Agronomy,
Год журнала:
2024,
Номер
14(2), С. 400 - 400
Опубликована: Фев. 19, 2024
We
investigated
the
effects
of
variety,
planting
density,
and
irrigation
amount
on
grain
yield,
water-use
efficiency
(WUE),
evapotranspiration
(ETc).
The
trial
was
conducted
in
Tong
Liao,
Inner
Mongolia,
from
2021
to
2022,
with
compact
variety
Dika159
(DK159)
conventional
Zhengdan958
(ZD958)
as
test
materials.
density
set
6.0
×
104
plants/ha
(D1,
local
farmer
density)
9.0
(D2),
five
levels:
450
mm
(W450,
used
by
farmers,
CK);
360
(W360);
270
(W270);
180
(W180);
90
(W90).
results
indicate
that
yield
WUE
DK159
increased
7.48%
5.00%,
compared
ZD958,
respectively.
Increasing
enhanced
13.32–15.57%
maize
9.55–11.47%
WUE.
Maize
exhibited
a
trend
increasing
linearly
before
reaching
plateau,
maximum
(16.62–17.39
t/ha)
high
(2.45–2.49
kg/m3)
DK159-D2-W270.
highest
water
consumption
intensity
occurred
during
silking
stage
milk
for
different
densities
varieties.
selecting
varieties,
optimizing
through
integrated
drip
fertilizer
can
effectively
improve
Agronomy,
Год журнала:
2024,
Номер
14(5), С. 944 - 944
Опубликована: Апрель 30, 2024
Improving
crop
yield
and
resource
utilization
efficiency
is
essential
for
agricultural
productivity.
In
the
Huang-Huai-Hai
maize
region
of
China,
optimizing
planting
density,
nitrogen
(N)
application,
fertilization
methods
are
key
strategies
enhancing
N
use
efficiency.
However,
traditional
approaches
have
often
hindered
these
improvements.
To
address
this
issue,
we
conducted
a
study
in
Baoding,
Hebei,
from
2022
to
2023,
focusing
on
application
rate,
method
grain
yield,
efficiency,
water
(WUE),
economic
benefits.
The
trial
involved
two
densities:
6.0
×
104
plants
ha−1
(D1,
typical
local
density)
9.0
(D2).
Five
rates
were
tested:
0
(N0),
120
kg
(N1),
180
(N2),
240
(N3),
300
(N4).
control
treatment
(D1N4)
utilized
density
methods.
Our
findings
revealed
positive
correlation
between
with
maximum
yields
(13.78–13.88
t
ha−1),
high
WUE
(24.42–29.85
m−3),
agronomic
(AEN)
(18.11–19.00
kg−1),
benefits
(2.44
104–2.47
CNY
ha−1)
observed
D2N3
surface
drip
fertilization.
This
was
significantly
higher
than
saved
fertilizer
production
costs.
Therefore,
adopting
fertilization,
adjusting
proved
effective
region.
Agronomy,
Год журнала:
2024,
Номер
14(12), С. 2933 - 2933
Опубликована: Дек. 9, 2024
Chemical
products,
such
as
seed
dressings,
are
often
used
to
regulate
crop
growth
and
development
improve
yields.
In
this
study,
we
investigated
a
dressing
containing
0.136%
gibberellic
acid
(GA),
indole-3-acetic
(IAA)-,
brassinolide
(BL)
wettable
powder
(WP),
hereafter
referred
GA-IAA-BL
WP.
This
product
is
new
plant
regulator
of
origin
that
can
stress
resistance
yield.
However,
its
effect
on
maize
germination
seedling
under
low-temperature
unclear.
WP
was
applied
‘Liukexing
99’
seeds
at
50,
100,
150,
or
200
mg
mL−1,
were
germinated
in
an
artificial
climatic
chamber
10,
15,
25
°C
for
14
d.
Application
100
mL−1
significantly
increased
the
rate
well
shoot
root
length
dry
fresh
weight
all
three
temperatures.
application
also
contents
proline,
malondialdehyde,
soluble
sugars,
proteins;
activities
catalase,
superoxide
dismutase,
peroxidase;
vigor.
Our
results
demonstrate
reduce
negative
impacts
growth.
