Soil Use and Management,
Год журнала:
2024,
Номер
40(3)
Опубликована: Июль 1, 2024
Abstract
Saline
acid
sulphate
soils
are
commonly
ameliorated
using
traditional
amendments
like
lime
and
cow
manure.
Biochar,
derived
from
crop
residues,
is
another
potential
remedy
for
this
type
of
soil.
Their
combined
use
may
create
synergistic
effects,
necessitating
further
investigation.
This
study
aims
to
assess
the
impacts
biochar
with
on
soil
quality,
properties
rice
yield.
A
field
experiment
was
established
six
treatments:
no‐amendment
(control),
lime,
manure,
biochar,
manure
(
Oryza
sativa
)
planted
in
four
replicates.
The
revealed
that
effects
these
were
driven
by
their
inherent
characteristics
secondary
processes,
such
as
neutralization.
Combining
significantly
increased
pH
(6.2),
exchangeable
calcium
(648.6
cmol(+)
kg
−1
),
while
reducing
aluminium
(11.83
iron
(37.5
compared
control.
Meanwhile,
combining
notably
enhanced
Mehlich‐1
phosphorous
(3.4
mg
organic
carbon
(4.99%),
ammonium
(27.0
cation
exchange
capacity
(17.2
).
Biochar
exhibited
greater
synergetic
quality
than
when
lime.
Consequently,
combinations
improved
index,
which
a
strong
correlation
yield
biomass
its
value
below
0.4.
finding
indicates
exhibit
insignificant
growth.
Further
research
needed
elucidate
findings
explore
optimal
application
rates
concerning
management
practices.
Abstract
Arsenic
(As)
detoxification
in
polluted
soils
by
iron-based
materials
can
be
mediated
the
endogenous
soil
organic
matter
(SOM),
nevertheless
mechanisms
remain
unclear.
Herein,
SOM
a
paddy
was
substantially
removed
to
understand
its
roles
on
As
immobilization
biochar-supported
zero-valent
iron
(ZVI/BC).
The
results
demonstrated
that
ZVI/BC
application
significantly
decreased
bioavailability
64.2%
compared
with
control
under
anaerobic
condition.
XPS
and
HR-TEM
suggested
mainly
invoked
formation
of
ternary
complexes
(i.e.,
As-Fe-SOM).
However,
depletion
compromised
efficacy
for
289.8%.
This
is
likely
because
increased
fulvic
acid
OH
−
contents
soils.
Besides,
proportion
As(III)
available
fraction,
but
altered
associated
As(V)
reduction.
That
is,
reduction
resulted
from
reductive
capacity
ZVI
pristine
soil,
As(V)-reducing
bacteria
contributed
greater
SOM-depleted
soil.
Additionally,
boosted
abundances
Fe(III)-
such
as
Bacillus
Ammoniphilus
soils,
which
enhanced
dissimilatory
arsenate
Thus,
this
work
highlighted
importance
remediation
As-contaminated
ZVI/BC.
Graphical
Environmental Research,
Год журнала:
2024,
Номер
249, С. 118388 - 118388
Опубликована: Фев. 7, 2024
Nowadays,
the
scarcity
of
energy
resources
is
promoting
search
for
alternative
sources,
boosting
interest
in
use
forest
lignocellulosic
residue
sector.
In
this
study,
focus
on
recovery
from
two
residues
originated
during
pruning
ornamental
trees
(Horse
Chestnut,
CI,
and
False
Acacia,
FA).
Both
conventional
flash
pyrolysis
techniques
were
applied.
The
experimental
variables
obtained
study
thermal
behaviour
thermogravimetric
analysis.
It
was
carried
out
under
5
heating
rates
kinetic
parameters
estimated
using
Flynn-Wall-Ozawa
method.
Results
denoted
higher
maximum
mass
loss
rate
values
same
release
temperature
regions
FA
experiments.
Also,
samples
had
lower
final
processes.
However,
activation
so
close
both
species.
also
linked
to
faster
reactions
according
frequency
factor
outcomes.
