Effects of tillage and organic fertilizer substitution of chemical fertilizer on anti-aging properties, photosynthesis and maize yield of maize leaves
Abstract
Corn
is
one
of
the
favorite
crops
in
China
and
grown
a
large
area
drought-tolerant
areas.
Tillage
practices
fertilizer
management
are
important
for
crop
growth,
there
lack
research
this
area,
especially
places
where
rainfall
scarce.
Therefore,
it
great
significance
to
explore
anti-aging
characteristics
photosynthesis
maize
leaves
by
replacing
inorganic
with
organic
under
different
tillage
methods.
From
2022
2023,
two
methods,
rotary
+
subsoiling
(R
S),
three
alternative
(P1,
P2,
P3)
four
control
CK
treatments
were
used
measure
POD
SOD
enzyme
activities,
PRO
MDA
contents,
yield
at
growth
stages.The
results
showed
that:
(1)
With
advancement
period,
P1
treatment
was
optimal
substitution
application
Obviously,
R
S
farming
superior
traditional
farming.
The
contents
SOD,
41.89%,
56.95%
15.91%
higher
than
those
CK,
40.21%,
21.22%
16.94%
P1,
respectively,
content
38.68%
lower
that
11.37%
respectively.
When
P1
performed,
resulting
Pn
23.73%
6.01%
P1.
After
S,
Tr
reduced
24.06%
compared
11.14%
R.
(2)The
S)
always
better
(R)
alone,
Yield
highest
tillage,
an
average
13663.79kg/hm2,
which
6.39%
P2
treatment,
7.90%
P3
14.67%
Compared
(R),
obtained
2.53%
higher.(3)At
grain
filling
stage,
superoxide
dismutase
(SOD)
activity,
peroxidase
(POD)
proline
(PRO)
content,
net
photosynthetic
rate
(Pn),
number,
ear
length
100-grain
weight
significant
positive
correlation
total
yield,
but
negatively
correlated
bald
tip
length.
According
our
experiment,
can
be
seen
activity
instead
chemical
best,
ability
strongest,
highest.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 12, 2024
Язык: Английский