Publications

Bönecke E., Meyer S., Vogel S., Schröter I., Gebbers R., Kling C., Kramer E., Lück K., Nagel A., Philipp G., Gerlach F., Palme S., Scheibe D., Zieger K., Rühlmann J. (2021.0). Guidelines for precise lime management based on high-resolution soil pH, texture and SOM maps generated from proximal soil sensing data. Precision Agriculture, 22(2), 493-523. doi:10.1007/s11119-020-09766-8

AbstractSoil acidification is caused by natural paedogenetic processes and anthropogenic impacts but can be counteracted by regular lime application. Although sensors and applicators for variable-rate liming (VRL) exist, there are no established strategies for using these tools or helping to impleme…

Yin X., Kersebaum K., Beaudoin N., Constantin J., Chen F., Louarn G., Manevski K., Hoffmann M., Kollas C., Armas-Herrera C., Baby S., Bindi M., Dibari C., Ferchaud F., Ferrise R., de Cortazar-Atauri I., Launay M., Mary B., Moriondo M., Öztürk I., Ruget F., Sharif B., Wachter-Ripoche D., Olesen J. (2020.0). Uncertainties in simulating N uptake, net N mineralization, soil mineral N and N leaching in European crop rotations using process-based models. Field Crops Research, 255(), 107863. doi:10.1016/j.fcr.2020.107863

Modelling N transformations within cropping systems is crucial for N management optimization in order to increase N use efficiency and reduce N losses. Such modelling remains challenging because of the complexity of N cycling in soil–plant systems. In the current study, the uncertainties of six wide…

Heil K., Lehner A., Schmidhalter U. (2020.0). Influence of Climate Conditions on the Temporal Development of Wheat Yields in a Long-Term Experiment in an Area with Pleistocene Loess. Climate, 8(9), 100. doi:10.3390/cli8090100

Field experiments were conducted to test different agronomic practices, such as soil cultivation, fertilization, and pest and weed management, in highly controlled plot cultivation. The inter-annual yields and the interpretation of such experiments is highly affected by the variability of climatic c…

Falconnier G., Corbeels M., Boote K., Affholder F., Adam M., MacCarthy D., Ruane A., Nendel C., Whitbread A., Justes É., Ahuja L., Akinseye F., Alou I., Amouzou K., Anapalli S., Baron C., Basso B., Baudron F., Bertuzzi P., Challinor A., Chen Y., Deryng D., Elsayed M., Faye B., Gaiser T., Galdos M., … (2020.0). Modelling climate change impacts on maize yields under low nitrogen input conditions in sub‐Saharan Africa. Global Change Biology, 26(10), 5942-5964. doi:10.1111/gcb.15261

Smallholder farmers in sub-Saharan Africa (SSA) currently grow rainfed maize with limited inputs including fertilizer. Climate change may exacerbate current production constraints. Crop models can help quantify the potential impact of climate change on maize yields, but a comprehensive multi-model a…

Vrábel J., Képeš E., Duponchel L., Motto-Ros V., Fabre C., Connemann S., Schreckenberg F., Prasse P., Riebe D., Junjuri R., Gundawar M., Tan X., Pořízka P., Kaiser J. (2020.0). Classification of challenging Laser-Induced Breakdown Spectroscopy soil sample data - EMSLIBS contest. Spectrochimica Acta Part B: Atomic Spectroscopy, 169(), 105872. doi:10.1016/j.sab.2020.105872

We present results of the classification contest organized for the EMSLIBS 2019 conference. For this publication, we chose only the five best approaches and discussed their algorithm in detail. The main focus of the contest reflected both recent and long-term challenges of Laser-Induced Breakdown Sp…

Pätzold S., Leenen M., Heggemann T. (2020.0). Proximal Mobile Gamma Spectrometry as Tool for Precision Farming and Field Experimentation. Soil Systems, 4(2), 31. doi:10.3390/soilsystems4020031

Soils naturally emit gamma radiation that can be recorded using gamma spectrometry. Spectral features are correlated with soil mineralogy and texture. Recording spectra proximally and in real-time on heterogeneous agricultural fields is an option for precision agriculture. However, the technology ha…

Maiwald M., Sumpf B. (2020.0). Improving Raman spectroscopy using diode lasers at 785 nm for shifted excitation Raman difference spectroscopy. Proc. SPIE 11257, Plasmonics in Biology and Medicine XVII, (), . doi:10.1117/12.2554014

Shifted excitation Raman difference spectroscopy (SERDS) has been successfully demonstrated for separating Raman signals from background interferences. This powerful tool has been applied for in situ applications such as in vivo diagnostics and outdoor investigations. Here, diode lasers are well sui…

Theurer L., Maiwald M., Sumpf B. (2021.0). Shifted excitation Raman difference spectroscopy: A promising tool for the investigation of soil. European Journal of Soil Science, 72(1), 120-124. doi:10.1111/ejss.12928

AbstractIn this paper we demonstrate shifted excitation Raman difference spectroscopy (SERDS) for soil analysis as a proof of concept. Confocal Raman microscopy is performed for sample analysis as well as for qualitative comparison with our SERDS experiments. Raman spectra of a soil sample show huge…

Erler A., Riebe D., Beitz T., Löhmannsröben H., Gebbers R. (2021.0). Soil Nutrient Detection for Precision Agriculture Using Handheld Laser-Induced Breakdown Spectroscopy (LIBS) and Multivariate Regression Methods (PLSR, Lasso and GPR). Sensors, 20(2), 418. doi:10.3390/s20020418

Precision agriculture (PA) strongly relies on spatially differentiated sensor information. Handheld instruments based on laser-induced breakdown spectroscopy (LIBS) are a promising sensor technique for the in-field determination of various soil parameters. In this work, the potential of handheld LIB…

Vogel S., Bönecke E., Kling C., Kramer E., Lück K., Nagel A., Philipp G., Rühlmann J., Schröter I., Gebbers R. (2020.0). Base Neutralizing Capacity of Agricultural Soils in a Quaternary Landscape of North-East Germany and Its Relationship to Best Management Practices in Lime Requirement Determination. Agronomy, 10(6), 877. doi:10.3390/agronomy10060877

Despite being a natural soil-forming process, soil acidification is a major agronomic challenge under humid climate conditions, as soil acidity influences several yield-relevant soil properties. It can be counterbalanced by the regular application of agricultural lime to maintain or re-establish soi…