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Studies of 'food globalisation' have traced the dispersal of cereals across prehistoric Eurasia. The degree to which these crops were accompanied by knowledge of soil and water preparation is less well known, however. The authors use stable isotope and archaeobotanical analyses to trace long-term trends in cultivation practices on the Loess Plateau (6000 BC-AD 1900). The results indicate that ancient farmers cultivated grains originating in South-west Asia and used distinct strategies for different species. Barley was integrated into pre-existing practices, while wheat was grown using novel soil and water management strategies. These distinct approaches suggest that the spread of prehistoric crops and knowledge about them varied by local context. Keywords: East Asia, Loess Plateau, stable isotope analysis, archaeobotany, crop management, manuring, Introduction The dispersal of crops and farming techniques across prehistoric Eurasia led to profound social transformations and ecological impacts across the continent (Jones et al. 2011; Liu et al. 2019). [...]