Agriculture,
Journal Year:
2025,
Volume and Issue:
15(5), P. 446 - 446
Published: Feb. 20, 2025
In
order
to
study
the
effect
of
cotton
stalk
particle
size
on
humification,
stalks
different
lengths
(5
cm,
10
15
cm)
were
co-composted
with
pig
manure
for
49
days.
The
results
showed
that
cm
treatment
(T2)
maintained
a
high-temperature
stage
8
days,
and
total
organic
carbon
decreased
by
60.0%.
T2
highest
cellulose
(57.0%)
hemicellulose
(77.1%)
degradation
rate,
lowest
lignin
accumulation
(69.8%),
humus
content
(34.94
g/kg),
which
was
88.1%
higher
than
in
initial
stage.
FTIR
analysis
revealed
significant
changes
functional
groups.
aromatic
C=C
stretching
vibration
(1650
cm−1)
group
increased
79.8%,
showing
better
aromatization
degree
other
two
Two-dimensional
spectroscopy
phenolic
alcohol
hydroxyl
groups
first
involved
followed
polysaccharides,
hemicellulose,
lignin,
structures,
enhanced
this
material
transformation
pathway.
Microbial
diversity
identified
seven
main
phyla,
among
Planctomycetota
Acidobacteria
abundance,
closely
related
cellulose,
compounds.
Second,
abundance
characteristic
species
such
as
Planifilum
fulgidum
also
certain
advantages
group.
summary,
optimized
microbial
activity
matter
effectively
regulated
composting
humification
process.
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(4), P. 778 - 778
Published: March 22, 2025
The
accumulation
of
copper
(Cu)
and
zinc
(Zn)
from
piglet
feed,
coupled
with
inadequate
compost
maturation,
hinders
the
safe
land
application
pig
manure
(PM).
This
study
employed
self-organizing
maps
(SOMs)
integrated
three-dimensional
excitation–emission
matrix
fluorescence
spectroscopy
(3D-EEM)
parallel
factor
analysis
(PARAFAC)
to
evaluate
PM
maturity
Cu/Zn
passivation
under
different
biochar
(BC)
dosages
(0%,
8%,
10%,
12%).
results
revealed
that
SOM
clustering
effectively
distinguished
composting
phases
organic
matter
transformation
trends,
while
network
identified
key
microbial
modules
(M5,
M6)
linked
passivation.
Moreover,
12%
BC
accelerated
maximizing
humic
content
(C1:
anthropogenic;
C4:
terrestrial)
by
increasing
Luteimonas
abundance
(241.98%)
reducing
Terrisporobacter
(92%).
It
also
achieved
highest
Cu
(36.36%)
Zn
(32.34%)
Although
10%
promoted
C4
synthesis
but
inhibited
C1
formation,
it
ultimately
reached
a
similar
level
BC.
Additionally,
demonstrated
comparable
(34.85%)
(27.89%)
passivation,
making
more
cost-effective
alternative.
These
findings
highlight
as
robust
tool
for
evaluation,
optimizing
improving
efficiency.
Resources Environment and Sustainability,
Journal Year:
2024,
Volume and Issue:
17, P. 100166 - 100166
Published: Aug. 10, 2024
Direct
land
application
of
conventional
compost
may
cause
ecological
risks
due
to
the
presence
heavy
metals.
To
effectively
reduce
metal
bioavailability
in
compost,
a
multi-component
passivator
comprising
Candida
utilis,
sodium
humate,
zeolite
and
attapulgite
was
developed,
which
showed
passivation
rates
59.28%,
86.93%
38.95%
for
zinc
(Zn),
copper
(Cu),
ferrum
(Fe),
respectively,
compost.
The
addition
customized
not
only
reduced
mobility
metals,
but
also
improved
quality
further
increased
abundance
lignocellulose-degrading
beneficial
microorganisms
Subsequent
fertilization
results
that
product
fermented
with
greatly
growth
Chinese
cabbage,
significant
increases
height,
weight,
root
length,
total
chlorophyll
contents
97.63%,
210.13%,
20.42%,
40.38%,
respectively.
It
can
be
concluded
custom-made
is
expected
good
additive
passivation,
high-quality
plant
growth.
ACS ES&T Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 8, 2024
Promoting
humification
during
composting
is
of
pivotal
significance
for
converting
organic
waste
to
value-added
fertilizer.
Traditional
additives
enhanced
commonly
suffer
from
low
efficiency
and
a
large
dosage.
Herein,
we
presented
novel
effective
technique
with
great
application
potential
promote
via
simple
addition
trace
MnFe2O4,
behind
which
the
essential
mechanism
was
interpreted
both
chemical
biological
perspectives.
Results
indicated
that
an
economical
dosage
MnFe2O4
(0.02
wt
%),
content
humic
acid
(HA)
index
(HI)
were
increased
by
15.2
18.7%
in
comparison
control
group,
respectively.
The
steering
such
revealed
through
analysis
precursor
substances
evolution
HA
structural
characterization.
Specifically,
catalyzed
polyphenol-Maillard
reaction,
leading
rapid
oxidation
subsequent
polymerization
substances.
Meanwhile,
diversity
microbial
communities
as
well
activities
laccase
peroxidase
demonstrated
relative
abundance
laccase/peroxidase-producing
bacteria
thus
elevated
enzymatic
laccase/peroxidase,
played
crucial
roles
catalyzing
reaction
humification.
This
study
demonstrates
could
serve
promising
additive
thereby
produce
composts.
Environmental Research Communications,
Journal Year:
2023,
Volume and Issue:
5(11), P. 115012 - 115012
Published: Nov. 1, 2023
Abstract
Aerobic
composting
was
carried
out
in
a
greenhouse
using
home-made
compost
bins,
and
the
changes
humus(HS)
composition
of
composted
manure
with
different
proportions
wood
vinegar(WV)
added
to
pig
rice
straw
as
raw
materials
were
studied.
Since
temperature,
water
content
pH
very
from
those
summer
compost,
they
used
basic
evaluation
indices
maturity.
Rice
straw(RS)
Swine
(SM)
test
materials,
water-soluble
carbon
(C
WSS
),
extractable
humic
HE
HA
FA
)
HU
investigated,
humus
decomposition
coefficients
dynamically
analyzed.
The
findings
demonstrated
that
1.25%
1.75%
vinegar
affect
humification.
Meanwhile,
results
Ratio
absorbance
organic
substances
at
465
665
under
UV
spectrophotometer
(E4/E6)
indicated
aromatic
ring
WV
solution
more
stable
after
condensation,
hominin
HS
stabilizing
component
complete
concentration
1.75%.
Consequently,
this
study
revealed
efficient
stimulating
pile
cold
conditions.
