Biomass and Bioenergy,
Journal Year:
2018,
Volume and Issue:
119, P. 346 - 353
Published: Oct. 11, 2018
Addition
of
biochar
into
a
soil
changes
its
water
retention
properties
by
modifying
textural
and
structural
properties.
In
addition,
internal
micrometer-scale
porosity
that
is
able
to
directly
store
readily
plant
available
affects
This
study
shows
how
precise
knowledge
the
pore
size
distribution
can
deepen
understanding
biochar-water
interactions
in
soils.
The
willow
was
quantitatively
qualitatively
characterized
using
X-ray
tomography,
3D
image
analysis
Helium
ion
microscopy.
effect
application
on
clay
studied
conventional
curve
approach.
results
indicate
pores
biochar,
with
sizes
at
50
10
μm
(equivalent
diameter),
increased
amount
water.
After
were
detected
regimes
5–10
25
μm,
i.e.
multiplied
factor
0.5.
does
not
predict
(1:1
compatibility)
observed
moisture
characteristics.
It
likely
chemistry
morphology
affect
via
e.g.
surface
roughness
contact
angle.
induced
structure
texture
affected
However,
approach
presented
an
attractive
pathway
more
generalized
why
Agronomy,
Journal Year:
2021,
Volume and Issue:
11(5), P. 993 - 993
Published: May 17, 2021
Biochar
is
gaining
significant
attention
due
to
its
potential
for
carbon
(C)
sequestration,
improvement
of
soil
health,
fertility
enhancement,
and
crop
productivity
quality.
In
this
review,
we
discuss
the
most
common
available
techniques
biochar
production,
main
physiochemical
properties
biochar,
effects
on
including
physical,
chemical,
biological
parameters
quality
fertility,
nutrient
leaching,
salt
stress,
addition,
impacts
addition
salt-affected
heavy
metal
contaminated
soils
were
also
reviewed.
An
ample
body
literature
supports
idea
that
amended
with
has
a
high
increase
concomitant
in
structure,
use
efficiency
(NUE),
aeration,
porosity,
water-holding
capacity
(WHC),
among
other
amendments.
However,
increases
biochar-amended
are
frequently
reported
coarse-textured
sandy
compared
fine-textured
fertile
soils.
effect
microbial
community
composition
abundance.
The
negative
polluted
have
plant
growth
yield
components
such
as
aggregation
stability
can
be
ameliorated
by
application
biochar.
Moreover,
positive
been
observed
when
was
applied
organic
inorganic
amendments
fertilizers.
decrease
nitrogen
(N)
leaching
volatilization
well
NUE.
some
biomass
activity
reported.
There
evidence
sorb
retain
pesticides
long
periods
time,
which
may
result
weed
infestation
control
cost.
Field Crops Research,
Journal Year:
2019,
Volume and Issue:
235, P. 18 - 26
Published: March 2, 2019
Application
of
biochar
has
been
shown
to
increase
soil
fertility
and
enable
carbon
sequestration,
indicating
potential
for
agricultural
environmental
benefits
from
using
locally
produced
on
African
smallholder
farms.
However,
previous
studies
have
rather
short-term
little
is
known
about
the
longer-term
effects
application
crop
yields.
Biochar
contains
ash,
but
liming
effect
nutrient
release
ash
may
be
short-lasting.
To
investigate
long-term
effects,
we
set
up
a
series
field
trials
replicated
at
three
sites
in
Kenya
2006.
The
are
still
on-going
possibly
longest
sub-Saharan
Africa.
Here,
report
yield
properties
over
10
years
after
applying
biochar,
mainly
Acacia
spp.,
rate
50
+
Mg
ha−1
during
first
two
seasons.
Maize
(Zea
mays)
soybean
(Glycine
max)
were
grown
rotation,
with
or
without
inorganic
fertiliser,
was
monitored.
For
comparison
properties,
additional
plots
kept
bare
fallow.
addition
slightly
increased
porosity,
pH,
plant-available
phosphorus
water-holding
capacity.
Crop
responded
positively
all
responses
similar
mineral
i.e.,
fertiliser
additive.
seasonal
due
average
around
1.2
maize
0.4
soybean,
independently
fertilisation,
seasons
sites.
by
1.6
subsequent,
unfertilized
0.6
ha−1,
illustrating
carry-over
effect.
Most
importantly,
adding
persisted
whole
10-year
period.
Analysis
(C)
balance
topsoil
indicated
that
40%
C
apparently
lost
through
mineralization,
erosion
vertical
translocation.
Moreover,
changes
carbon/nitrogen
ratios
nitrogen
mineralization
native
organic
matter.
