Soil Systems,
Год журнала:
2025,
Номер
9(2), С. 38 - 38
Опубликована: Апрель 22, 2025
Biochar
is
a
stabilised,
carbon-rich
material
created
when
biomass
heated
to
temperatures
usually
between
450
and
550
°C,
under
low-oxygen
concentrations.
This
study
evaluated
the
effectiveness
of
sawdust,
cocoa
pod
ash
rice
husk
biochars
in
remediating
metal-contaminated
paddy
soil
Nobewam,
Ghana.
was
applied
21
days
before
cultivating
for
120
days,
followed
by
sampling
harvesting
metals
physicochemical
analyses.
Compared
untreated
soils,
biochar
treatments
exhibited
an
enhancement
quality,
characterised
increase
pH
1.01–1.20
units,
available
phosphorus
(P)
concentration
6.76–13.05
mg/kg
total
nitrogen
(N),
organic
carbon
(OC)
concentration,
ranging
from
0.02%
0.12%.
Variabilities
electrical
conductivity
effective
cation
exchange
capacity
were
observed
among
treated
soils.
Concentrations
potentially
toxic
(arsenic,
cadmium,
copper,
mercury,
lead
zinc)
soils
analysed
atomic
absorption
spectroscopy
showed
significant
differences
(p
<
0.05)
sampled
The
concentrations
arsenic
all
samples
exceeded
Canadian
Council
Ministers
Environment
quality
guideline
agricultural
with
having
highest
levels
Cadmium
had
potential
ecological
risk
index
>
2000
geoaccumulation
above
5,
indicating
pollution
samples.
In
contrast,
mercury
contamination
only
found
Among
tested
treatments,
its
combinations,
particularly
ash,
efficacy
reducing
metal
non-carcinogenic
human
health
risks
associated
consumption
grown
biochar-treated
lower
compared
control
Future
research
should
focus
on
long-term
field
studies
validate
these
findings
explore
underlying
mechanisms
governing
immobilization
fields.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 14, 2025
Applying
biochar
and
using
cover
crops
are
two
potential
approaches
to
reduce
greenhouse
gas
(GHG)
emissions.
However,
the
effectiveness
of
these
methods,
individually
or
in
combination,
salt-affected
soils
remains
unclear.
Thus,
objective
was
determine
impact
barley
(Hordeum
vulgare)
on
N2O
CO2
emissions
from
soil.
During
28-day
replicated
study,
GHG
were
measured
near-continuously
number
nirK,
nirS,
qnorB,
nosZ
gene
copies
12
28
days
after
planting
(DAP).
Biochar
accelerated
emergence
reduced
N2O–N
CO2–C
by
68%
44%
8
14
DAP,
respectively.
Barley
30.4%
between
at
DAP
it
nirK
copies,
that
encodes
for
nitrite
reductase
40.9%
increased
nitrous
oxide
193%.
The
attributed
reduction
soil
respiration,
whereas
changes
leading
efficiency
N2.
Overall,
combining
with
resulted
greatest
(85%)
compared
alone.
Biology,
Год журнала:
2025,
Номер
14(4), С. 443 - 443
Опубликована: Апрель 19, 2025
Soil
phosphorus
is
heavily
restricted
by
soil
acidification
and
salinization.
There
a
need
to
determine
biological
solution
for
this
issue
replace
the
overuse
of
chemical
fertilizer
that
aggravates
adverse
conditions,
such
as
salinity,
acidity,
metallic
toxicity.
Therefore,
study
aimed
at
determining
dynamics
in
terms
soil,
growth,
yield
rice
under
supplementation
phosphate
(P)-solubilizing
purple
nonsulfur
bacteria
(PNSB),
Cereibacter
sphaeroides
ST16
ST26,
salinized
collected
from
An
Bien
district,
Kien
Giang
province,
Vietnam,
greenhouse
conditions.
The
experiment
followed
completely
randomized
block
design
with
two
factors
four
replications.
In
particular,
reduced
percentages
P
(A)
were
0%,
25%,
50%,
75%,
100%
P.
supplementations
C.
strains
(B)
negative
control,
ST16,
mixture
both
ST26.
results
showed
supplying
ST26
insoluble
content
10.1–10.6%
Fe-P,
10.3–12.2%
Ca-P,
12.7–43.1%
Al-P
increased
available
8.33–27.8%,
leading
total
uptake
plants
increasing
29.4–56.1%.
also
Na+.
growth
components
rice,
greater
26.5–51.0%.
Supplying
each
strain
50–100%
recommended.
Ultimately,
inoculation
bacterial
allowed
reduction
percentage
recommended
but
remained
still.
Soil Systems,
Год журнала:
2025,
Номер
9(2), С. 38 - 38
Опубликована: Апрель 22, 2025
Biochar
is
a
stabilised,
carbon-rich
material
created
when
biomass
heated
to
temperatures
usually
between
450
and
550
°C,
under
low-oxygen
concentrations.
This
study
evaluated
the
effectiveness
of
sawdust,
cocoa
pod
ash
rice
husk
biochars
in
remediating
metal-contaminated
paddy
soil
Nobewam,
Ghana.
was
applied
21
days
before
cultivating
for
120
days,
followed
by
sampling
harvesting
metals
physicochemical
analyses.
Compared
untreated
soils,
biochar
treatments
exhibited
an
enhancement
quality,
characterised
increase
pH
1.01–1.20
units,
available
phosphorus
(P)
concentration
6.76–13.05
mg/kg
total
nitrogen
(N),
organic
carbon
(OC)
concentration,
ranging
from
0.02%
0.12%.
Variabilities
electrical
conductivity
effective
cation
exchange
capacity
were
observed
among
treated
soils.
Concentrations
potentially
toxic
(arsenic,
cadmium,
copper,
mercury,
lead
zinc)
soils
analysed
atomic
absorption
spectroscopy
showed
significant
differences
(p
<
0.05)
sampled
The
concentrations
arsenic
all
samples
exceeded
Canadian
Council
Ministers
Environment
quality
guideline
agricultural
with
having
highest
levels
Cadmium
had
potential
ecological
risk
index
>
2000
geoaccumulation
above
5,
indicating
pollution
samples.
In
contrast,
mercury
contamination
only
found
Among
tested
treatments,
its
combinations,
particularly
ash,
efficacy
reducing
metal
non-carcinogenic
human
health
risks
associated
consumption
grown
biochar-treated
lower
compared
control
Future
research
should
focus
on
long-term
field
studies
validate
these
findings
explore
underlying
mechanisms
governing
immobilization
fields.
