European Journal of Agronomy,
Год журнала:
2021,
Номер
133, С. 126415 - 126415
Опубликована: Ноя. 10, 2021
Soybean
is
one
of
the
five
crops
that
dominate
global
agriculture,
along
with
maize,
wheat,
cotton
and
rice.
In
Europe,
soybean
still
plays
a
minor
role
cultivated
mainly
in
South
East.
Very
little
known
about
potential
for
higher
latitudes
relatively
cool
conditions.
To
investigate
agronomic
limitations
feed
(high
grain
yield)
food
protein
content,
e.g.,
tofu
production)
latitudes,
an
organic
cropping
system
experiment
was
carried
out
from
2015
to
2017
northeastern
Germany.
The
objectives
were:
(1)
identify
food-
feed-grade
cultivars
are
adapted
central
European
climate
terms
protein,
yield,
yield
stability,
(2)
explore
effect
irrigation
on
under
dry
growing
conditions,
(3)
determine
agro-economic
cultivation
both
markets.
Three
were
tested
without
irrigation.
‘Sultana’
‘Merlin’
better
cycle
temperature,
providing
more
stable
yields
(average
2700
kg
ha−1)
than
food-grade
cultivar
‘Protibus’
1300
ha−1).
Irrigation
increased
by
41%
average.
year
sufficient
precipitation,
no
additional
necessary.
Gross
margins
ranged
between
750
€
ha−1
rainfed
2000
irrigated
other
crops.
We
demonstrated
large
as
novel
legume
crop
diversify
systems
increase
production
Europe.
Chemosensors,
Год журнала:
2025,
Номер
13(2), С. 46 - 46
Опубликована: Фев. 3, 2025
Potassium
iodate
and
potassium
iodide
are
commonly
fortified
in
iodized
table
salt,
which
must
be
continuously
monitored
to
maintain
quality.
Our
study
reported
an
optimized
detection
method
for
total
iodine
salt
using
0.5
M
sodium
bisulfite
as
the
reducing
agent.
The
(0.5
g)
was
dissolved
solution
prior
injection
ultra-high-performance
liquid
chromatography
(UHPLC)
coupled
with
a
diode
array
detector
weak
anion-exchange
column
(2.1
mm
×
150
mm,
5
μm).
Iodide
eluted
at
9.92
±
0.06
min
(λ
=
223
nm)
when
isocratic
mobile
phase
of
1:1
(v/v)
methanol/120
mM
phosphate
buffer
mixed
tetrasodium
pyrophosphate
(pH
3.0)
running
0.20
mL/min
(15
min).
detected
from
10.0
50.0
mg/kg
limit
(LOD)
1.2
quantification
(LOQ)
3.7
mg/kg.
validated
relative
standard
deviations
(RSDs)
4.2%,
0.4%,
1.6%,
0.8%
accuracy,
repeatability,
intermediate
precision,
robustness,
respectively.
determination
successful
on
six
(6)
samples
(n
3),
recovered
87.2–106.9%
spike.
Thus,
this
provides
protocol
bisulfite.
Agriculture,
Год журнала:
2021,
Номер
11(3), С. 255 - 255
Опубликована: Март 17, 2021
The
intercropping
of
two
or
more
crop
species
on
the
same
piece
land
at
a
given
time
has
been
hypothesized
to
enhance
yield
stability.
To
address
this
hypothesis,
we
assessed
grain
stability
various
barley-pea
and
wheat-faba
bean
mixtures
grown
in
seven
experimental
field
trials
(locations)
across
Europe
during
years
with
contrasting
weather
(2017
2018).
Three
different
measures
were
used,
all
based
expected
variability
mixture
components
as
sole
crops,
corresponding
observed
50:50
replacement
design.
Stability
indices
calculated
ratios
between
variabilities,
values
>
1
indicating
greater
intercrops.
Mean
yields
tended
be
higher
intercrops
than
crops.
However,
contrast
our
(intercrop)
was
similar
lower
(sole
crop)
most
locations
except
one.
Furthermore,
significantly
increased
increasing
mean
when
differentially
productive
locations.
results
are
relevant
for
designing
systems
means
increase
resilience
cropping
systems.
Agronomy for Sustainable Development,
Год журнала:
2022,
Номер
42(6)
Опубликована: Дек. 1, 2022
Abstract
In
the
face
of
climate
change,
cropping
systems
need
to
achieve
a
high
performance,
providing
food
and
feed
adapting
variable
environmental
conditions.
Diversification
can
support
ecosystem
services
associated
biodiversity,
but
there
is
little
evidence
on
which
temporal
field
arrangement
affects
performance
crop
yields
(productivity
stability),
partly
due
lack
long-term
data
appropriate
indicators.
The
objectives
this
study
were
quantify
effect
system
diversification
yield
stability,
adaptability,
probability
diversified
outperform
less
diverse
cereal-based
in
Europe.
Spring
winter
cereal
analyzed
from
experiments
Sweden,
Scotland,
France.
We
investigated
through
(i)
introduction
perennial
leys,
(ii)
increasing
proportion
ley
rotation,
(iii)
varying
order
crops
are
positioned
(iv)
grain
legumes,
(v)
cover
crops.
results
showed
that
within
incorporating
leys
outperformed
without
60–94%
comparisons
with
higher
probabilities
at
low
fertilizer
intensities.
stability
oat
did
not
differ,
mean
33%
higher,
when
grown
directly
after
compared
two
years
later
sequence
under
similar
management.
