Toxics,
Journal Year:
2023,
Volume and Issue:
11(3), P. 262 - 262
Published: March 12, 2023
Soil
acidification
in
tea
plantations
leads
to
an
excessive
heavy
metal
content
tea,
decreasing
its
yield
and
quality.
How
apply
shellfish
organic
fertilizers
improve
soil
ensure
the
safe
production
of
is
still
not
clear.
A
two-year
field
experiment
was
conducted
which
characterized
by
a
pH
4.16
concentrations
lead
(Pb)
(85.28
mg/kg)
cadmium
(Cd)
(0.43
exceeding
standard.
We
used
amendments
(750,
1500,
2250
kg/ha)
(3750,
7500
amend
soils.
The
experimental
results
showed
that
compared
with
treatment
without
any
amendment
(CK),
increased
0.46
on
average;
available
nitrogen,
phosphorus,
potassium
contents
21.68%,
19.01%,
17.51%
respectively;
Pb,
Cd,
Cr,
As
decreased
24.64%,
24.36%,
20.83%,
26.39%,
respectively.
In
comparison
CK,
average
also
90.94
kg/ha;
polyphenols,
free
amino
acids,
caffeine,
water
extract
9.17%,
15.71%,
7.54%,
5.27%,
As,
Cr
significantly
(p
<
0.05)
29.44-61.38%,
21.43-61.38%,
10.43-25.22%,
10.00-33.33%,
greatest
effects
all
parameters
occurred
largest
both
(2250
fertilizer
(7500
combined.
This
finding
suggests
optimized
could
be
as
technical
measure
health
quality
acidified
future.
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: March 11, 2024
Rational
fertilization
is
the
main
measure
to
improve
crop
yield,
but
there
are
differences
in
optimal
effects
of
nitrogen
(N),
phosphorus
(P)
and
potassium
(K)
rationing
exhibited
by
same
species
different
regions
soil
conditions.
In
order
determine
optimum
ratio
for
high
yield
Sapindus
mukorossi
western
Fujian
provide
scientific
basis.
We
carried
out
experimental
design
with
ratios
N,
P
K
investigate
on
yield.
leaf
physiology
properties.
Results
showed
that
reached
highest
value
(1464.58
kg
ha
-1
)
at
N
2
treatment,
which
increased
1056.25
compared
control.
There
were
significant
responses
properties
physiological
factors
treatments.
Factor
analysis
integrated
scores
characteristic
under
treatment
highest,
effectively
improved
fertility
traits.
The
a
highly
linear
positive
correlation
(r=0.70,
p
<0.01).
Passage
available
content,
organic
carbon
area
index
key
affect
RDA
most
important
recommend
was
0.96Kg
0.80Kg
0.64Kg
per
plant.
Reasonable
can
traits,
while
excessive
has
negative
fertility,
This
study
provides
theoretical
support
cultivation
woody
oil
seed
species.
