Agronomy,
Journal Year:
2024,
Volume and Issue:
14(12), P. 2831 - 2831
Published: Nov. 28, 2024
Biological
soil
crusts
(biocrusts)
promote
plant
growth
by
regulating
nutrient
dynamics
and
enhancing
structure
through
the
microorganisms
they
host.
However,
their
impact
on
microbial
limitation,
a
critical
factor
in
cycling,
remains
underexplored.
This
study
hypothesized
that
different
types
of
biocrusts
modulate
limitations,
influencing
growth.
A
pot
experiment
was
conducted
to
evaluate
effects
four
treatments—control,
diatom,
Bacillus
megatherium,
diatom–B.
megatherium
biocrusts—on
structure,
availability,
ryegrass
after
40
days
cultivation.
The
results
indicated
B.
treatment
exacerbated
C
N
limitations
reduced
available
phosphorus
(by
41.80%)
biomass
29.19%)
compared
control.
diatom-B.
alleviated
but
increased
competition
between
microbes
plants,
impairing
performance.
In
contrast,
diatom
enhanced
significantly
improved
total
capillary
porosity
10%),
22.91%),
saturated
water
content
21.81%),
76.05%)
while
reducing
bulk
density
9.63%).
These
findings
provide
practical
insights
theoretical
foundation
for
utilizing
improve
fluvo-aquic
quality
sustainable
BIO Web of Conferences,
Journal Year:
2024,
Volume and Issue:
142, P. 01014 - 01014
Published: Jan. 1, 2024
Composting
treatment
is
one
of
the
important
ways
to
reuse
organic
kitchen
waste
resources.
In
this
study,
based
on
campus
environment
middle
school,
process
aerobic
composting
was
preliminarily
explored
in
plastic
barrels
with
produced
canteen
as
raw
material
and
commercially
available
starter
additive
(the
addition
amount
0.1%
-0.4
%).
The
results
showed
that:
a)
odor
pile
increased
intensity
first
then
decreased
process,
color
changed
from
light
dark.
At
end
composting,
generally
had
no
dark
brown;
peak
temperature
did
not
exceed
41℃;
b)
changes
all
treatments
a
trend
increasing
decreasing,
c)
T-3
(0.4
%
additive)
reached
high-temperature
period
day
3,
shortened
by
56%
compared
CK;
d)
effect
0.4%
dosage
best.
This
study
can
provide
some
reference
value
for
promotion
practice
school
campus.
