Frontiers in Microbiology,
Год журнала:
2021,
Номер
12
Опубликована: Окт. 21, 2021
Rhizosphere
bacteria,
the
main
functional
microorganisms
inhabiting
roots
of
terrestrial
plants,
play
important
roles
in
regulating
plant
growth
and
environmental
stress
resistance.
However,
limited
information
is
available
regarding
changes
occurring
within
structure
root
microbial
community
response
mechanisms
host
plants
that
improve
adaptability
to
drought
stress.
In
this
study,
we
conducted
an
experiment
on
two
sugarcane
varieties
with
different
tolerance
levels
under
control
treatments
analyzed
rhizosphere
bacterial
communities
using
16S
rRNA
high-throughput
sequencing.
Correlation
analysis
results
clarified
influence
various
factors
structure.
Drought
reduced
diversity
sugarcane.
Interestingly,
drought-sensitive
cultivar
GT39
changed
more
than
drought-tolerant
ZZ9.
addition,
ZZ9
had
a
high
abundance
drought-resistant
bacteria
optimal
soil
water
conditions,
whereas
accumulated
large
number
only
mainly
relied
Actinobacteria
its
stress,
phylum
was
positively
correlated
acid
phosphatase
protease
levels.
contrast,
Bacilli
class
conclusion,
can
significantly
reduce
increase
rhizosphere.
The
cultivars
non-drought
conditions
factor
contributing
these
cultivars.
Moreover,
core
exudates
jointly
affect
resistance
drought.
Agricultural Water Management,
Год журнала:
2023,
Номер
288, С. 108453 - 108453
Опубликована: Авг. 11, 2023
Mulching
is
an
important
practice
to
reduce
soil
water
loss
and
improve
productivity
in
agriculture.
To
investigate
the
influence
of
dual
mulching
with
crushed
wheat
straw
padding
plastic
film
combined
different
irrigation
amounts
on
nutrients
growth
edible
sunflower,
a
field
experiment
was
conducted
Minqin
Experimental
Station
Gansu
Institute
Hydraulic
Sciences
from
2016
2018.
The
adopted
two-factor
design
four
methods:
no
(N),
(S)
at
4500
kg
ha−1,
(F),
(SF)
three
levels:
high
(H=900
m3
ha−1),
medium
(M=750
ha−1)
low
(L=600
ha−1).
results
showed
that
under
were
improved.
available
phosphorus
(AP)
content
highest
SFH
treatment,
varying
significantly
treatments
(P
<
0.05).
Soil
potassium
(AK)
alkali-hydrolyzed
nitrogen
(AHN)
contents
also
higher
SFM
treatment
than
other
treatments.
AP,
AK
AHN
decreased
depth,
greater
rate
decrease
0–40
cm
layer
40–120
layer.
Overall,
nutrient
status
improved
by
comparison
mulching,
gave
best
methods.
level
led
better
improvement
levels.
Dry
matter
yield
sunflower
varied
treatments,
yields
obtained
SFM,
SFL,
FH.
However,
plant
height,
stem
diameter,
leaf
area,
dry
weight,
head
weight
seed
treatment.
comprehensive
score
ranking
principal
component
analysis
indicated
had
planting
practice.
Therefore,
oasis
area
drought
little
rain,
it
determined
should
be
grown
method
as
optimal
conservation
tillage
through
this
study.
Agronomy,
Год журнала:
2023,
Номер
13(7), С. 1850 - 1850
Опубликована: Июль 13, 2023
In
order
to
investigate
the
comprehensive
effects
of
straw
returning
on
soil
physical
and
chemical
properties,
as
well
cotton
growth
in
Jiangsu,
China,
determine
suitable
high-yield
efficient
measures,
this
study
implemented
three
different
methods:
mulching
(SM),
incorporation
(SI),
biochar
(BC),
with
no
served
a
control
(CT).
The
aimed
assess
impact
these
straw-returning
measures
nutrients,
moisture
content,
water
storage,
deficit
status,
primary
indicators
growth.
findings
revealed
that
total
available
nutrient
storage
under
SM,
SI,
BC
showed
an
increase
11.93%,
11.15%,
32.39%,
respectively,
compared
CT.
Among
methods,
demonstrated
significant
enhancement
organic
carbon
phosphorus,
potassium.
Furthermore,
SM
exhibited
considerable
content
across
all
layers
(0–40
cm),
resulting
average
7.42
mm
Consequently,
effectively
reduced
during
development
period.
Moreover,
height
plants
was
increased
by
BC,
promoting
greatest
rate
up
66.87%.
resulted
11.17
cm
plant
Additionally,
contributed
higher
chlorophyll
leaves
at
end
Overall,
suggest
is
particularly
effective
enhancing
distribution,
especially
dry
years,
has
positive
development.
Based
results,
emerges
recommended
measure
for
improving
quality
maximizing
production
area.
