Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Дек. 19, 2024
Excessive
use
of
chemical
fertilizers
and
extensive
farming
can
degrade
soil
properties
so
that
leading
to
decline
in
crop
yields.
Combining
plant
growth-promoting
rhizobacteria
(PGPR)
with
biochar
(BC)
may
be
an
alternative
way
mitigate
this
situation.
However,
the
proportion
PGPR
BC
at
which
yield
improved,
as
well
improvement
effect
extent
on
different
eco-geographic
region
crops,
remain
unclear.
This
research
used
cabbage
[
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Март 11, 2024
Rational
fertilization
is
the
main
measure
to
improve
crop
yield,
but
there
are
differences
in
optimal
effects
of
nitrogen
(N),
phosphorus
(P)
and
potassium
(K)
rationing
exhibited
by
same
species
different
regions
soil
conditions.
In
order
determine
optimum
ratio
for
high
yield
Sapindus
mukorossi
western
Fujian
provide
scientific
basis.
We
carried
out
experimental
design
with
ratios
N,
P
K
investigate
on
yield.
leaf
physiology
properties.
Results
showed
that
reached
highest
value
(1464.58
kg
ha
-1
)
at
N
2
treatment,
which
increased
1056.25
compared
control.
There
were
significant
responses
properties
physiological
factors
treatments.
Factor
analysis
integrated
scores
characteristic
under
treatment
highest,
effectively
improved
fertility
traits.
The
a
highly
linear
positive
correlation
(r=0.70,
p
<0.01).
Passage
available
content,
organic
carbon
area
index
key
affect
RDA
most
important
recommend
was
0.96Kg
0.80Kg
0.64Kg
per
plant.
Reasonable
can
traits,
while
excessive
has
negative
fertility,
This
study
provides
theoretical
support
cultivation
woody
oil
seed
species.
Summary
Silicon
(Si)
has
been
hypothesized
to
be
a
metabolically
cheaper
substitute
for
carbon‐based
cell
wall
components
support
leaves.
However,
how
the
biomechanical
function
of
Si,
deposited
as
amorphous
silica,
differs
from
remains
untested.
Here,
we
tested
hypothesis
that
species
with
higher
leaf
Si
concentrations
have
stiffer
but
more
brittle
lamina.
We
measured
mechanical
properties,
including
modulus
elasticity
(
E
),
tensile
strength
σ
max
and
maximum
strain
ε
tissue
density,
33
deciduous
broad‐leaved
woody
species.
Multiple
regression
results
showed
concentration,
cellulose
concentration
contributed
positively
negatively
.
By
contrast,
density
not
No
significant
contribution
lignin
properties
was
detected.
These
suggest
might
increase
stiffness
Greater
decreased
without
increasing
,
which
made
lamina
brittle.
The
brittleness
associated
explain
potential
cost
or
disadvantage
using
would
elucidate
trade‐offs
between
different
concentrations.
Elevated
leaf
silicon
(Si)
concentrations
improve
drought
resistance
in
cultivated
plants,
suggesting
Si
might
also
performance
of
wild
species.
Tropical
tree
species,
for
instance,
take
up
substantial
amounts
Si,
and
varies
markedly
at
local
regional
scales,
consequences
seedling
resistance.
Yet,
whether
elevated
improves
tropical
forests
is
unknown.
To
manipulate
concentrations,
seedlings
seven
species
were
grown
Si-rich
-poor
soil,
before
exposing
them
to
the
forest
understorey.
Survival,
growth
wilting
monitored.
did
not
survival
any
In
one
was
reduced
previously
contrary
our
expectation.
Our
results
suggest
that
does
may
even
reduce
performance,
differences
soil
conditions
influencing
contribute
soil-related
variation
performance.
Furthermore,
are
odds
with
most
studies
on
show
alleviative
effects
crops
cannot
be
generalized
plants
natural
systems.
Horticulturae,
Год журнала:
2024,
Номер
10(8), С. 806 - 806
Опубликована: Июль 30, 2024
Silicon
plays
a
crucial
role
in
enhancing
plant
tolerance
to
various
abiotic
and
biotic
stresses,
including
drought,
salinity,
heavy
metals,
pathogen/pest
attacks.
Its
application
has
shown
promising
results
improving
stress
productivity
medicinal
plants.
This
review
synthesizes
findings
from
numerous
studies
investigating
the
mechanisms
by
which
silicon
confers
tolerance,
regulation
of
antioxidant
systems,
water
relations,
nutrient
homeostasis,
phytohormone
signaling,
stress-responsive
gene
expression.
Additionally,
it
examines
effects
supplementation
on
production
valuable
secondary
metabolites
essential
oils
can
significantly
mitigate
stress-induced
damage
plants,
medicinally
important
species
such
as
borage,
honeysuckle,
licorice,
Damask
rose,
savory,
basil,
eucalyptus.
