Agriculture,
Год журнала:
2024,
Номер
14(11), С. 1919 - 1919
Опубликована: Окт. 29, 2024
Phosphorus
(P)
enrichment
frequently
occurs
in
the
soil
used
greenhouse
vegetable
production
(GVP).
Minimizing
application
of
P
fertilizer
represents
a
crucial
approach
to
mitigating
accumulation
and
enhancing
its
utilization
efficiency.
However,
changes
bacterial
communities
turnover
mechanism
fractions
related
cycling
after
reduction
are
still
unclear.
To
unravel
these
complexities,
we
devised
three
experimental
treatments:
conventional
nitrogen
(N),
P,
potassium
(K)
(N1P1K1);
N
K
without
(N1P0K1);
no
(N0P0K0).
These
experiments
were
conducted
elucidate
effects
on
cucumber
plant
growth,
fractions,
phoD-harboring
community
P-rich
soil.
The
results
showed
that
there
significant
differences
between
N1P1K1
N1P0K1
treatments
terms
yield,
uptake,
values
for
N0P0K0
treatment
significantly
lower
than
those
treatment.
In
state
depletion
(N0P0K0,
N1P0K1),
main
sources
Resin-Pi,
NaHCO3-Pi,
NaHCO3-Po,
NaOH-Pi.
contents
NaOH-Po
CHCl-Po
increased
significantly.
Without
fertilizer,
alkaline
phosphatase
(ALP)
activity,
phoD
gene
abundance,
diversity
increased.
abundance
Ensifer
was
8
10.58
times
treatment,
respectively.
Additionally,
total
phosphorus
(TP)
available
(AN)
key
factors
affecting
community,
while
Shinella,
Bradyrhizobium
driving
change
NaHCO3-Pi
NaOH-Pi
crop
yield.
Therefore,
reducing
will
increases
phoD-gene-harboring
promote
organic
mineralization,
thus
maintaining
optimal
Abstract
Phosphorus
(P)
is
essential
for
basic
natural
processes
and
can
limit
the
productivity
of
entire
ecosystems.
However,
agricultural
lands
worldwide
currently
suffer
from
P
deficiency.
The
application
fertilizers
not
only
poorly
utilized,
but
also
results
in
gradual
accumulation
P.
Biochar,
a
substance
produced
by
pyrolysis
biomass
under
low
oxygen
levels,
frequently
used
as
soil
amendment.
It
provides
form
that
readily
available
plant
uptake,
thus
addresses
both
short-
long-term
deficiencies.
In
this
paper,
we
systematically
reviewed
relevant
studies
on
“biochar
soil”
or
P”
published
past
decade
(2013–2023).
A
synthesis
reported
revealed
analyzing
effect
biochar
through
changes
physicochemical
properties
microbial
communities
has
gradually
emerged
prominent
area
research
recent
years.
purpose
study
was
to
analyze
differential
effects
addition
availability,
including
clarification
underlying
mechanisms.
showed
although
generally
exerts
positive
there
are
differences
extent
based
conditions.
Shifting
mechanisms,
directly
increases
phosphorus
(AP)
content
soil,
indirectly
influences
availability
via
physical,
chemical,
biological
properties.
To
summarize,
affect
different
degrees
direct
indirect
pathways.
Graphical
Abstract
Phosphorus
(P)
is
a
macronutrient
that
plants
need
to
grow.
However,
most
of
the
soil’s
phosphorus
still
insoluble,
making
it
difficult
for
absorb.
This
creates
barrier
ecologically
responsible
farming
methods
and
calls
innovative
approaches
solubilization.
Solublizing
microorganisms
improve
availability
phosphorous
in
soil.
The
term
“phosphorus-solubilizing
microorganisms”
(PSMs)
describes
various
fungi
or
bacteria
divide
into
more
soluble
forms.
It
shows
how
PSMs
interact
with
their
processes
solubilize
phosphorus.
Soil
pH,
temperature,
nutrient
are
only
few
parameters
affecting
its
activity.
investigated
potential
increase
plant
absorption
use,
thereby
boosting
agricultural
yield
usage
efficiency.
use
effects
on
environment
also
evaluated.
By
using
PSMs,
farmers
may
less
chemical
fertilizers
contribute
runoff
eutrophication
waterways.
Furthermore,
soil
structure,
decrease
losses,
cycling,
all
which
health
long-term
viability
systems.
