The Open Agriculture Journal,
Год журнала:
2024,
Номер
18(1)
Опубликована: Дек. 31, 2024
Background
The
application
of
animal
slurry
to
the
soil
improves
its
quality,
as
manure
contains
many
nutrients
for
plants.
However,
this
could
negatively
impact
environment.
Objective
This
field
study
investigated
effects
addition
biochar
after
mechanical
separation
Whole
pig
Slurry
(WS)
into
Solid
(SF)
and
Liquid
Fractions
(LF)
on
Greenhouse
Gases
(GHG)
emissions
(N
2
O,
CO
2,
CH
4
)
ryegrass
(
Lolium
multiflorum
Lam.
cv
magnum)
yield.
Methods
Biochar
(1.0
kg
m
-2
was
applied
in
plots
alone
or
together
with
each
three
slurries
(80
N
ha
-1
a
total
eight
treatments
replications,
including
just
without
controls.
Soil
properties,
Gas
fluxes,
yield
were
measured
during
theautumn/winter
growing
season.
Results
results
showed
that
these
significantly
increased
pH
no
other
physicochemical
properties.
GHG
not
different
between
biochar.
use
efficiency
SF
>
WS
LF,
whereas
differences
observed
among
Conclusion
It
can
be
concluded
combined
SF/LF
sandy-loam
appears
have
autumn/winter
Overall,
finding
suggests
amounts
higher
than
1.0
may
need
reduce
nitrate
leaching
increase
crop
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 21, 2025
This
study
examined
the
effects
of
biochar
and
nitrogen
fertilizer
application
on
CO2
emissions,
microbial
communities,
soil
organic
carbon
(SOC)
in
irrigated
wheat
fields
through
a
3-year
field
experiment.
Eight
treatment
groups
were
established
for
this
study:
(1)
CK,
without
or
biochar,
(2)
N1
group,
with
(300
kg/ha),
(3)
B
(20
t/ha),
(4)
BN1
application,
(5)
N2,
15%
reduction
(255
(6)
BN2,
+
biochar.
(7)
N3,
30%
(210
kg/ha);
(8)
BN3,
The
results
revealed
an
increase
active
(AOC)
SOC
contents
after
addition
N
fertilizer,
particularly
their
combined
application.
In
BN2
treatment,
AOC
reached
27.48
g/kg
1.47
g/kg,
representing
increases
3.04%
30.91%,
respectively,
compared
to
N1.
comparison
cumulative
emissions
increased
by
9–48%
both
possibly
due
biochar's
influence
composition
functional
diversity
communities.
microbes
group
differed
significantly
from
that
CK
(p
<
0.01).
attributes
lower
than
those
BN1,
BN3
groups.
Furthermore,
bulk
density
biochar-amended
was
0.19
g/cm3
untreated
CK.
Overall,
combination
dose
255
kg/ha
emerged
as
most
effective
strategy
northern
Xinjiang,
enhancing
content
while
reducing
emissions.
However,
further
research
is
required
assess
long-term
approach
health
sustainability.
Agronomy,
Год журнала:
2025,
Номер
15(4), С. 995 - 995
Опубликована: Апрель 21, 2025
Biochar
has
gained
significant
attention
for
its
potential
in
carbon
sequestration,
soil
health
improvement,
and
crop
production
sustainability.
However,
the
existing
studies
predominantly
focus
on
short-term
experiments
conducted
acidic
or
neutral
soils.
This
study
investigates
long-term
effects
of
biochar
application
a
calcaric
cambisol
field
experiment
with
four
treatments:
CK
(no
fertilizer
biochar),
B
(only
NPK
(chemical
fertilizer),
NPKB
(combination
chemical
biochar).
assessed
organic
(SOC),
sorghum
yield,
bacteria,
plant
nutrient
accumulation
2020
2022,
properties
after
12
years
consecutive
2022.
The
results
revealed
increase
SOC
due
to
both
2022
compared
treatments
without
biochar.
12-year
also
significantly
enhanced
total
nitrogen
(N),
available
phosphorus
(P),
potassium
(K),
irrespective
application.
Notably,
N
P
remained
unaffected
by
biochar,
induced
was
even
lower
than
that
treatment
Furthermore,
bacterial
diversity
composition,
as
well
showed
no
alterations
years,
despite
increased
content.
These
findings
affirmed
benefits
through
cambisols,
but
positive
were
found
be
negligible.
Agronomy,
Год журнала:
2024,
Номер
14(9), С. 2176 - 2176
Опубликована: Сен. 23, 2024
Exogenous
organic
carbon
(C)
inputs
and
their
subsequent
microbial
mineral
transformation
affect
the
accumulation
process
of
soil
C
(SOC)
pool.
Nevertheless,
knowledge
gaps
exist
on
how
different
long-term
forms
crop
straw
incorporation
(direct
return
or
pyrolyzed
to
biochar)
modifies
SOC
composition
stabilization.
This
study
investigated,
in
a
13-year
field
experiment,
functional
fractions
protection
by
iron
(Fe)
oxide
minerals
soils
amended
with
biochar.
Under
equal
input,
was
enhanced
both
direct
(by
43%)
biochar
85%)
compared
non-amended
conventional
fertilization,
but
pathways.
Biochar
had
greater
efficiency
increasing
through
stable
exogenous
inhibition
respiration.
Moreover,
biochar-amended
contained
5.0-fold
SOCs
particulate
matter
(POM)
1.2-fold
more
mineral-associated
(MAOM)
relative
conventionally
fertilized
soils.
Comparatively,
although
magnitude
effect
smaller,
straw-derived
OC
preserved
preferentially
most
MAOM.
Straw
increased
nutrient
content
stimulated
activity,
resulting
increases
necromass
POM
MAOM
117%
43%,
respectively)
72%
18%).
promoted
poorly
crystalline
(Feo)
organically
complexed
(Fep)
Fe
oxides
accumulation,
were
significantly
positively
correlated
SOC.
The
results
address
decadal-scale
effects
application
formation
pool
soil,
understanding
causal
mechanisms
can
allow
practices
maximize
content.
These
are
great
implications
for
better
predicting
accurately
controlling
response
pools
agroecosystems
future
changes
disturbances
maintaining
regional
balance.