The
deposition
cell
walls
provides
physical
reinforcement
acts
barrier
against
pathogen
invasion
insect
herbivory.
Furthermore,
fertilization
enhance
crops
under
conditions.
underscore
potential
sustainable
strategy
for
quality
changing
environmental
conditions,
highlighting
need
further
research
elucidate
molecular
underlying
silicon-mediated
practical
applications
cultivation.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Окт. 12, 2023
Silicon-based
defenses
deter
insect
herbivores
in
many
cultivated
and
wild
grass
species.
Furthermore,
some
of
these
species,
silicon
(Si)
uptake
defense
can
be
induced
by
herbivory.
Tropical
trees
also
take
up
Si
leaf
concentrations
vary
greatly
across
within
As
herbivory
is
a
major
driver
seedling
mortality
niche
differentiation
tropical
tree
understanding
anti-herbivore
pivotal.
Yet,
whether
constitutive
inducible
forest
species
remains
unknown.
We
grew
seedlings
eight
full
factorial
experiment,
including
two
levels
plant-available
soil
(-Si/+Si)
simulated
treatment
(-H/+H).
The
was
combination
clipping
application
methyl
jasmonate.
then
carried
out
multiple-choice
feeding
trials,
separately
for
each
which
leaves
were
offered
to
generalist
caterpillar
(
Frontiers in Environmental Science,
Год журнала:
2024,
Номер
12
Опубликована: Авг. 30, 2024
Phosphorus
limitation
occurs
in
many
soils
as
a
significant
amount
of
soil
P
is
retained
forms
inaccessible
to
plants,
such
bound
iron
(Fe)
minerals.
Prior
studies
have
shown
that
silicon
(Si)
can
mobilize
from
the
binding
sites
Several
extraction
methods
been
developed
account
for
different
pools.
Nevertheless,
each
those
uses
extractants
and
mechanisms
extract
pools
soils.
However,
there
no
study
comparing
presence
Si
fertilization.
We
tested
effect
on
mobility
determined
efficiency
water,
Calcium
acetate
lactate
(CAL),
Mehlich-III,
Bray
Kurtz
extracting
amorphous
silica
(ASi)
fertilization
using
two
contrasting
characteristics.
Significantly
higher
amounts
were
found
at
3%
ASi
treatments
(10
21
mg
kg
-1
)
compared
control
(4
10
water
high
low-yield
soil,
respectively
just
after
6
hours
increased
with
time.
This
may
be
explained
by
directly
competing
sorption
Fe
Using
CAL
extraction,
addition
showed
extractability.
In
contrast,
Mehlich-III
decreasing
extractability,
especially
treatment
(95
60
(115
80
high-yield
soil.
The
contents
extracts
attributed
decrease
effectiveness
while
Fe.
Our
results
not
suitable
determination
availability
since
both
also
this
limit
completeness
extraction.
Therefore,
fertilizer,
method
determine
mobilization
due
ASi.
Agronomy,
Год журнала:
2024,
Номер
14(12), С. 2970 - 2970
Опубликована: Дек. 13, 2024
Soil
available
nutrients
(SANs)
can
be
rapidly
converted,
absorbed,
and
utilized
by
crops.
The
study
of
the
spatial
distribution
variation
SANs,
as
well
their
response
to
environmental
factors,
is
crucial
for
precision
fertilization
soil
ecosystem
function
regulation.
In
this
study,
220
surface-layer
samples
(0–20
cm)
were
collected
in
2019
from
loquat
orchards
mid-low
mountain
hilly
areas
central
China
explore
effects
factors
(including
topography,
vegetation
index,
property,
climate)
on
using
a
path
analysis
model.
results
showed
that
potassium
(AK)
ammonium
nitrogen
(AN)
levels
exhibited
moderate
average
content,
which
was
123.14
mg·kg−1
119.03
mg·kg−1,
respectively,
whereas
phosphorus
(AP)
displayed
high
content
(26.78
mg·kg−1),
all
three
SANs
an
uneven
distributions.
nugget
effect
values
AK
AN
ranged
25%
75%,
indicating
variation,
those
AP
<25%,
suggesting
variation.
Furthermore,
mean
annual
precipitation
(MAP)
had
direct
positive
levels,
while
slope
indirect
through
ratio
index
(RVI),
greater
impact
than
topography.
erosion
negative
accelerating
loss
SANs.
MAP
type
(ST)
directly
affected
content.
Specifically,
sufficient
fine
facilitated
storage
conversion
soil.
Taken
together,
our
indicated
four
categories
or
geostatistical
revealed
law
area.
Our
findings
offer
theoretical
basis
valuable
references
achieving
improving
yield
quality.