Elementa Science of the Anthropocene,
Год журнала:
2021,
Номер
9(1)
Опубликована: Янв. 1, 2021
Agricultural
practices
such
as
fertilization
considerably
influence
soil
greenhouse
gas
fluxes.
However,
the
effects
of
on
gases
fluxes
remain
unclear
in
tea
when
nitrogen
is
low.
In
present
study,
CO2
and
CH4
under
various
treatments
were
investigated
during
a
50-day
period.
The
experiment
consisted
five
treatments:
no
fertilizer
(CK),
single
(urea,
N),
oilseed
rape
cake
(R),
+
(2:1,
NR1),
(1:2,
NR2).
proportion
NR1
NR2
was
determined
by
content
fertilizer.
results
revealed
that
application
had
significant
effect
flux.
addition
significantly
increased
emissions
through
enhanced
microbial
biomass
carbon
(MBC).
Additionally,
directly
proportional
to
amount
(C)
All
minor
sinks
for
except
treatment
NR1.
Specifically,
cumulative
higher
than
rest
three
treatments,
which
implies
urea
reduced
capability
oxidation
soil.
Structural
equation
models
indicated
flux
positively
correlated
with
dissolved
organic
carbon,
MBC
pH,
while
mineral
main
factor
affecting
Overall,
promoted
C
sequestration
but
inevitably
emissions.
Agronomy,
Год журнала:
2021,
Номер
11(5), С. 977 - 977
Опубликована: Май 14, 2021
Due
to
the
growing
costs
of
agricultural
production
and
need
protect
environment,
there
has
been
a
intensify
activities
leading
an
increase
in
effectiveness
natural
biological
processes.
These
measures
should
biodiversity
enable
adaptation
microorganisms
protection
plants
soils
against
background
concept
sustainable
development.
The
soil
is
important
environment
which
many
elements
are
transformed,
including
nitrogen
necessary
for
proper
yielding
plants.
aim
article
present
microbiological
aspect
transformation,
starting
with
review
historical
findings
then
discuss
progress
latest
developments
that
have
contributed
detailed
understanding
biochemical
reactions
occurring
during
transformation
soil.
Moreover,
study
current
state
knowledge
on
dynamics
uptake
conversion
by
various
species
relationship
between
activity
also
includes
information
possibility
using
biostimulants
supporting
plant
growth
(PGPR)
effects
phytopathogens.
Global Change Biology,
Год журнала:
2023,
Номер
30(1)
Опубликована: Ноя. 9, 2023
Abstract
Identifying
tipping
points
in
the
relationship
between
aridity
and
gross
nitrogen
(N)
cycling
rates
could
show
critical
vulnerabilities
of
terrestrial
ecosystems
to
climate
change.
Yet,
global
pattern
N
response
across
remains
unknown.
Here,
we
collected
14,144
observations
from
451
15
N‐labeled
studies
used
segmented
regression
identify
threshold
responses
soil
process‐related
variables
index
(AI),
which
decreases
as
increases.
We
found
on
a
scale
that
increasing
reduced
nitrate
consumption
but
increased
nitrification
capacity,
mainly
due
microbial
biomass
carbon
(MBC)
(MBN)
pH.
Threshold
production
retention
was
observed
ecosystems.
In
croplands,
extractable
were
inhibited
with
below
AI
~0.8–0.9
ammonia‐oxidizing
archaea
bacteria,
while
opposite
favored
above
this
threshold.
grasslands,
mineralization
immobilization
decreased
~0.5
MBN,
true
forests,
stimulated
~1.0
C/N
ratio,
ammonium
~1.3
total
MBC/MBN
ratio.
Soil
dissimilatory
reduction
globally
forests
when
~1.4
passed.
Overall,
suggest
any
projected
increase
change
is
likely
reduce
plant
availability
arid
regions
enhancing
it
humid
regions,
affecting
provision
ecosystem
services
functions.
International Journal of Environmental Research and Public Health,
Год журнала:
2020,
Номер
17(11), С. 3850 - 3850
Опубликована: Май 29, 2020
Heavy
metal
contamination
is
currently
a
major
environmental
concern,
as
most
agricultural
land
being
polluted
from
municipal
discharge.
Among
various
other
pollutants,
cadmium
(Cd),
one
of
the
harmful
heavy
metals,
enters
into
food
chain
through
irrigation
crops
with
an
industrial
effluent.
In
present
study,
pot
experiment
was
designed
to
assess
effect
different
nitrogen
(N)-fertilizer
forms
in
phytoremediation
Cd
Solanum
nigrum
L.
Two
types
N
fertilizers
(NH4NO3
and
urea)
were
applied
soil
ratios
(0:0,
100:0,
0:100,
50:50
NH4NO3
urea,
individually)
along
levels
(0,
25,
50
mg
kg−1).
The
plants
harvested
70
days
after
sowing
seeds
pots.
Cadmium
significantly
inhibited
growth
leaves
roots
S.
plants.
also
induced
oxidative
stress;
however,
application
N-fertilizers
increased
plant
biomass
by
inhibiting
stress
enhancing
antioxidants’
enzymatic
activities.
greatest
observed
urea-treated
compared
NH4NO3-treated
addition,
urea-fed
accumulated
higher
concentrations
than
NH4NO3-fed
It
concluded
that
urea
helpful
for
better
under
stress.
Thus,
optimum
concentration
might
be
effective
metals
nigrum.
Elementa Science of the Anthropocene,
Год журнала:
2021,
Номер
9(1)
Опубликована: Янв. 1, 2021
Agricultural
practices
such
as
fertilization
considerably
influence
soil
greenhouse
gas
fluxes.
However,
the
effects
of
on
gases
fluxes
remain
unclear
in
tea
when
nitrogen
is
low.
In
present
study,
CO2
and
CH4
under
various
treatments
were
investigated
during
a
50-day
period.
The
experiment
consisted
five
treatments:
no
fertilizer
(CK),
single
(urea,
N),
oilseed
rape
cake
(R),
+
(2:1,
NR1),
(1:2,
NR2).
proportion
NR1
NR2
was
determined
by
content
fertilizer.
results
revealed
that
application
had
significant
effect
flux.
addition
significantly
increased
emissions
through
enhanced
microbial
biomass
carbon
(MBC).
Additionally,
directly
proportional
to
amount
(C)
All
minor
sinks
for
except
treatment
NR1.
Specifically,
cumulative
higher
than
rest
three
treatments,
which
implies
urea
reduced
capability
oxidation
soil.
Structural
equation
models
indicated
flux
positively
correlated
with
dissolved
organic
carbon,
MBC
pH,
while
mineral
main
factor
affecting
Overall,
promoted
C
sequestration
but
inevitably
emissions.
