly
when
combined
half
incorporation.
Furthermore,
N1S1
treatment,
N2S1
induced
qualitative
transformations
chemistry,
increasing
aromatic
compounds
(28.79%)
while
reducing
carboxylic
fractions
(10.06%),
resulting
structural
stability
sequestered
carbon.
Bacterial
analysis
revealed
shifts
composition
under
different
treatments.
Half
(S1)
abundance
oligotrophic
strategists
(Verrucomicrobiae
Acidimicrobiia)
decreasing
copiotrophic
bacteria
(Bacteroidia),
indicating
a
transition
from
r-strategy
k-strategy
microbial
communities
fundamentally
altered
cycling.
were
beneficial
stabilize
composition,
reduce
optimize
survival
strategy,
thus
achieve
sequestration.