Abstract.
Mineral
P
is
an
increasingly
scarce
resource
and
therefore
the
mobilisation
of
legacy
soil
must
be
optimised
to
maintain
fertility.
We
have
used
isotopic
exchangeability
probe
lability
native
in
four
contrasting
soils
following
acidification
addition
carboxylate
anions
(citrate
oxalate)
suspension.
Acidification
tended
cause
immobilisation
P,
but
this
was
attributed
a
salt
effect.
Addition
both
citrate
oxalate
led
marked
increases
P.
This
would
result
from
competition
between
phosphate
ions
at
adsorption
sites
chelation
charge
compensating
cations.
The
effects
were
similar
each
level
acidification,
indicating
that
largely
additive.
not
true
for
most
calcareous
where
calcium
may
been
precipitated
highest
addition.
Promoting
by
amendment
or
use
crops
exude
large
amounts
such
organic
promising
approach
improve
availability.
Soil Use and Management,
Год журнала:
2022,
Номер
38(3), С. 1340 - 1369
Опубликована: Апрель 10, 2022
Abstract
The
burgeoning
global
market
for
soil
microbial
inoculants
use
in
agriculture
is
being
driven
by
pressure
to
increase
sustainable
crop
production
managing
pests
and
diseases
without
environmental
impacts.
Microbial
inoculants,
based
predominantly
on
bacteria
fungi,
are
applied
as
alternatives
conventional
inorganic
fertilizers
(biofertilizers)
or
carry
out
specific
functions
including
biocontrol
of
(biopesticides),
bioremediation
enhancement
characteristics.
While
some
such
rhizobia
have
a
long
successful
history
use,
others
performed
inconsistently
the
field
failed
live
up
their
promise
suggested
laboratory
testing.
A
more
precise
understanding
ecology
modes
action
inoculant
strains
key
optimizing
efficacy
guiding
targeted
situations
where
they
address
limitations
production.
This
will
require
greater
collaboration
between
science
disciplines,
microbiology,
plant
science,
molecular
biology
agronomy.
Inoculants
must
be
produced
formulated
ensure
effective
establishment
practicality
implementation
alongside
existing
cropping
practices.
New
approaches
strain
selection
construction
beneficial
consortia
should
lead
efficacious
products.
Extensive
rigorous
evaluation
under
range
conditions
has
rarely
been
undertaken
urgently
needed
validate
emerging
products
underpin
growers,
especially
that
largely
unregulated
at
present.
Heliyon,
Год журнала:
2023,
Номер
9(6), С. e16134 - e16134
Опубликована: Май 17, 2023
The
world's
population
is
increasing
and
anticipated
to
spread
10
billion
by
2050,
the
issue
of
food
security
becoming
a
global
concern.
To
maintain
security,
it
essential
increase
crop
productivity
under
changing
climatic
conditions.
Conventional
agricultural
practices
frequently
use
artificial/chemical
fertilizers
enhance
productivity,
but
these
have
numerous
negative
effects
on
environment
people's
health.
address
issues,
researchers
been
concentrating
substitute
fertilization
methods
for
many
years,
biofertilizers
as
crucial
part
are
quickly
gaining
popularity
all
over
globe.
Biofertilizers
living
formulations
made
indigenous
plant
growth-promoting
rhizobacteria
(PGPR)
which
substantial,
environment-friendly,
economical
amassing
enhancing
development
either
directly
or
indirectly,
renewable
source
nutrients
sustainable
agronomy.
review
aims
provide
comprehensive
overview
current
knowledge
microbial
inoculants
biofertilizers,
including
their
types,
mechanisms
action,
challenges,
limitations
associated
with
inoculants.
In
this
review,
we
focused
application
fields
in
growth
performing
several
activities
like
nitrogen
fixation,
siderophore
production,
phytohormone
nutrient
solubilization,
facilitating
easy
uptake
plants.
Further,
discussed
indirect
mechanism
PGPRs,
developing
induced
system
resistance
against
pest
diseases,
biocontrol
agent
phytopathogens.
This
article
presents
brief
outline
ideas
uses
improving
well
discussion
challenges
The
unintended
consequences
of
introducing
nontarget
organisms
into
a
new
habitat
are
major
cause
worry
as
they
can
have
negative
impact
on
biodiversity
and
ecosystem
function.
Microbial
inoculants
typically
expected
to
targeted
effect
specific
functions
but
less
impacts
resident
microbial
population,
whereas
invasive
macroorganisms
the
focus
these
studies.
As
become
increasingly
important
for
attaining
sustainable
agricultural
productivity,
it
is
crucial
note
that
often
interact
with
native
communities,
potentially
impacting
processes.
This
chapter
will
give
broad
view
influence
some
upon
soil
population.
Plants,
Год журнала:
2024,
Номер
13(24), С. 3478 - 3478
Опубликована: Дек. 12, 2024
Phosphate
(P)
is
the
plant
macronutrient
with,
by
far,
lowest
solubility
in
soil.
