Journal of Plant Nutrition and Soil Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 8, 2024
ABSTRACT
Background
The
controlled
uptake
long‐term
ammonium
nutrition
(CULTAN)
fertilization
technique
consists
of
injecting
a
concentrated
solution
into
the
soil
and
aims
to
positively
impact
crop
physiology
N
use
efficiency.
Aims
This
study
assesses
whether
CULTAN
can
contribute
lower
leaching
while
maintaining
yields
in
temperate
regions
with
an
annual
precipitation
around
1000
mm
or
higher.
Methods
We
analyzed
12‐year
lysimeter
experiment
two
consecutive
6‐crop
rotations
3‐year
field
winter
wheat
maize
Switzerland.
was
compared
conventional
surface
application
nitrate
fertilizer
(ConvF).
Results
achieved
at
least
similar
ConvF
both
studies
had
38%
yield‐scaled
lysimeters.
In
studies,
displayed
higher
nitrogen
recovery
efficiency
(NRE)
ConvF,
increase
ranging
from
8%
17%
depending
on
type,
although
statistical
significance
only
found
for
study.
NRE
were
weakly
correlated,
indicating
that
other
pathways
are
affected
system.
Finally,
we
suggest
timing
placement
injection
need
be
better
adapted
plant
pedoclimatic
conditions
optimal
nutrient
yields.
Conclusion
areas
high
concentration
groundwater,
effective
strategy
complementing
loss
reduction
measures.
Field Crops Research,
Год журнала:
2024,
Номер
313, С. 109412 - 109412
Опубликована: Май 17, 2024
The
individual
nitrogen
(N)
contribution
from
above-ground
plant
residue
(AGRP)
and
total
below-ground
residuals
(BGRT)
to
a
subsequent
wheat
crop
remains
poorly
explored.
need
understand
this
dynamic
is
crucial
for
optimizing
yield
soil
nutrient
management.
This
study
aimed
discern
the
N
contributions
AGRP
BGRT
succeeding
implications
of
various
grain
legume
residues
on
these
contributions.
A
four-year
field
consisting
two
2-year
legume–cereal
cropping
sequences
was
conducted
in
Saskatoon,
SK,
Canada.
legumes
were
chickpea,
faba
bean,
lentil,
pea,
with
spring
grown
as
reference
2014
2016.
Each
plot
split
into
quadrants
one
quadrant
receiving
15N-urea
other
three
non-labeled
(natural
abundance,
NA)
urea
pulse
phase.
After
harvest,
15N-AGRP
swapped
NA-AGRP
when
returned
field,
resulting
sub-plots
15N-AGRP/NA-BGRT
NA-AGRP/15N-BGRT
combinations.
In
2015
2017
all
plots
planted
fertilized
based
mineral
measurements
target
yields.
One
NA
received
during
cereal
phase
track
fate
fertilizer
versus
N.
Grain
species
did
not
affect
seed
crop.
However,
lentil
pea
required
less
than
residues.
Over
five
tested
residues,
(roots,
rhizodeposits,
residual
fertilizer,
soil)
largest
source,
accounting
70–91%
uptake,
which
surpassed
combination
(1–11%
uptake)
(5–21%
uptake).
Among
BGR
components,
main
contributor
wheat.
recovery
rates
below
9%
AGRP,
18%
BGRT,
26%
Below-ground
residue,
particularly
soil,
plays
pivotal
role
regulating
supply
crop,
overshadowing
AGR
fertilizer.
research
underscores
significance
BGR,
especially
management
crops.
Recognizing
dynamics
can
help
tailor
strategies
optimize
Agriculture,
Год журнала:
2025,
Номер
15(2), С. 208 - 208
Опубликована: Янв. 18, 2025
Nitrogen
dioxide
(NO2)
impacts
climate,
air
quality,
soil
nitrogen
fixation,
and
crop
production,
yet
its
transboundary
remain
unclear.
This
study
combines
15
global
datasets
to
assess
nitrogen’s
on
yields
health.
We
use
machine
learning
develop
yield
prediction
models
for
major
grain
crops
(maize,
rice,
soybean,
wheat)
affected
by
NO2.
Our
findings
indicate
stable
fixation
in
China
from
2015
2020,
although
overgrazing
deforestation
may
cause
declines.
