Ratoon
rice
utilizes
the
axillary
buds
sprouting
from
remaining
stubble
of
main
crop
after
harvest
to
form
panicles,
enabling
a
second
harvest.
However,
mechanized
harvesting
often
resulted
in
damage
stubbles
rolling
zone,
potentially
leading
reduced
yield.
Enhancing
number
tillers
zone
through
optimized
agronomic
measures
was
crucial
for
achieving
higher
research
on
water
and
fertilizer
management
corresponding
low
ratoon
under
limited.
A
two-factor
experiment
conducted
assess
impacts
regimes
(flooded,
FL;
alternate
wetting
drying,
AWD)
nitrogen
(0
kg
N
ha-1,
CK;
Tiller
promotion
90
N;
Delayed
application:
60
ha-1
+
Booting
stage
30
SN)
yield
formation,
greenhouse
gas
emissions,
carbon
footprint
rice.
The
results
indicated
significant
effects
Compared
N-FL,
SN-AWD
significantly
increased
average
annual
by
25.39%.
increment
ranged
36.58%
72.72%
AWD
compared
flooding,
ability
basal
first
nodes
N-FL.
Soil
quality
index
ecosystem
multifunctionality
32.37%
9.05
times,
respectively,
resulting
increases
root
length,
surface
area,
volume,
consequently
enhancing
pre-anthesis
post-anthesis
dry
matter
accumulation
ultimately
improving
Although
N2O
emissions
CH4
cumulative
decreased
37.86%
over
two
years,
23.02%
reduction
total
38.62%
footprint.
attained
maximum
net
economic
benefit
(NEEB),
increasing
35.42%
Overall,
comprehensive
analysis
suggested
that
sustainable
approach
beneficial
balancing
season
yields,
environmental
footprint,
benefits.
Global Change Biology,
Journal Year:
2024,
Volume and Issue:
30(2)
Published: Feb. 1, 2024
Abstract
Maintaining
or
even
increasing
crop
yields
while
reducing
nitrous
oxide
(N
2
O)
emissions
is
necessary
to
reconcile
food
security
and
climate
change,
the
metric
of
yield‐scaled
N
O
emission
(i.e.,
per
unit
yield)
at
present
poorly
understood.
Here
we
conducted
a
global
meta‐analysis
with
more
than
6000
observations
explore
variation
patterns
controlling
factors
for
maize,
wheat
rice
associated
potential
mitigation
options.
Our
results
showed
that
average
across
all
available
data
followed
order
(322
g
Mg
−1
,
95%
confidence
interval
[CI]:
301–346)
>
maize
(211
CI:
198–225)
(153
144–163).
Yield‐scaled
individual
crops
were
generally
higher
in
tropical
subtropical
zones
temperate
zones,
also
trend
towards
lower
intensities
from
low
high
latitudes.
This
was
better
explained
by
climatic
edaphic
fertilizer
management,
their
combined
effect
predicted
70%
variance.
Furthermore,
our
analysis
significant
decrease
use
efficiency
production
systems
cereal
>10
ha
(maize),
6.6
(wheat)
6.8
(rice),
respectively.
highlights
indicators
can
be
used
as
valuable
proxies
reconciling
trade‐offs
between
mitigation.
For
three
major
staple
crops,
fertilization
up
30%,
optimizing
timing
placement
application
using
enhanced‐efficiency
fertilizers
significantly
reduced
similar
yields.
data‐driven
assessment
provides
some
key
guidance
developing
effective
targeted
adaptation
strategies
sustainable
intensification
production.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(2), P. 248 - 248
Published: Jan. 24, 2024
The
cultivation
of
rice
is
one
the
main
sources
greenhouse
gas
(GHG)
emissions
due
to
continuously
flooded
irrigation
(CF),
which
demands
large
volumes
water.
As
an
alternative
solution,
alternate
wetting
and
drying
(AWD)
has
been
developed
as
a
water-saving
strategy.
This
study
was
conducted
at
Experimental
Agricultural
Station
(EEA)
in
Vista,
Florida,
Lambayeque
region
located
on
northern
coast
Peru.
Thus,
it
analyzed
effect
AWD
different
depths
(5,
10,
less
than
20
cm
below
surface)
compared
CF
control
methane
(CH4)
nitrous
oxide
(N2O)
grain
yield.
treatments
reduced
CH4
by
84%
99%
but
increased
N2O
66%
273%.