In
soils
with
low
P
availability,
soil
solution
concentrations
are
low,
often
below
2
[µmol
P/L].
Under
these
conditions,
diffusive
flux,
dominant
transport
mechanism
to
roots,
severely
restricted.
sorbed
into
various
solids,
Fe/Al
oxides,
clay
minerals
and,
sometimes
overlooked,
humic
surfaces.
The
immobilization
of
result
diffusion
internal
surfaces
oxides
or
substances.
This
slow
reaction
between
and
further
reduces
availability
soil,
leading
fixation.
solubilization
root-released
carboxylates
a
promising
way
increase
acquisition
uptake
from
P-fixing
soils.
Citrate
sometimes,
oxalate
effective
respect
additional
mobilization,
which
may
help
flux
roots
increasing
rhizosphere.
mobilization
humic-associated
be
an
improve
solubility.
Not
only
orthophosphate
anions
mobilized
carboxylates,
but
also
higher
phosphorylated
inositol
phosphates,
as
main
part
esters
carboxylates.
Because
rather
strong
bonding
phosphates
solid
phase,
step
appears
essential
for
plants
acquire
inositol-P.
ecological
relevance
its
effect
on
crops
grassland
species
are,
at
best,
partially
understood.
Plant
form
cluster
such
white
lupin
(Lupinus
albus
L.)
yellow
luteus
release
high
rates
mainly
citrate
root
clusters.
These
fixed
available
accessible
do
not
satisfy
their
demand
without
mobilization.
And
make
other
mixed
cropping
systems
subsequent
crop
rotations.
probably
important
legume/grass
mixtures
forage
production.
Species
alfalfa,
red
clover
extent
deserves
research.
particular,
mostly
benefit
legume-released
unknown.
Organic
farming
require
introduction
nitrogen
(N)
legumes
system.
For
this
agricultural
system,
impact
research
task.
Plant and Soil,
Год журнала:
2022,
Номер
476(1-2), С. 117 - 131
Опубликована: Июнь 4, 2022
Abstract
This
paper
describes
a
journey
which
started
with
the
question:
why
do
farmers
reapply
phosphate?
led
to
understanding
how
phosphate
and
other
specifically
sorbed
ions,
both
cations
anions
react
soil.
Under
most
soil
conditions,
they
not
precipitate
give
specific
compounds.
Rather
are
adsorbed
onto
surface
of
particles
then
penetrate
via
diffusion
mechanisms.
The
pathways
by
move
differ
between
ion
species;
for
example
nickel
penetrates
lattice
iron
oxides
but
defects
particles.
Such
reactions
change
important
properties
Reaction
conveys
negative
charge
reacting
so
decreases
buffering
capacity
phosphate;
this
makes
subsequent
applications
more
effective.
Nor
does
diffusive
penetration
continue
unabated;
as
builds
up,
slows
virtually
stops.
These
effects
mean
that
on
long-term
fertilised
soils,
fertiliser
is
much
effective
annual
doses
(if
needed
at
all)
should
be
smaller.
I
suggest
failure
appreciate
cause
losses
from
farmland
consequent
pollution
water
bodies.
Microbiological Research,
Год журнала:
2024,
Номер
286, С. 127819 - 127819
Опубликована: Июнь 29, 2024
Beauveria
bassiana
(Bb)
is
a
widespread
entomopathogenic
fungus
widely
used
in
agriculture
for
crop
protection.
Other
than
pest
control,
fungi
belonging
to
the
B.
complex
represent
an
important
microbial
resource
agroecosystems,
considering
their
multiple
interactions
with
other
microorganisms
as
antagonists
of
phytopathogens,
or
plants
endophytic
colonizers
and
growth
promoters.
Here,
we
characterised
field
collected
commercial
isolates
relative
environmental
factors
that
affect
growth.
We
further
compared
metabolome,
potential
biocontrol
activity
tested
respectively
on
insect
Spodoptera
littoralis
against
fungal
plant
pathogen
Fusarium
oxysporum.
Our
analysis
revealed
by
high
level
inter-isolate
heterogeneity
terms
nutritional
requirements,
establishment
intra-
inter-kingdom
interactions,
nature
metabolites
produced.
Interestingly,
certain
demonstrated
preference
low
nutrient
plant-derived
media,
which
hints
at
adaptation
towards
lifestyle
over
saprophytic
one.
In
addition,
there
was
noticeable
variation
among
different
capacity
kill
S.
larvae
contact
infection
test,
but
not
intrahaemocoelic
injection
experiment,
suggesting
unique
adaptability
specific
host.
On
hand,
most
exhibited
similar
efficacy
soil-dwelling
ascomycete
F.
oxysporum
f.
sp.
lycopersici,
responsible
vascular
wilt
disease
tomato
plants,
effectively
averting
wilting.
Overall,
show
effectiveness
can
greatly
vary,
emphasising
importance
isolate
selection
consideration
use
sustainable
agriculture.
