In
this
study,
two
isolated
strains
of
nitrogen-fixing
bacteria,
NF1
(Bacillus
subtilis)
and
NF2
(Azotobacter
chroococcum),
were
added
to
cow
dung
compost
in
individual
(NF1,
NF2)
mixing
(NF3;
with
a
ratio
1:1).
The
results
revealed
that
the
total
nitrogen
levels
NF1,
NF3
treatments
increased
by
44.71%,
38.43%
55.35%,
respectively,
when
compared
Control
(without
bacteria
addition).
Meanwhile,
thermophilic
period
3
treated
groups
was
prolonged,
NH3
N2O
emissions
significant
reduced,
especially
for
NF-3
treatment.
Firmicutes
preponderant
stage,
while
Chloroflexi,
Proteobacteria
Bacteroidetes
mature
stage.
These
conformed
addition
composting
improved
bacterial
community
structure
benefited
retention.
Sustainability,
Год журнала:
2025,
Номер
17(2), С. 538 - 538
Опубликована: Янв. 12, 2025
This
study
used
ceramsite
and
superphosphate
as
exogenous
additives
for
composting
garden
wastes.
It
investigated
the
changes
in
temperature,
pH,
lignocellulose,
enzyme
activity,
humic
substrates,
humification
parameters
during
process.
A
total
of
four
treatments—T0
(CK),
T1
(ceramsite),
T2
(superphosphate),
T3
(superphosphate
+
ceramsite)—were
tested
a
50-day
experiment.
was
found
that
formation
compost
substrate
could
be
increased
to
14.69%
under
action
ceramsite.
In
addition,
promoted
lignocellulose
degradation,
improved
enhanced
material
conversion
At
same
time,
also
substrates
but
less
effective
than
Ceramsite
is
best
additive
promoting
maturation.
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Abstract
This
study
investigates
the
effects
of
biochar,
phosphogypsum,
and
calcium
superphosphate
on
composting
tomato
straw
to
improve
compost
quality
reduce
time.
Four
treatments
were
tested:
T1
(tomato
+
0.5%
EM
bacterial
agent),
T2
10%
biochar
EM),
T3
T4
phosphogypsum
EM).
Results
showed
that
these
additives
extended
high-temperature
phase
improved
maturity,
with
being
most
effective.
exhibited
highest
increase
in
humic
acid
(127.01%)
greatest
degradation
organic
matter
(63%)
cellulose
(69.82%),
outperforming
control
(p
<
0.05).
Microbial
analysis
revealed
Firmicutes,
Actinobacteriota,
Proteobacteria
dominated
phylum
level,
while
Bacillus,
Weissella,
Staphylococcus,
Halocella
key
genera.
Corynebacterium
was
identified
as
main
microorganism
responsible
for
spoilage
maturation.
highlights
biochar’s
role
enhancing
humification
composting.
Environmental Technology & Innovation,
Год журнала:
2024,
Номер
36, С. 103792 - 103792
Опубликована: Авг. 11, 2024
Chicken
manure,
corn
straw
and
oyster
shell
powder
(OSP)
were
used
as
raw
materials
for
organic-inorganic
combined
composting.
Experiments
designed
by
adding
different
amounts
of
OSP
(0
%,
20
40
%),
CK,
T1,
T2,
respectively.
In
final
composts,
the
pH
value
increased
to
8.72–9.08,
electrical
conductivity
ranged
from
2.08–3.82
mS·cm−1.
The
co-composting
could
effectively
reduce
ammonia
emissions
54.65
%
activate
calcium
component
37.5
%.
Addition
promoted
humification
humic
acid
86.1
This
calcium-based
compost
shells
(OSs)
activated
composting
was
plant
Brassica
napus
pot
experiment.
Compared
with
addition
after
composting,
significantly
growth
because
more
nitrogen,
humus
available
in
compost.
addition,
this
pH,
organic
matter
(OM)
exchangeable
content
acidic
soil.
general,
is
an
effective
method
realize
fertilizer
utilization
OSs.
process
make
full
use
achieve
nitrogen
retention
enhancement
during
meanwhile
morphology
can
be
high-quality
soil
conditioner
obtained.
