Agronomy,
Journal Year:
2023,
Volume and Issue:
13(9), P. 2440 - 2440
Published: Sept. 21, 2023
Biochar
is
a
potential
solution
for
addressing
environmental
problems
related
to
excessive
nitrogen
(N).
However,
there
still
some
debate
about
the
absorption
and
desorption
of
nitrate
(NO3−-N).
Therefore,
this
study
investigated
NO3−-N
adsorption
performance
onto
biochar
biochar-soil
mixture
address
gap.
The
results
showed
that
produced
from
apple
branches
had
ability
absorb
with
an
capacity
3.51
mg·g−1.
data
fitted
well
pseudo-second-order
kinetic
model
Langmuir
model.
application
significantly
improved
soil
slow
release
NO3−-N.
While
higher
concentrations
better
supply
poorer
slow-release
effect.
Integrating
nutrient
effect,
it
recommended
control
ratio
at
34–42.75
g·g−1.
Although
unoptimized
rate
cannot
be
directly
applied
as
fertilizer
carrier
meet
commercial
standards,
modification
provides
new
possibilities
purpose.
Moreover,
compared
traditional
fertilizer,
good
stability
regeneration
performance,
alleviating
high
cost
due
price.
In
general,
has
prospects
material.
This
support
in
mitigating
associated
excess
N.
Environmental Science and Ecotechnology,
Journal Year:
2022,
Volume and Issue:
10, P. 100167 - 100167
Published: March 5, 2022
Increasing
global
population
and
decreasing
arable
land
pose
tremendous
pressures
to
agricultural
production.
The
application
of
conventional
chemical
fertilizers
improves
production,
but
causes
serious
environmental
problems
significant
economic
burdens.
Biochar
gains
increasing
interest
as
a
soil
amendment.
Recently,
more
attentions
have
been
paid
biochar-based
slow-release
(SRFs)
due
the
unique
properties
biochar.
This
review
summarizes
recent
advances
in
development,
synthesis,
application,
tentative
mechanism
SRFs.
development
mainly
undergoes
three
stages:
(i)
amendment
using
biochar,
(ii)
interactions
between
nutrients
(iii)
Various
methods
are
proposed
improve
fertilizer
efficiency
majorly
including
in-situ
pyrolysis,
co-pyrolysis,
impregnation,
encapsulation,
granulation.
Considering
distinct
features
different
methods,
integrated
promising
for
fabricating
effective
in-depth
understanding
nutrient
loading
slow
release
is
discussed
based
on
current
knowledge.
Additionally,
perspectives
challenges
potential
SRFs
described.
Knowledge
surveyed
from
this
indicates
that
applying
viable
way
promoting
sustainable
agriculture.
Biochar,
Journal Year:
2023,
Volume and Issue:
5(1)
Published: April 27, 2023
Abstract
To
improve
the
phosphorus
(P)
recovery
efficiency
from
livestock
wastewater,
a
novel
MgO
doped
mildewed
corn
biochar
with
thermal
pre-puffing
treatment
(Mg-PBC)
and
without
(Mg-BC)
was
synthesized
tested.
The
thermal-puffing
pretreatment
improved
effectiveness
of
metal
soaking
dispersion.
P
time
Mg-PBC
(7
h)
significantly
shorter
than
that
Mg-BC
(12
h).
Moreover,
showed
higher
capacity
(241
mg
g
−1
)
(96.6
).
fitted
to
Thomas
model
90.7
,
which
4
times
(22.9
under
column
test
conditions.
mechanisms
involved
in
included
precipitation,
surface
complexation,
electrostatic
interaction.
After
adsorption,
both
relatively
low
regeneration
abilities.
loaded
(Mg-BC-P)
(Mg-PBC-P),
later
particularly,
obviously
increased
available
content
promoted
plant
growth.
release
Mg-PBC-P
treated
soil,
while
it
decreased
fertilizer
soil.
A
cost–benefit
analysis
revealed
greatly
profit
−0.66
5.90
US$
kg
.
These
findings
highlight
biomass
is
feasible
produce
modified
recover
can
be
used
as
slow-release
fertilizer.
Graphical
