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@ARTICLE{Kuppe:1028497,
author = {Kuppe, Christian W. and Postma, Johannes A.},
title = {{B}enefits and limits of biological nitrification
inhibitors for plant nitrogen uptake and the environment},
journal = {Scientific reports},
volume = {14},
issn = {2045-2322},
address = {[London]},
publisher = {Nature Research, part of Springer Nature},
reportid = {FZJ-2024-04649},
pages = {15027},
year = {2024},
abstract = {Plant growth and high yields are secured by intensive use
of nitrogen (N) fertilizer, which, however, pollutes the
environment, especially when N is in the form of nitrate.
Ammonium is oxidized to nitrate by nitrifiers, but roots can
release biological nitrification inhibitors (BNIs). Under
what conditions does root-exudation of BNIs facilitate
nitrogen N uptake and reduce pollution by N loss to the
environment? We modeled the spatial–temporal dynamics of
nitrifiers, ammonium, nitrate, and BNIs around a root and
simulated root N uptake and net rhizosphere N loss over the
plant’s life cycle. We determined the sensitivity of N
uptake and loss to variations in the parameter values,
testing a broad range of soil–plant-microbial conditions,
including concentrations, diffusion, sorption,
nitrification, population growth, and uptake kinetics. An
increase in BNI exudation reduces net N loss and, under most
conditions, increases plant N uptake. BNIs decrease uptake
in the case of (1) low ammonium concentrations, (2) high
ammonium adsorption to the soil, (3) rapid nitrate- or slow
ammonium uptake by the plant, and (4) a slowly growing or
(5) fast-declining nitrifier population. Bactericidal
inhibitors facilitate uptake more than bacteriostatic ones.
Some nitrification, however, is necessary to maximize uptake
by both ammonium and nitrate transporter systems. An
increase in BNI exudation should be co-selected with
improved ammonium uptake. BNIs can reduce N uptake, which
may explain why not all species exude BNIs but have a
generally positive effect on the environment by increasing
rhizosphere N retention.},
cin = {IBG-2},
ddc = {600},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217) / DFG project 491111487 -
Open-Access-Publikationskosten / 2022 - 2024 /
Forschungszentrum Jülich (OAPKFZJ) (491111487) / Root2Res -
Root2Resilience: Root phenotyping and genetic improvement
for rotational crops resilient to environmental change
(101060124)},
pid = {G:(DE-HGF)POF4-2171 / G:(GEPRIS)491111487 /
G:(EU-Grant)101060124},
typ = {PUB:(DE-HGF)16},
pubmed = {38951138},
UT = {WOS:001260844500059},
doi = {10.1038/s41598-024-65247-2},
url = {https://juser.fz-juelich.de/record/1028497},
}