Increasing
total
content
0.62–2.1
g/kg
can
reduce
NO2
10–30%.
research
indicates
that
the
current
agricultural
environments
(58.5–94.2%)
have
already
exceeded
concentration
range
tolerate,
particularly
regions
near
northern
urban
clusters.
highlights
need
regional
interventions,
such
as
precision
fertilizer
management,
enhance
both
yields.
Scenario
analysis
suggests
control
boost
maize
rice
a
greener
context,
while
increasing
improves
wheat
soybean
provides
solution
advancing
sustainable
agriculture
linking
cycle
management
with
improved
environmental
sustainability.
Applied Sciences,
Год журнала:
2025,
Номер
15(3), С. 1429 - 1429
Опубликована: Янв. 30, 2025
In
the
Yaqui
Valley,
Mexico,
current
and
estimated
annual
growth
rate
of
durum
wheat
(Triticum
turgidum
L.
subsp.
durum)
yield
is
insufficient
to
satisfy
food
demand
that
world
will
be
facing
by
2050.
Furthermore,
besides
high
doses
fertilizers
applied
in
this
region,
nitrogen-use
efficiency
(NUE)
remains
low
(<34.4%).
A
sustainable
strategy
reduce
use
increase
crop
quality
native
plant
growth-promoting
bacteria
as
microbial
inoculants.
This
study
was
performed
under
field
conditions
during
one
agricultural
season
Mexico.
It
aimed
quantify
impact
inoculation
a
bacterial
consortium
(BC)
composed
Bacillus
cabrialesii
TE3T,
Priestia
megaterium
TRQ8,
paralicheniformis
TRQ65
on
grain
yield,
quality,
NUE
(measured
through
15N-isotopic
techniques)
at
different
stages
development
variety
CIRNO
C2008
three
urea
(0,
120,
240
kg
N
ha−1)
fractionated
30%,
60%,
10%.
Results
showed
were
highly
affected
doses,
while
BC
had
lower
these
parameters.
Nevertheless,
positive
effects
early
growth,
height
(+1.6
cm),
root
depth
(+11.9
spikes
per
square
meter
(+25
m−2).
Moreover,
addition
improved
acquisition
plants,
stages,
compared
uninoculated
treatments.
Finally,
our
results
indicated
reducing
dose
from
ha−1
120
(27.5%
vs.
44.3%,
respectively)
crop.
Hence,
preliminary
incorporation
inoculants
into
requires
simultaneous
adequate
management,
order
obtain
desired
effect
productivity.
Frontiers in Microbiology,
Год журнала:
2025,
Номер
16
Опубликована: Апрель 23, 2025
Studying
the
influence
of
altitude
on
soil
microorganisms
and
enzyme
activity
is
crucial
for
protecting
land
environmental
changes
in
karst
areas.
The
study
focused
at
different
altitudes
Luganyou
area,
Baise
City.
Multidimensional
statistical
analysis
encompassed
assessments
nutrient
properties,
microorganisms,
enzymes
across
these
gradients.
results
indicate
that
0-15
cm
layer
surpasses
15-30
layer.
Catalase,
urease,
cellulase
exhibit
consistent
trends
both
shady
sunny
slopes,
increasing
with
altitude.
Alpha
diversity
shows
abundance
bacteria
fungi
shaded
side
following
trend
low
>
high
In
contrast,
side,
bacterial
richness
displayed
a
decreasing-increasing
pattern
rising
altitude,
while
mirrored
side.
Overall,
fungal
exhibited
slight
decrease,
whereas
increased
Across
overall
levels
tend
to
increase
comprehensive
ecological
stoichiometry
indicated
an
elevated
C/N
ratio,
N/P
C/P
ratios
were
relatively
slopes.
These
findings
suggest
area
as
whole
constrained
by
N
availability.
Correlation
redundancy
analyses
revealed
organic
matter
primary
factor
influencing
available
phosphorus
are
key
factors
affecting
include
total
nitrogen
content,
well
such
invertase,
catalase,
acid
phosphatase.
summary,
negative
correlation
between
microbial
slopes
areas
southwest
China
(160-380
m).
Additionally,
"low-high-low"
trend,
underscoring
significance
(R
2
=
0.683)
(p
<
0.05)
pivotal
drivers
communities.
aim
offer
theoretical
framework
guiding
crop
cultivation,
management,
enhancement
strategies
southwestern
China.
