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
Journal of Applied Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Abstract
Soil
nitrogen
status
is
tightly
related
to
vegetation
productivity
and
ecosystem
carbon
sequestration.
Therefore,
how
increasing
plant
species
diversity
(PSD)
during
restoration
or
afforestation
affects
soil
pool
would
ultimately
determine
its
effects
on
Though
diversifying
has
been
found
benefit
accumulation,
it
influences
microbial
necromass
(MNN),
which
a
major
constituent
of
pool,
remains
unexplored.
Forty‐five
plots
with
different
PSD
were
selected
in
subtropical
forest
the
being
calcareous.
MNN
was
indexed
by
amino
sugars
growth,
use
efficiency,
other
biotic
abiotic
variables
simultaneously
measured
explore
influence
pool.
Increasing
significantly
(
p
<
0.05)
stimulated
growth
contents
fungal,
bacterial,
total
MNN,
but
only
marginally
=
0.07)
enhanced
efficiency.
Structural
equation
modelling
revealed
that
PSD‐stimulated
content
enhancing
biomass
through
three
paths,
is,
promoting
via
availability
relative
abundance
copiotrophic
taxa,
inputs
plant‐derived
available
substrates,
improving
mineral
protection
elevating
exchangeable
calcium
magnesium
levels.
However,
did
not
alter
contribution
likely
owing
proportional
increase
organic
marginal
Synthesis
applications
:
These
findings
highlight
an
effective
measure
for
accumulation.
Considering
importance
supporting
sequestration,
current
study
advocates
incorporation
afforestation.
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(3), P. 510 - 510
Published: Feb. 20, 2025
Calcareous
soils,
prevalent
in
arid
and
semi-arid
regions,
often
limit
agricultural
productivity
due
to
their
alkaline
nature
poor
nutrient
availability.
This
study
assessed
the
effects
of
mineral
sulfur
(312
kg
ha−1),
nano-sulfur
(12,
24,
36
compost
(4.8
tons
ha−1)
on
physical
chemical
properties
saline
calcareous
soils
impact
maize
wheat
yields.
The
field
experiment
new
extended
agriculture
Mallawy,
Egypt,
utilized
a
randomized
complete
block
design.
results
showed
that
treatments
outperformed
sulfur.
Specifically,
combination
ha−1
with
4.8
improved
key
soil
properties,
including
bulk
density,
porosity,
hydraulic
conductivity.
treatment
also
significantly
reduced
pH,
electrical
conductivity,
exchangeable
sodium
while
enhancing
availability
essential
nutrients
such
as
nitrogen
(N),
phosphorus
(P),
potassium
(K),
total
sulfate
(SO42−).
These
enhancements
health
led
notable
increases
both
yields,
well
better
crop
uptake.
findings
suggest
nano-sulfur,
when
used
conjunction
compost,
is
highly
effective
amendment
for
improving
productivity,
promoting
sustainable
practices
regions.
provides
promising
alternative
excessive
fertilizers,
fostering
long-term
sustainability.
Kastamonu University Journal of Forestry Faculty,
Journal Year:
2024,
Volume and Issue:
24(1), P. 22 - 40
Published: March 28, 2024
Aim
of
study:
This
study
investigated
the
possible
effects
soil
penetration
resistance
on
properties
and
tree
physiology
in
recreational
area
soils.
Area
It
was
studied
Açık
Maslak
Kadıdağı
areas
Kastamonu.
Material
methods:
Some
were
determined
395
samples
from
park,
road,
control,
picnic
each
area.
At
61
points,
measured
with
a
penetrometer.
physiological
fresh
needle
42
trees.
Main
results:
Soil
control
ranges
1.6
MPa
to
2.1
MPa,
medium
compaction,
while
other-use
high
compaction
ranged
2.03
3.75
MPa.
The
linearly
decreased
increasing
organic
matter
permeability
values.
In
contrast,
increased
bulk
density.
Additionally,
all
tree’s
not
found
be
statistically
significant
(P>0.05).
Research
highlights:
Depending
use,
it
observed
that
less
effective
for
matter,
permeability,
density
moisture
content.
However,
some
chemical
compounds
trees
did
show
trend
resistance.
Our
findings
moderate
soils
often
significantly
affects
visitor
or
trampling
by
visitors,
which
can
lead
degradation