Plants,
Journal Year:
2022,
Volume and Issue:
11(15), P. 1963 - 1963
Published: July 28, 2022
Agricultural
nitrogen
(N)
non-point
source
pollution
in
the
North
China
Plain
is
a
major
factor
that
affects
water
quality
and
human
health.
The
characteristics
of
N
leaching
under
different
application
conditions
should
be
further
quantified
accurately
winter
wheat
(Triticum
aestivum
L.)
summer
maize
(Zea
mays
rotation
farmland
China,
basis
for
reducing
risk
evaluation
this
area.
A
three-year
field
experiment
was
conducted
using
an
situ
leakage
pond
method
at
typical
Henan
2017-2020.
Crop
yield,
soil
nitrate
residues,
utilization
were
also
studied
during
study
period.
Five
fertilizer
rates
established
with
0
(CK),
285
(LN),
465
(MN),
510
(MNO),
645
(HN)
kg
ha-1
one
cycle.
MNO
applied
chemical
organic
fertilizers.
concentration
solution
CK,
LN,
MN,
MNO,
HN
0.81-,
1.49-,
3.65-,
5.55-,
7.57-fold
World
Health
Organization's
standard
underground
drinking
water.
exponential
relationship
between
rate
obtained
when
annual
input
exceeded
300
ha-1,
increased
greatly.
total
50.6-82.4%
treatments
application.
combination
fertilizers
treatment
(MNO)
reduced
amount
leached
dry
years.
accounts
83.0%,
49.4%,
72.0%
whole
cycles
LN
MN
recommended
as
optimized
here
(285-465
ha-1)
two-season
grain
yield
17.2
ton
(16.5-17.9
21.6
(12.6-30.5
ha-1).
Agronomy for Sustainable Development,
Journal Year:
2022,
Volume and Issue:
42(4)
Published: July 19, 2022
Abstract
Intensive
agriculture
in
Germany
is
not
only
highly
productive
but
has
also
led
to
detrimental
effects
the
environment.
Crop
diversification
together
with
new
field
arrangements
considering
soil
heterogeneities
can
be
an
alternative
improve
resource
use
efficiency
(RUE),
ecosystem
services
(ESS),
and
biodiversity.
Agroecosystem
models
are
tools
that
help
us
understand
design
diversified
arrangements.
The
main
goal
of
this
study
was
review
extent
which
agroecosystem
have
been
used
for
crop
at
landscape
scale
by
model
requirements
purpose.
We
found
several
available
simulating
spatiotemporal
scale.
For
spatial
diversification,
simplified
modelling
approaches
consider
interactions
light,
water,
nutrients,
they
offer
restricted
combinations.
temporal
include
major
crops
(e.g.,
cereals,
legumes,
tuber
crops).
However,
parameterization
limited
marginal
carbon
nitrogen
(N).
At
scale,
decision-making
frameworks
commonly
cropping
systems.
Within-field
rarely
considered
or
studies.
Combining
static
dynamic
agroecosystems
useful
evaluation
trade-offs
ESS
delivery
To
enhance
modeling
capabilities
simulate
systems
arrangements,
it
will
necessary
representation
interactions,
inclusion
more
species
options,
legacy
effects,
biodiversity
estimations.
Newly
arrangement
requires
higher
data
resolution,
generated
via
remote
sensing
sensors.
propose
implementation
a
framework
combines
process-based
optimized
respective
experiments
testing
combined
framework.
European Journal of Soil Science,
Journal Year:
2019,
Volume and Issue:
72(2), P. 979 - 994
Published: Nov. 19, 2019
Abstract
The
application
of
plastic
film
mulch
and
the
return
incorporation
crop
straw
into
topsoil
as
independent
treatments
affect
soil
physicochemical
properties,
including
nutrient
balance/cycling.
It
remains
unclear
whether
combining
significantly
affects
properties
bacterial
communities.
We
conducted
a
two‐factor
(plastic
maize
incorporation)
randomized
block
design
experiment
with
four
treatments:
no
or
(C),
(M),
without
(CS)
(MS).
Soil
was
sampled
at
end
growing
cycle
after
3
years
treatment.
organic
carbon
(SOC),
total
nitrogen
(TN)
nitrate‐nitrogen
(NO
−
‐N)
concentrations
improved
incorporation.
Plastic
had
significant
negative
effect
on
richness,
whereas
effect.
Straw
positive
diversity,
MS
M
more
Proteobacteria
than
C
CS
treatments.
Formation
community
structure
driven
by
TN,
NO
‐N
SOC
in
incorporation,
ammonium‐nitrogen
(NH
4
+
In
conclusion,
coupled
can
change
taxonomical
functional
composition
communities
enhance
diversity
affecting
cycling
cropland
soils
farmland,
especially
arid
semiarid
regions.
Highlights
SOC,
TN
–N
greater
NH
Scientific Reports,
Journal Year:
2018,
Volume and Issue:
8(1)
Published: June 15, 2018
Field
experiments
were
conducted
in
rice-wheat
rotation
under
conventional
management
to
determine
the
effects
of
straw
return
((half
return,
HS)
and
(total
TS))
on
crop
yield,
N
uptake,
soil
properties
NO3--N
leaching.
We
found
that
significantly
increased
yield
uptake.
TS
SOM
at
depths
20
cm
30
cm.
Straw
had
leaching
a
depth
10
cm,
whereas
decreased
90
rice
season.
In
wheat
season,
HS
performed
better
than
fertilization
without
reducing
Soil
was
through
enhancing
total
improving
aggregation
decreasing
concentration.
Our
results
indicated
has
potential
increase
improve
decrease
concentration,
thus
increasing
uptake
system
Ningxia
Yellow
river
irrigation
district.
future,
long-term
observation
nitrate
nitrogen
are
necessary
identify
environmentally
friendly
practices
for
rotation.
