Straw
return
is
considered
an
important
strategy
in
maintaining
a
strong
soil
fertility
cycle,
but
it
has
also
been
subjected
to
criticism
due
slow
decomposition.
The
effect
of
acidification
on
straw
interesting
example
"stress-on-stress"
situation.
This
study
demonstrated
that
wheat
decomposed
rapidly
during
the
first
30
days
and
then
more
slowly
at
later
stages.
Compared
with
P
K,
releases
N
C
were
rather
slower
early
stage
return.
Soil
allowed
higher
abundance
acid-tolerant
bacteria.
Although
functional
genes
related
organic
matter
degradation
predicted
be
enriched,
expression
might
largely
inhibited,
which
led
negative
correlations
between
There
decreases
increases
contents
available
K
P,
respectively,
acidic
soils.
caused
inhibition
ammonia
oxidizing
bacteria,
resulted
sharp
decrease
level
NO3--N,
while
increase
NH4+-N
showed
potential
alleviating
effects
acidification;
differences
pH
chemical
properties
among
treatments
reduced.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(2), P. 240 - 240
Published: Feb. 1, 2024
Microbial-driven
processes,
including
nitrification
and
denitrification
closely
related
to
soil
nitrous
oxide
(N2O)
production,
are
orchestrated
by
a
network
of
enzymes
genes
such
as
amoA
from
ammonia-oxidizing
bacteria
(AOB)
archaea
(AOA),
narG
(nitrate
reductase),
nirS
nirK
(nitrite
nosZ
(N2O
reductase).
However,
how
climatic
factors
agricultural
practices
could
influence
these
processes
and,
consequently,
N2O
emissions
remain
unclear.
In
this
comprehensive
review,
we
quantitatively
assessed
the
effects
on
nitrogen
using
mega-analysis
(i.e.,
meta-meta-analysis).
The
results
showed
that
global
warming
increased
rates,
leading
an
overall
increase
in
159.7%.
Elevated
CO2
stimulated
both
with
substantial
emission
40.6%.
Nitrogen
fertilization
amplified
NH4+-N
NO3−-N
contents,
promoting
AOB,
nirS,
nirK,
caused
153.2%
emission.
application
biochar
enhanced
AOA,
nosZ,
ultimately
reducing
15.8%.
Exposure
microplastics
mostly
process
140.4%.
These
findings
provide
valuable
insights
into
mechanistic
underpinnings
microbial
regulation
emissions.
Plants,
Journal Year:
2024,
Volume and Issue:
13(6), P. 871 - 871
Published: March 18, 2024
One
of
the
most
concerning
global
environmental
issues
is
pollution
agricultural
soils
by
heavy
metals
(HMs),
especially
cadmium,
which
not
only
affects
human
health
through
Cd-containing
foods
but
also
impacts
quality
rice.
The
soil’s
nitrification
and
denitrification
processes,
coupled
with
release
volatile
organic
compounds
plants,
raise
substantial
concerns.
In
this
review,
we
summarize
recent
literature
related
to
deleterious
effects
Cd
on
both
soil
processes
N
cycle
rice
quality,
particularly
aroma,
in
different
water
management
practices.
Under
continuous
flooding
(CF)
alternate
wetting
drying
(AWD)
conditions,
cadmium
has
been
observed
reduce
processes.
adverse
are
more
pronounced
as
compared
(CF).
Similarly,
alteration
aroma
significant
AWD
than
CF.
precise
modulation
(VOCs)
remains
unclear
based
available
literature.
Nevertheless,
HM
accumulation
higher
conditions
CF,
leading
a
detrimental
impact
(VOCs).
concludes
that
practices
should
be
avoided
Cd-contaminated
fields
decrease
maintain
future,
rhizospheric
engineering
plant
biotechnology
can
used
transport
HMs
from
plant’s
edible
parts.
