@Article{GrinsvenEGGHLLMPQBJ:2022:EsLoNi,
author = "van Grinsven, Hans J. M. and Ebanyat, Peter and Glendining,
Margaret and Gu, Baojing and Hijbeek, Renske and Lam, Shu Kee and
Lassaletta, Luis and Mueller, Nathaniel D. and Pacheco, Felipe
Siqueira and Quemada, Miguel and Bruulsema, Tom W. and Jacobsen,
Brian H.",
affiliation = "{} and {} and {} and {} and {} and {} and {} and {} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Establishing long-term nitrogen response of global cereals to
assess sustainable fertilizer rates",
journal = "Nature Food",
year = "2022",
volume = "3",
pages = "122--132",
note = "{Pr{\^e}mio CAPES Elsevier 2023 - ODS 2: Fome zero e Agricultura
sustent{\'a}vel}",
abstract = "Quantifying the long-term (LT) response of crop yields to nitrogen
fertilizer is critical to improving nutrient management practices.
Based on 25 LT field experiments, this study develops a generic LT
nitrogen response function for global cereals to characterize the
yield impacts, associated LT economic benefits and external costs
of changing nitrogen inputs. Insight into the response of cereal
yields to nitrogen fertilizer is fundamental to improving nutrient
management and policies to sustain economic crop benefits and food
sufficiency with minimum nitrogen pollution. Here we propose a new
method to assess long-term (LT) regional sustainable nitrogen
inputs. The core is a novel scaled response function between
normalized yield and total net nitrogen input. The function was
derived from 25 LT field trials for wheat, maize and barley in
Europe, Asia and North America and is fitted by a second-order
polynomial (R-2 = 0.82). Using response functions derived from
common short-term field trials, with soil nitrogen not in steady
state, gives the risks of soil nitrogen depletion or nitrogen
pollution. The scaled LT curve implies that the total nitrogen
input required to attain the maximum yield is independent of this
maximum yield as postulated by Mitscherlich in 1924. This unique
curve was incorporated into a simple economic model with valuation
of externalities of nitrogen surplus as a function of regional
per-capita gross domestic product. The resulting LT sustainable
nitrogen inputs range from 150 to 200 kgN ha(-1) and this interval
narrows with increasing yield potential and decreasing gross
domestic product. The adoption of LT response curves and external
costs in cereals may have important implications for policies and
application ceilings for nitrogen use in regional and global
agriculture and ultimately the global distribution of cereal
production.",
doi = "10.1038/s43016-021-00447-x",
url = "http://dx.doi.org/10.1038/s43016-021-00447-x",
issn = "2662-1355",
language = "en",
urlaccessdate = "29 jun. 2024"
}