Conventional
a
horizontal
oven
original
design
at
25
°C/min,
750
°C
60
min
permanence
that
temperature;
tested
850
°C.
these
processes,
three
fractions
obtained:
bio-char,
bio-oil
gas.
physicochemical
attributes
bio-chars
suggested
their
potential
utility
as
biofuels
(28.4–29.8
MJ/kg),
adsorbent
precursors
or
soil
additives.
bio-oils
dominant
monoaromatic
hydrocarbons
nature,
with
phenols
being
most
abundant
(≥60%),
while
contain
mainly
polycyclic
aromatic
hydrocarbons.
gases
contained
up
vol%
CO2;
high
combustible
gas
content
(CO,
CH4,
H2)
low
CO2
(<25
vol%).
As
result,
calorific
value
(18.06
MJ/kg)
exhibited
threefold
increase
compared
produced
through
(6.04
MJ/kg).
Cuadernos de Educación y Desarrollo,
Год журнала:
2025,
Номер
17(1), С. e7167 - e7167
Опубликована: Янв. 7, 2025
As
atividades
agrícolas
em
solos
são
bastante
agravantes
frente
a
problemas
como
desertificação,
salinização
e
perda
de
nutrientes,
prejudicando
produtividade
agrícola
o
desenvolvimento
da
região
do
semiárido.
Outro
fator
é
descarte
inadequado
resíduos
lignocelulósicos
oriundo
agroindustriais
no
meio
ambiente.
Logo,
objetivou
investigar
comportamento
biocarvão,
casca
coco
pirolisada,
solo
sertão
paraibano,
sob
aspecto
capacidade
retenção
água
nutrição,
função
tempo
incubação.
Para
tal
finalidade
realizou-se
experimentos
com
amostras
luvissolo
biocarvão
obtido
nas
condições
pirólise
300
ºC
por
2h,
taxa
aquecimento
10
ºC/min,
que
foram
avaliados
os
atributos
químicos:
pH,
CE,
CTC,
CTA,
C,
N
nutrientes
diferentes
concentrações
biochar
tempo.
O
experimento
foi
aplicado
escala
bancada
laboratório
processado
delineamento
inteiramente
casualizado
(DIC),
composto
sete
(07)
tratamentos,
subdividido
três
tempos
quatro
(04)
repetições,
incubadas
ambiente
controlado,
totalizando
84
unidades
experimentais.
Os
resultados
revelaram
na
dosagem
150
(%
p/v)
ao
contribui
melhoria
qualidade
solo,
pois
corrige
pH
ácido,
aumenta
troca
catiônica,
além
agregar
micronutrientes
reter
nutrientes.
Agronomy,
Год журнала:
2025,
Номер
15(3), С. 589 - 589
Опубликована: Фев. 27, 2025
The
effect
of
biochar
addition
on
enzyme
stoichiometry
and
regulatory
mechanisms
in
saline-alkali
soil
is
still
vague.
We
studied
how
five
years
(2018–2023)
applying
10
t
ha−1
yr−1
influences
soil’s
chemical
microbial
properties,
element
utilization
efficiency,
resource
limitations
the
Tarim
River
basin.
Low,
medium,
high
nitrogen
fertilization
(kg
N
ha−1)
irrigation
(W)
(mm)
with
or
without
(B)
were
as
follows:
low
(LNLW,
100/140),
mid
(MNMW,
200/220),
(HNHW,
300/320),
LNLWB,
MNMWB,
HNHWB.
Biochar
application
(LNLWB,
HNHWB)
increased
organic
carbon
(+61%,
+55%,
+59%),
total
(+9%,
+16%,
+8%),
phosphorus
(+6%,
+5%,
+27%),
(+75%,
+86%,
+28%)
P
use
efficiency
(+60%,
+45%,
but
decreased
biomass
(−6%,
−29%,
−45%),
−7%,
−7%).
alleviated
C
limitation
MNMW
HNHW.
In
conclusion,
a
1/3
reduction
compared
HNHW
(MNMW),
can
greatly
alleviate
improve
fertility
saline-alkaline
soils.
