Comparer des méthodes

	Cartographie de la densité des mauvaises herbes	Efficacité d'utilisation de l'azote
Domaine	Agronomie	Agronomie
Famille	Process / pipeline	Process / pipeline
Année d'origine	2003	2005
Auteur d'origine	Roland Gerhards, Søren Christensen	Adrian Dobermann, Kenneth G. Cassman
Type	Spatial survey pipeline	Analytical pipeline
Source fondatrice	Gerhards, R., & Christensen, S. (2003). Real-time weed detection, decision making and patch spraying in maize, sugarbeet, winter wheat and winter barley. Weed Research, 43(6), 385-392.	Dobermann, A., & Cassman, K. G. (2005). Nitrogen use efficiency in cereals: mechanisms and genetic improvements. In Managing soil quality and crop productivity in intensive agriculture (pp. 15-40). CRC Press.
Alias	Weed mapping, Spatial weed survey, Weed sampling	NUE analysis, Nitrogen recovery efficiency, N balance assessment
Apparentées	5	5
Résumé	Weed Density Mapping is a spatial survey pipeline for measuring and mapping weed distributions across fields to support targeted herbicide application and management decisions. Developed by Gerhards, Christensen, and others in precision agriculture (2000s), this method combines field sampling or remote sensing with geostatistics to create weed pressure maps, enabling variable-rate control strategies.	Nitrogen Use Efficiency (NUE) assessment and optimization is an analytical pipeline for evaluating how effectively crops convert applied nitrogen fertilizer into grain, biomass, or economic output. Developed by agronomic researchers (Dobermann, Raun) in the 2000s, this method quantifies nitrogen losses and identifies management practices to improve both crop productivity and environmental sustainability.