Durum
wheat
legumes
had
lower-yielding
conditions
rotations
legumes.
significantly
affect
stability.
conclude
increase
productivity
adaptability
more
likely
especially
introducing
forage
into
arable
systems.
Effects
inconsistent
indicating
achievable
reducing
variability.
These
novel
findings
design
high-performing
Journal of Ecology,
Год журнала:
2024,
Номер
112(4), С. 917 - 931
Опубликована: Фев. 21, 2024
Abstract
Grasslands,
which
encompass
40%
of
terrestrial
ecosystems,
hold
global
significance
for
food
production,
carbon
storage
and
other
ecosystem
services.
However,
grasslands
across
the
biosphere
are
becoming
increasingly
exposed
to
both
wet
dry
precipitation
extremes
resulting
from
climate
change.
Therefore,
understanding
how
will
respond
is
a
pressing
issue
managing
changes
biodiversity
service
provision.
Here,
we
use
experimental
manipulations
(50%
increase
50%
decrease
in
growing‐season
precipitation)
over
6
years
investigate
stability
resistance
productivity
community
diversity
calcareous
grassland
community.
We
found
that
decreased
led
reductions
mean
(25%
peak
above‐ground
biomass)
its
temporal
(54%
coefficient
variation
biomass
years).
Productivity
losses
were
more
pronounced
graminoids
legumes,
but
this
was
not
reflected
species
per
cent
cover.
Community
composition
resistant
manipulations,
with
no
clear
differences
overall
compositional
turnover,
dissimilarity
or
indices.
There
also
detectible
effect
increased
on
composition,
may
indicate
lack
efficacy
irrigation
treatment
increasing
soil
moisture.
Finally,
had
trends
change,
an
richness
shift
study
period
independent
treatment.
Synthesis
.
While
(at
least
short
term),
sustained
reduced
stability,
particularly
legumes.
highlight
different
properties
can
vary
their
responses
precipitation.
Global Change Biology,
Год журнала:
2024,
Номер
30(7)
Опубликована: Июль 1, 2024
Climate
and
land-use
change
are
key
drivers
of
global
change.
Full-factorial
field
experiments
in
which
both
manipulated
essential
to
understand
predict
their
potentially
interactive
effects
on
the
structure
functioning
grassland
ecosystems.
Here,
we
present
8
years
data
dynamics
from
Global
Change
Experimental
Facility
Central
Germany.
On
large
experimental
plots,
temperature
seasonal
patterns
precipitation
by
superimposing
regional
climate
model
projections
onto
background
variability.
manipulation
is
factorially
crossed
with
agricultural
scenarios,
including
intensively
used
meadows
extensively
(i.e.,
low-intensity)
pastures.
Inter-annual
variation
during
our
study
was
high,
three
driest
record
for
region.
The
this
temporal
variability
far
exceeded
experimentally
imposed
plant
species
diversity
productivity,
especially
grasslands
sown
only
a
few
grass
cultivars.
These
changes
productivity
response
alterations
were
due
immigrant
replacing
target
forage
This
shift
cultivars
may
impose
additional
economic
costs
terms
decreasing
value
need
more
frequent
management
measures.
In
contrast,
showed
weaker
responses
future
inter-annual
variability,
suggesting
that
these
diverse
resistant
than
used,
species-poor
grasslands.
We
therefore
conclude
lower
intensity
grasslands,
associated
higher
diversity,
can
stabilize
primary
under
Field Crops Research,
Год журнала:
2022,
Номер
291, С. 108788 - 108788
Опубликована: Дек. 19, 2022
Crop
productivity
in
sub-Saharan
Africa
cannot
be
substantially
improved
without
simultaneously
addressing
short-term
crop
nutrient
demand
and
long-term
soil
fertility.
Integrated
fertility
management
tackles
both
by
the
combined
application
of
mineral
fertilizers
organic
resource
inputs
but
few
studies
examined
its'
effectiveness.
To
address
this
knowledge
gap,
study
analysed
maize
yield
trends
four
(31–37
cropping
seasons)
field
experiments
Kenya
with
contrasting
textures
under
different
climates.
All
sites
had
two
seasons
per
year,
received
a
base
P
K
fertilization
tested
combinations
addition
(1.2
4
t
C
ha-1
yr-1
ranging
from
farmyard
manure,
to
high-quality
Tithonia
diversifolia
Calliandra
calothyrsus
material
low-quality
saw
dust),
(+N)
(-N)
N
fertilizer
(120
kg
season-1).
General
across
site
specific
were
analyzed.
Across
sites,
no-input
control
experienced
significant
average
reductions
50
over
period.
In
contrast,
treatment
manure
+N
maintained
yields
at
1.2
yr-1.
High
initial
following
additions
Calliandra,
reduced
time.
Assessment
showed
specificity
trends.
For
example,
climatically
favorable
western
gains
high
quality
resources
yr-1,
leading
up
8
season,
while
central
losses,
3.5
season.
Yield
for
±
treatments
was
stonger
than
treatments,
e.g.
clayey
end
no
differences
between
N,
except
treatment.
Yet,
plus
consistently
achieved
highest
all
(about
5
dry
matter)
most
N-efficient
At
realistic
rates,
integrated
is
best
sustained
N.
Mixed
crop-livestock
systems
are
key
ingredients
smallholder
Africa.
