Heliyon,
Journal Year:
2024,
Volume and Issue:
10(21), P. e40128 - e40128
Published: Nov. 1, 2024
Phosphorus
(P)
deficiency
is
one
of
the
major
constraints
for
sustainable
crop
production
in
calcareous
soils.
This
study
aimed
to
elucidate
key
soil
characteristics
modulating
variability
Olsen
P
these
typical
A
comprehensive
sampling
initiative
(1.5
samples
per
hectare)
was
conducted
on
a
100-ha
farm,
considering
31
attributes
that
included
physical
and
chemical
properties,
geographic
attributes.
Three
machine
learning
algorithms-partial
least
squares
regression
(PLSR),
random
forest
(RF),
cubist
(CR)-were
employed
understand
variables
controlling
P.
Furthermore,
same
data
set
used
spatially
map
variations
levels
using
ordinary
kriging.
The
results
revealed
factors,
specifically
exchangeable
manganese
zinc,
cation
exchange
capacity,
carbonate,
played
crucial
role
levels.
Among
models,
best
performing
model
RF
(R
mLife,
Journal Year:
2024,
Volume and Issue:
3(1), P. 21 - 41
Published: March 1, 2024
Abstract
The
incredibly
complex
soil
microbial
communities
at
small
scales
make
their
analysis
and
identification
of
reasons
for
the
observed
structures
challenging.
Microbial
community
structure
is
mainly
a
result
inoculum
(dispersal),
selective
advantages
those
organisms
under
habitat‐based
environmental
attributes,
ability
colonizers
to
sustain
themselves
over
time.
Since
protective,
its
inhabitants
have
long
adapted
varied
conditions,
significant
portions
are
likely
stable.
Hence,
substantial
portion
will
not
correlate
often
measured
attributes.
We
suggest
that
drivers
be
ranked
on
basis
importance
fundamental
needs
microbes:
(i)
supply
energy,
i.e.,
organic
carbon
electron
acceptors;
(ii)
effectors
or
stressors,
pH,
salt,
drought,
toxic
chemicals;
(iii)
macro‐organism
associations,
plants
seasonality,
animals
fecal
matter,
fauna;
(iv)
nutrients,
in
order,
N,
P,
probably
lesser
importance,
other
micronutrients,
metals.
relevance
also
varies
with
spatial
time
scales,
example,
aggregate
field
regional,
persistent
dynamic
populations
transcripts,
extent
phylogenetic
difference,
hence
phenotypic
differences
organismal
groups.
present
summary
matrix
provide
guidance
which
important
particular
studies,
special
emphasis
wide
range
temporal
illustrate
this
genomic
population
(rRNA
gene)
data
from
selected
studies.
