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Workshop on crop rotation modeling

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Prof. Claas Nendel from ZALF and Dr. Til Feike from the Julius Kühn Institute welcomed over 50 participants to a virtual workshop on "Modelling Crop Rotations" on 11 November 2022.

This workshop, jointly organised by Commission IV "Plant Nutrition and Soil Fertility" of the German Soil Science Society and the working group "Yield Physiology and Growth Models" of the German Society for Agronomy, followed on from an event held in 2020, in which the particular challenge of describing crop rotations with mathematical models had already been elaborated. In this follow-up workshop, further progress in the simulation of water and nutrient dynamics under complex crop rotations was presented using the example of lysimeter experiments at the TU Munich and also the PatchCrop experiment at ZALF.

These simulation studies were flanked by analyses of crop rotations by remote sensing, and the use of agroecosystem simulation models for the assessment of climate change impacts and the economic potential of legumes in crop rotations. In his summary of the event, Prof. Nendel emphasised that the models are in principle able to represent most crop rotation effects, but that there is still a lack of good experimental data to cover the diversity of crop rotations, especially in organic farming. This close cooperation between experimenters, data analysts and modellers is particularly intensive at ZALF and JKI.

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