Agronomy,
Journal Year:
2024,
Volume and Issue:
14(8), P. 1668 - 1668
Published: July 29, 2024
Crop
straw
returning
to
the
field
is
an
effective
practice
for
utilization
improve
soil
fertility
and
sustain
crop
productivity.
However,
little
information
available
about
long-term
effects
of
paddy
return
on
properties
rice
yield
under
a
double-rice
system.
The
objectives
this
study
were
test
hypothesis
different
amounts
returned
physicochemical
yield,
clarify
correlation
between
as
well
quick-acting
nutrients
straw-returning
modes.
experiment,
initiated
in
2005
season,
utilized
“Xiang
45”
13”
long-grained
cultivars
within
double-season
cropping
Three
treatments
implemented:
rotary
tillage
with
full
incorporation
(RTS),
one-third
(1/3RTS),
two-thirds
(2/3RTS).
This
found
that
among
three
rates,
2/3RTS
had
most
significant
impact
properties.
Soil
nitrogen
content
was
identified
crucial
factor
influencing
organic
carbon
(SOC)
accumulation,
while
pH
levels
significantly
affected
yield.
Straw
effectively
increased
stocks
SOC.
Agricultural Water Management,
Journal Year:
2024,
Volume and Issue:
294, P. 108722 - 108722
Published: Feb. 15, 2024
Optimizing
water
and
nitrogen
(N)
utilization
to
enhance
crop
yields
under
resource
constraints
is
crucial.
Straw
its
biochar,
combined
with
N
fertilizer,
are
commonly
used
improve
soil
carbon
storage
growth.
However,
the
effects
of
straw
fertilizer
management
on
consumption,
root
shoot
characteristics,
uptake,
maize
productivity
remain
unclear.
To
address
this
knowledge
gap,
a
three-year
(2019–2021)
field
experiment
was
conducted
in
Northwest
China.
We
compared
two
incorporation
methods
[straw
(SI)
straw-derived
biochar
(BI)]
removal
(NI)
at
four
application
rates
[0
(N0),
225
(N225),
300
(N300),
375
kg
ha–1
(N375)].
Results
indicated
that
NI,
both
SI
BI
significantly
increased
grain
yield
(GY),
(WP)
(SI
<
BI;
P
0.05).
The
maximum
GYs
were
achieved
SIN300
BIN225,
respectively.
Notably,
SIN300,
BIN225
enhanced
GY
by
10.8%
5.8%
improved
WP
19.2%
9.9%
(P
This
improvement
mainly
attributed
consumption
after
tasseling
transpiration
(T)
evapotranspiration
(ET).
Furthermore,
resulted
distribution
shallow
layers
(0–0.3
m).
Under
roots
exhibited
longer,
thinner
deeper
profile,
minimizing
redundancy
enhancing
efficiency
absorption
during
reproductive
stage
maize.
In
contrast,
shorter,
thicker,
shallower
roots,
leading
reduced
shoot-root
ratio
12.2%
Based
normalization
fitting
curves,
(240
ha–1)
24.5%,
achieving
98.7%
for
drip-irrigated
(16.98
Mg
kg–1).
Overall,
these
findings
provide
novel
strategy
sustainable
arid
irrigation
agriculture
similar
ecosystems.