Phosphorus-solubilizing
have
enormous
promise
environmentally
land
management.
Better
availability,
greater
output,
pollution,
better
possible
outcomes
PSMs.
further
study
required
determine
best
application
strategies,
formulations,
choices
Incorporating
operations
can
potentially
environmental
sustainability
resilience.
article
will
explore
addressing
critical
challenges,
including
erosion,
runoff,
sustainable
practices,
resource
conservation.
Graphical
Drought
has
a
significant
impact
on
ecosystem
functions,
especially
the
biogeochemical
cycling
of
phosphorus
(P),
which
is
crucial
nutrient
for
plant
growth
and
productivity.
Despite
its
importance,
effects
different
drought
scenarios
soil
P
availability
remain
poorly
understood
in
previous
studies.
This
study
simulated
conditions
tropical
soils
using
maize
as
test
crop
under
varying
field
capacity
(FC)
levels
(100%,
80%,
60%,
40%,
20%)
over
60-day
pot
experiment.
uptake
biomass
decreased
significantly
lower
FC
level.
was
highest
at
FC100
(5
g
kg-¹)
lowest
FC20
(3.5
kg-¹).
Similarly,
greatest
(70
plant-¹)
declined
to
35
plant-¹
FC20,
underscoring
adverse
growth.
The
results
showed
substantial
increase
calcium-associated
(HClD-Pi),
reaching
45%
FC20.
Conversely,
labile
inorganic
fractions
(NaHCO₃-Pi
NaOH-Pi)
significantly,
from
14.73
6.2
mg
kg-¹
29.4
17.7
kg-¹,
respectively,
compared
FC100.
Organic
(NaHCO₃-Po,
NaOH-Po)
increased
by
6
2.4
times,
treatments,
while
HClc-Po
also
elevated
drier
conditions.
These
transformations
were
attributed
changes
pH
calcium
content,
favoring
stabilization
HClD-Pi.
disrupted
replenishment
solution,
reducing
bioavailability,
though
phosphatase
activity
enhanced
organic
release.
Pearson's
correlation
analysis
revealed
positive
associations
between
moderately
(NaHCO₃-Pi,
NaOH-Pi,
HClD-Pi)
elements
(Ca,
Al,
Fe).
RDA
highlighted
link
reduced
P,
strongly
associated
with
fractions.
findings
demonstrate
drought's
cycling,
dynamics.
Agronomy,
Год журнала:
2024,
Номер
14(3), С. 426 - 426
Опубликована: Фев. 22, 2024
It
is
crucial
to
comprehend
how
fertilization
and
cultivation
management
alter
the
composition
of
dissolved
organic
carbon
(DOC)
microbial
communities
regulate
biogeochemical
cycling
soil
nutrients
mitigate
adverse
impacts
on
soil–water
quality.
Based
15
years
long-term
field
trials
conducted
in
purple
farmland
with
a
slope
15°
southwestern
China,
following
five
treatments
were
examined:
CK
(no
fertilizer
was
applied),
T1
(NPK
plus
manure
downslope
cultivation),
T2
T3
(1.5-fold
NPK
T4
contour
cultivation).
Soil
samples
obtained
from
summer
maize
at
two
depths
(0–10
10–20
cm)
rhizospheric
soil,
changes
DOC
content,
UV–visible
(UV–Vis)
absorptivity,
phospholipid
fatty
acids
(PLFAs)
assessed.
Our
results
revealed
significant
change
content
fertilization,
especially
T1,
as
it
136.0%,
179.4%,
132.2%
higher,
respectively,
than
that
0–10
cm
soil.
Fertilization
decreased
UV–Vis
absorptivity
variables
(i.e.,
SUVA254,
SUVA260,
SUVA400,
SUVA465,
SUVA665,
C:C
ratio)
raised
E4:E6
ratio
(fulvic
acid
humic
DOC),
regardless
depth
compared
those
CK,
respectively.
significantly
increased
total
PLFA
selected
groups
relative
CK.
Among
treatments,
by
50.6%,
59.0%,
46.2%,
The
community
structure
(T4)
greater
(T2).
Random
forest
analysis
(RFA)
SOC
likely
primary
for
regulating
PLFAs
examined
Partial
least
squares
path
modeling
(PLS-PM)
further
indicated
among
compositions
had
effects
These
observations
suggested
are
effective
approaches
altering
sloping
farmland.
