Visnyk agrarnoi nauky,
Год журнала:
2023,
Номер
101(2), С. 60 - 64
Опубликована: Фев. 15, 2023
Goal.
To
establish
the
expediency
and
effect
of
using
nitrification
inhibitor
3,4-dimethyl
pyrazole
phosphate
(DMPF)
in
combination
with
urea-ammonia
mixture
(KAS-32)
on
yield
winter
wheat
grain.
determine
difference
different
norms
KAS-32
without
addition
DMPF.
Methods.
Field
(stationary
experiment);
laboratory
(agrochemical
analysis
soil
plant
samples);
analytical
(systematic
long-term
results
field
experiments
meteorological
observations
mathematical
statistical
methods,
correlation
regression
analysis,
modeling,
empirical
generalization
established
patterns).
Results.
It
was
confirmed
that
use
DMPF
together
significantly
influenced
wheat.
At
same
rate
KAS-32,
300
kg/ha
variant
DMPF,
increased
by
4.5
t/ha,
or
12%
compared
to
option
where
used
at
rate,
In
a
reduced
250
an
kg/ha,
but
4.2
c/ha
11.2%
over
4
years
research
(2018–2021).
Conclusions.
variants
productivity
control
(without
fertilizers)
25.3–25.6
t/ha
(67.6–68.4%).
4.2–4.5
(11.2–12.0%)
(2018–2021)).
Frontiers in Microbiology,
Год журнала:
2022,
Номер
13
Опубликована: Июль 19, 2022
Nitrification
inhibitor
(NI)
is
often
claimed
to
be
efficient
in
mitigating
nitrogen
(N)
losses
from
agricultural
production
systems
by
slowing
down
nitrification.
Increasing
evidence
suggests
that
ammonia-oxidizing
archaea
(AOA)
and
bacteria
(AOB)
have
the
genetic
potential
produce
nitrous
oxide
(N
2
O)
perform
first
step
of
nitrification,
but
their
contribution
N
O
nitrification
remains
unclear.
Furthermore,
both
AOA
AOB
are
probably
targets
for
NIs,
a
quantitative
synthesis
lacking
identify
“indicator
microbe”
as
best
predictor
NI
efficiency
under
different
environmental
conditions.
In
this
present
study,
meta-analysis
assess
response
characteristics
application
was
conducted
relationship
between
amo
A
genes
conditions
evaluated.
The
dataset
consisted
48
papers
(214
observations).
This
study
showed
NIs
on
average
reduced
58.1%
emissions
increased
71.4%
soil
NH4+
concentrations,
respectively.
When
3,
4-dimethylpyrazole
phosphate
(DMPP)
applied
with
organic
inorganic
fertilizers
alkaline
medium
soils,
it
had
higher
efficacy
decreasing
than
acidic
soils.
abundance
dramatically
about
50%
most
types.
Decrease
addition
significantly
correlated
changes
(
R
=
0.135,
n
110,
P
<
0.01)
rather
AOA,
there
an
obvious
correlation
id="INEQ2">NH
Agronomy,
Год журнала:
2025,
Номер
15(2), С. 255 - 255
Опубликована: Янв. 21, 2025
The
application
of
nitrification
inhibitors
(NIs)
is
an
effective
way
to
reduce
soil
nitrogen
(N)
losses
and
increase
crop
N
uptake.
Yet,
the
efficacy
NIs
commonly
varies
with
dosages,
systems
environmental
conditions.
Hence,
clarifying
suitable
type
dosage
extremely
important
for
structuring
best
management
regime
at
a
regional
scale.
Here,
based
on
microcosm
experiments,
we
evaluated
influence
three
widely
used
[Dicyandiamide,
DCD;
3,4-Dimethylpyrazole
phosphate,
DMPP;
2-chloro-6-(trichloromethyl)
pyridine,
Nitrapyrin]
activity
intensively
cultivated
greenhouse
soil.
results
showed
that
both
DCD
DMPP
imposed
transient
inhibition
(less
than
five
days)
regardless
dosages
applied,
and,
contrary,
Nitrapyrin
presented
persistent
suppression,
longer
duration
action
by
higher
dosage.
Accordingly,
incorporation
2%
applied
rate
(w/w)
recommendable
local
intensive
production.
Further,
assessed
various
(0%,
0.25%,
0.5%,
5%)
abundance
community
groups
ammonia
oxidizers
[i.e.,
ammonia-oxidizing
archaea
(AOA),
bacteria
(AOB)
completely
(Comammox
Nitrospira)]
qPCR
high-throughput
amplicon
sequencing.
strongly
lowered
AOB
Comammox
Nitrospira
abundances
their
richness
even
lowest
also
significantly
altered
structure
all
tested
oxidizers,
average
relative
some
major
members
(i.e.,
Nitrososphaerales
Clade
Nitrososphaera,
A,
Nitrosospira
briensis
Clade,
multiformis
A.2
A-associated)
obviously
responded
incorporation.
Overall,
our
findings
indicated
were
more
sensitive
as
compared
AOA.
obtained
here
highlight
importance
optimizing
fertilization
in
vegetable
inhibits
probably
suppressing
level
herein.
