With
the
development
of
economy,
contradiction
between
population,
resources,
and
environment
has
become
more
prominent.
How
to
make
full
use
limited
cultivated
land
resources
increase
food
production
while
reducing
damage
is
an
important
issue
facing
agricultural
production.
Maize
plays
essential
role
in
ensuring
global
security.
Planting
density
a
key
agronomic
factor
affecting
maize
yield.
Soil
organic
matter
(SOM)
indicator
soil
fertility.
However,
it
unknown
whether
there
are
different
optimal
planting
densities
under
SOM
contents
optimizing
based
on
further
improves
grain
yield
resource
efficiency.
Therefore,
this
study
aims
investigate
influence
yield,
determine
relationship
(AOPD),
compare
economic
benefits,
efficiency
sowing
at
uniform
conventional
(SUD)
versus
optimized
(SOD).
The
results
showed
that
AOPD
its
corresponding
increased
linearly
with
SOM.
Compared
SUD,
two
experimental
sites
SOD
by
2.2%
5.4%,
respectively,
benefits
0.4%
4.6%,
respectively.
average
energy
efficiency,
mass
productivity,
productivity
were
all
higher
than
those
SUD.
above
demonstrated
theoretically
feasible
optimize
spatial
heterogeneity
potential
sustainable
method
can
fully
utilize
benefits.
Frontiers in Nutrition,
Год журнала:
2023,
Номер
10
Опубликована: Март 14, 2023
Developing
an
intensive
sustainable
model
and
feeding
a
rising
population
are
worldwide
challenges.
The
task
is
much
more
daunting
in
the
North
Eastern
Himalayas,
where,
low
productive
maize
(Zea
mays)-
fallow
main
production
system
upland.
To
increase
farm
productivity,
nutritional
security,
energy
dietary
returns
while
maintaining
environmental
sustainability
economic
viability,
short-duration
crops
must
be
included
maize-fallow
system.A
field
study
was
conducted
sandy
clay
loam
soil
with
randomized
complete
block
design
three
replications
for
continuous
years
(2018-2021)
under
organic
management
two
crop
practices,
viz.,
(i)
conservation
agriculture
(ii)
conventional
agriculture,
six
diversification
options,
maize-sweet
corn
mays
saccharata)-vegetable
pea
(Pisum
sativa)
(M-SC-VP),
corn-mustard
(Brassica
juncea)
(M-SC-M),
(iii)
corn-lentil
(Lens
culinaris)
(M-SC-L),
(iv)
corn-vegetable
broad
bean
(Vicia
faba)
(M-SC-VB),
(v)
(local)-vegetable
(M-VP),
(vi)
(local)-fallow
(M-F).The
results
showed
that,
average
productivity
5.3%
lower
than
agriculture.
System
carbohydrate,
protein,
fat,
fiber,
were
~6.9,
6.8,
7.8,
6.7,
7%,
higher
respectively.
Similarly,
macronutrients
(Ca,
Mg,
P,
K)
micronutrients
yield
(Fe,
Mn,
Zn,
Cu)
were,
5.2-8%
6.9-7.4%
On
average,
over
years,
M-SC-VP/M-SC-VB
rotation
had
(158%),
efficiency
(157%),
net
(benefit-cost
ratio)
(44%),
(16.6%)
local
maize-vegetable
system.
improved
security
by
improving
Ca,
K,
Fe,
Cu
35.5-135.7%
M-VP
system.Conservation
significantly
(p
<
0.05)
carbohydrate
yield,
protein
fat
fiber
production.
It
concluded
that
health
performed
better
maize-based
cropping
systems.
Overall
indicate
can
potentially
calorie
consumption
profitability.
Agricultural Water Management,
Год журнала:
2024,
Номер
294, С. 108726 - 108726
Опубликована: Фев. 16, 2024
The
North
China
Plain
(NCP)
is
a
remarkable
agricultural
area
with
severe
water
scarcity
and
uneven
precipitation,
especially
in
wheat
season.
Optimizing
irrigation
strategies
to
increase
productivity
(WP)
achieve
higher
yield
winter
wheat-summer
maize
rotation
urgently
needed
has
been
persistent
challenge.
A
four-year
field
experiment
was
conducted
explore
the
impact
of
on
WP
subsequent
under
different
precipitation
year
types
(dry
normal
years,
categorized
based
cumulative
from
sowing
jointing
stage
(P1)).
Four
(W0,
no
irrigation;
W1,
pre-sowing
W2,
+
W3,
anthesis
irrigation)
were
adopted
for
wheat,
identical
operations
applied
maize.
Results
showed
that
affected
by
P1
rather
than
total
precipitation.
Irrigation
improved
enhancing
evapotranspiration,
spike
number,
grain
1000-seed
weight.
water-limited
gap
between
W2
W1
significantly
those
W0,
W3
implying
suitable
strategy
production.
Different
season
had
effect
but
increased
13.2–29.3%
16.1–41.8%
compared
other
treatments
through
decreasing
soil
storage
before
dry
years.
Therefore,
we
recommended
annual
yield,
WP,
net
income
years
(37.6
mm
<
79.9
mm);
lower
consumption
economic
benefits
(P1
37.6
mm),
respectively.
Overall,
optimizing
conditions
an
effective
cope
resource
shortages
crop
NCP.
Agricultural Water Management,
Год журнала:
2024,
Номер
295, С. 108765 - 108765
Опубликована: Март 14, 2024
Long-term
rotary
tillage
limit
water
infiltration
and
crop
productivity
in
North
China
Plain
(NCP).
The
practice
of
subsoiling
to
fracture
plow
pans
has
made
beneficial
impacts
on
soil
surface
structure
infiltration.
Further,
appropriate
irrigation
method
coupled
with
regime
can
improve
condition.
A
three-year
field
trial
(2020–2023)
was
carried
out
assess
the
effects
winter
wheat
evapotranspiration
(ET),
grain
yield
(GY),
(WP),
partial
factor
from
applied
nitrogen
(PPFN),
economic
analysis.
three
regimes
were
irrigated
when
moisture
levels
decreased
70%,
60%
50%
capacity
(referred
as
H,
M
L)
two
methods
drip
(SDI)
micro-sprinkler
(MSI).
traditional
flood
70%
filed
CK.
results
showed
optimizing
significantly
influenced
ET,
GY,
WP,
PPFN,
net
incomes.
As
amount
increased,
ET
first
increased
while
incomes
then
slightly
decreased.
Based
average,
maximum
GY
9454
kg
ha−1
income
11089
yuan
achieved
SDI-M,
which
had
WP
2.3
m−3
PPFN
39.4
kg−1.
At
same
time,
SDI-M
did
not
result
much
increase
(average
405.1
mm
seasons).
Considering
comprehensively
incomes,
irrigate
decreases
by
optimal
strategy
all
aspects.
These
will
provide
a
scientific
reference
for
management
NCP,
well
similar
production
areas
worldwide.