In
terms
Global
Warming
Potential
(GWP),
AWD10
treatment
demonstrated
77%
reduction
Water
Use
Efficiency
(WUE)
0.96,
affecting
only
2%
decrease
yield,
ranged
between
11.85
14.01
t
ha−1.
Likewise,
this
provides
sufficient
evidence
for
adoption
strategy
efficient
use
water
resources
mitigation
GHG
area,
continuous
irrigation.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(3), P. 480 - 480
Published: March 16, 2024
As
the
main
organic
materials,
straw
and
manure
play
a
critical
role
in
soil
carbon
(SOC)
sequestration
crop
yield
China.
This
meta-analysis
evaluated
impact
of
amendments,
both
individually
combined,
on
yield,
SOC,
nutrients
China
by
collecting
173
studies.
The
findings
this
study
revealed
that
return
application
increased
yields
14.4%
70.4%,
respectively,
overall.
Combined
gained
better
improvement
effect
than
alone
but
was
less
effective
alone.
Regarding
results,
rice
3000–6000
kg
ha−1
returning
quantity
improved
available
phosphorus
(AP),
potassium
(AK),
total
nitrogen
(TN)
most;
regarding
form,
incorporated
into
biochar
SOC
more,
respectively;
<5
years
≥5
treatment
TN
respectively.
application,
pig
chicken
50–80%
substitution
ratio
10–20
duration
were
best
for
improving
AP,
AK,
TN.
highlights
importance
optimal
amendment
through
or
applications
to
achieve
win–win
between
fertility
under
requirement
sustainable
agriculture.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(2), P. 378 - 378
Published: Feb. 16, 2024
Rice
provides
~20%
of
human
dietary
energy
and,
for
many
people,
a
similar
share
their
protein.
cultivation,
however,
produces
significant
greenhouse
gas
(GHG)
emissions,
comparable
to
those
from
the
aviation
sector.
The
main
GHG
rice
production
is
methane,
mostly
result
conventional
cultivation
(CRC)
keeping
fields
continuously
flooded
during
crop
cycle.
There
extensive
evidence
that
alternate
wetting
and
drying
(AWD)
substantially
reduces
methane
emissions.
AWD
one
component
System
Intensification
(SRI),
an
agroecological
approach
management
plants,
water,
soil,
nutrients.
This
article
reviews
field
studies
measuring
emissions
associated
with
adoption
SRI.
review
confirms
both
SRI
offer
substantial
reductions
in
per
hectare
compared
CRC.
These
benefits
are,
partly
offset
by
increases
nitrous
oxide
carbon
dioxide.
also
show
(but
not
AWD)
improves
yield
therefore
further
kg
rice.
concludes
while
reduce
kilogram
rice,
can
simultaneously
contribute
food
security
addressing
drivers
climate
change.
Further
investigation
sequestration
under
different
methods
needed
strengthen
base.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(3), P. 544 - 544
Published: March 7, 2024
Conventional
water
and
fertilizer
management
practices
have
led
to
elevated
greenhouse
gas
emissions
from
rice
fields
decreased
the
efficiency
of
utilization
in
agricultural
land.
The
implementation
water-saving
irrigation
substitution
chemical
fertilizers
with
organic
alternatives
can
influence
CH4
N2O
fields.
However,
it
remains
unclear
how
simultaneous
application
both
methods
will
affect
Therefore,
two
(F:
flooded
irrigation;
C:
controlled
irrigation)
three
fertilization
modes
(A:
full
fertilizer;
B:
bio-organic
replacing
15%
nitrogen
30%
fertilizer)
were
set
up
through
field
experiments
explore
effect
emission
reduction
by
combining
fertilizers.
Substituting
some
lower
peak
fluxes
fields,
leading
a
decrease
cumulative
11.9~29.7%
10.8~57.3%,
respectively.
reductions
considerable
global
warming
potential
(GWP)
intensity
(GHGI)
16.1~48.1%
16.3~48.1%,
Controlled
significantly
reduced
55.2~69.4%
compared
also
increased
47.5~207.9%,
considerably
reducing
their
GWPs
11.8~45.5%.
Neither
nor
affected
yield.
Replacing
minimize
GWP
GHGI.
study’s
results
are
significant
importance
for
enhancing
regulation
gases
farmland
achieving
sustainable
agriculture
cleaner
production.
