The
extensive
mining
of
bastnasite
(CeFCO3)
has
caused
pollution
lanthanum
(La),
cerium
(Ce),
and
fuorine
(F)
in
the
surrounding
farmland
soil,
severely
threatening
safety
soil
ecosystem.
However,
interaction
effects
various
chemical
fractions
La,
Ce,
F
on
composition
microbial
communities
are
unclear.
In
our
study,
high-throughput
sequencing
was
performed
based
pot
experiments
four
types
combined
soils,
i.e.,
La
+
Ce
(LC),
(CF),
(LF),
(LCF),
concentration
ranges
these
three
elements
20–240,
40–450,
150–900
mg
kg–1,
respectively.
improved
Tessier
method
used
to
investigate
variations
compositions.
result
showed
residual
form
(La_RES)
displayed
restraint
Abditibacteriota,
leading
its
undetected
level
highest
LC-polluted
whereas
promoted
relative
abundance
microbes
(Planctomycetota,
Elusimicrobiota,
Gemmatimonadota,
Rozellomycota)
by
more
than
80%;
exchangeable
organic-bound
forms
as
well
iron-manganese-bound
were
identified
stress
factors
for
sensitive
bacteria
(e.g.,
WS4,
RCP2-54,
Monoblepharomycota)
CF-polluted
soils;
LF-polluted
water-soluble
most
toxic
effect
Nitrospirota,
FCPU426,
decreased
while
La_RES
GAL15,
showing
decline
80%
LCF-polluted
soils.
Our
study
revealed
both
inhibition
promotion
element
growth
communities,
providing
a
certain
experimental
evidence
support
further
exploration
treatment
environmental
elements.
Agricultural Water Management,
Год журнала:
2024,
Номер
297, С. 108816 - 108816
Опубликована: Апрель 23, 2024
Global
water
scarcity
has
become
a
non-negligible
problem
that
threatens
the
sustainable
development
of
agriculture.
In
order
to
alleviate
contradiction
between
grain
demand
and
resource
constraints,
it
is
particularly
important
explore
appropriate
irrigation
strategy
so
as
synergistically
increase
yield
use
efficiency
(WUE).
The
AquaCrop
model
were
locally
calibrated
simulate
optimal
amount
for
different
hydrological
years
using
four-year
field
measurements
(from
2017
2020)
maize
with
two
levels
(2400
m3/ha
4800
m3/ha)
in
Shihezi,
Xinjiang,
China.
On
this
basis,
regulated
deficit
(RDI)
strategies
optimized
based
on
variation
consumption
soil
content
(SWC)
during
growth
period.
Results
suggest
under
static
(fixed
proportion
growing
season)
wet,
normal,
dry
was
4733
m3/ha,
5381
6090
respectively.
dynamic
strategies,
RDI4
(65%
Ir
(the
required
each
interval)
at
R2-R5
stage)
RDI5
(85%
V6-V12
stage
85%
can
save
while
maintaining
high
yield.
Under
premise
basically
(18Mg/ha),
compared
year's
reduce
by
4.33%
2017;
although
slightly
increased
2.77%
2018,
could
be
3.65%;
2019,
49.44%
water,
will
24.13%
2020.
From
study,
recommended
single
65%
R2
R5
stages
or
V6
V12
(18
Mg/ha).
Agricultural Water Management,
Год журнала:
2024,
Номер
302, С. 109001 - 109001
Опубликована: Авг. 9, 2024
Saline
soils
pose
complex
environmental
challenges
that
limit
fruit
tree
root
function.
Understanding
the
mechanisms
by
which
factors
drive
traits
in
zone
soil
is
crucial
for
improving
productivity
through
irrigation-based
regulation
of
structure.
This
study
aimed
to
identify
primary
drivers
and
driving
environment
on
traits,
as
influenced
water
content
saline
trees.
A
2-year
field
experiment
was
conducted
Korla,
Xinjiang,
investigate
effects
physicochemical
properties,
enzyme
activities,
nutrients
active
state
trace
elements
setting
different
irrigation
gradients
(Low:
3750
m
3
ha
−1
;
Moderate:
5250
High:
6750
).
Compared
low-irrigation
treatment,
results
showed
high-irrigation
treatment
decreased
electrical
conductivity
pH
21.6–30.5
%
1.4–5.5
%,
respectively,
increased
organic
matter,
available
phosphorus,
potassium
4.4–5.1
11.7–17.6
14.8–34.6
respectively.
Additionally,
catalase,
urease,
phosphatase
activities
30.0–33.1
21.6–22.0
30.0–30.2
enhancing
amount
promote
nutrient
migration
deeper
layers
providing
a
stable
suitable
main
zone.
Concurrently,
total
dataset
(TDS)
established
using
four
categories
15
indicators,
including
nutrients,
elements,
0–80
cm
soil.
The
machine
learning
models
were
used
screen
reveal
mechanism
traits.
Random
Forest
model
identified
phosphatase,
effective
temperature
with
an
increase
MSE
(%)
range
(10.3–15.6
%),
AP
(6.8–10.9
(8.3–16.9
%).
water-mediated
had
positive
effect
Therefore,
this
provides
theoretical
basis
programs
•
·ha
increasing
SOM
40–80
range.
AP,
T
are
Water-mediated
positively
affect
Foods,
Год журнала:
2025,
Номер
14(5), С. 803 - 803
Опубликована: Фев. 26, 2025
Red
jujube
is
a
nutritious
food,
known
as
the
"king
of
all
fruits".
The
quality
Chinese
red
closely
associated
with
its
place
origin.
To
classify
more
correctly,
based
on
combination
adaptive
boosting
(Adaboost)
and
common
vectors
linear
discriminant
analysis
(CLDA),
Adaboost-CLDA
was
proposed
to
near-infrared
(NIR)
spectra
samples.
In
study,
NIR-M-R2
spectrometer
employed
scan
from
four
different
origins
acquire
their
NIR
spectra.
Savitzky-Golay
filtering
used
preprocess
CLDA
can
effectively
address
"small
sample
size"
problem,
achieve
an
extremely
high
classification
accuracy
rate;
thus,
performed
for
feature
extraction
Finally,
K-nearest
neighbor
(KNN)
Bayes
served
classifiers
identification
Experiments
indicated
that
achieved
highest
in
this
system
compared
other
algorithms.
This
demonstrates
spectroscopy
significantly
enhances
accuracy,
providing
effective
method
identifying
geographical
origin
jujube.
