首页|Advances in the estimations and applications of critical nitrogen dilution curve and nitrogen nutrition index of major cereal crops. A review
Advances in the estimations and applications of critical nitrogen dilution curve and nitrogen nutrition index of major cereal crops. A review
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NSTL
Elsevier
? 2022 Elsevier B.V.Nitrogen (N) is one of the decisive elements for plant growth, crop biomass accumulation, and yield formation of cereal crops. However, managing N in crop production and comparing N use efficiency are challenging without prior knowledge of in-season crop N status. The development of critical N (Nc) dilution curves based on allometry between plant metabolic and structural compartments allows the estimation of crop N nutrition status by determining the N nutrition index (NNI). The purpose of this article is to review the research progress on the development of Nc curves in three major cereal crops (wheat, maize, and rice). The focus of this review paper is to compare the Nc curves of major cereals developed worldwide and to explain the differences in these Nc curve parameters in light of genotype through the management of environmental interactions. Additionally, this review provides an update on the most relevant methods for non-destructive estimation of the NNI of major cereal crops using various remote sensing technologies for large-scale applications. This review also sheds light on the applicability of Nc curve-based NNI for in-season crop N diagnosis, crop N requirement, crop grain yield, and quality prediction. Moreover, this review outlines future research directions to expand the impact of this approach on crop production.
Cereal cropsCritical N dilution curveNNIRemote sensing
Cao W.、Cao Q.、Ata-UI-Karim S.T.、Yoichiro K.、Yuan F.、Miao Y.、Tian X.、Li X.、Li Y.、Cheng T.、Tang L.、Liu X.、Tian Y.、Zhu Y.
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National Engineering and Technology Center for Information Agriculture MOE Engineering and Research Center for Smart Agriculture MARA Key Laboratory for Crop System Analysis and Decision Making Jiangsu Key Laboratory for Information Agriculture Collaborat
Graduate School of Agricultural and Life Sciences The University of Tokyo
Department of Geography Minnesota State University
Precision Agriculture Center Department of Soil Water and Climate University of Minnesota
College of Resources and Environmental Sciences China Agricultural University
NSTL
Elsevier
