Publications

Leenen M., Pätzold S., Tóth G., Welp G. (2022). A LUCAS‐based mid‐infrared soil spectral library: Its usefulness for soil survey and precision agriculture. Journal of Plant Nutrition and Soil Science, (), . doi:10.1002/jpln.202100031

Background Mid-infrared spectroscopy (MIRS) is commonly recognized as a rapid and high throughput measurement technology for numerous soil properties, given that appropriate prediction models are calibrated. Soil spectral libraries (SSL) may reduce effort and costs for MIRS practical application. Ai…

Vogel S., Bönecke E., Kling C., Kramer E., Lück K., Nagel A., Philipp G., Rühlmann J., Schröter I., Gebbers R. (2020). 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…

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). 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…

Groh J., Diamantopoulos E., Duan X., Ewert F., Herbst M., Holbak M., Kamali B., Kersebaum K., Kuhnert M., Lischeid G., Nendel C., Priesack E., Steidl J., Sommer M., Pütz T., Vereecken H., Wallor E., Weber T., Wegehenkel M., Weihermüller L., Gerke H. (2020). Crop growth and soil water fluxes at erosion‐affected arable sites: Using weighing lysimeter data for model intercomparison. Vadose Zone Journal, 19(1), . doi:10.1002/vzj2.20058

Agroecosystem models need to reliably simulate all biophysical processes that control crop growth, articularly the soil water fluxes and nutrient dynamics. As a result of the erosion history, truncated and colluvial soil profiles coexist in arable fields. The erosion-affected field-scale soil spatia…

Strobbia P., Odion R., Maiwald M., Sumpf B., Vo-Dinh T. (2020). Direct SERDS sensing of molecular biomarkers in plants under field conditions. Analytical and Bioanalytical Chemistry, 412(14), 3457-3466. doi:10.1007/s00216-020-02544-5

Molecular biomarkers such as microRNAs (miRNAs) play important roles in regulating various developmental processes in plants. Understanding these pathways will help bioengineer designing organisms for efficient biomass accumulation. Current methods for RNA analysis require sample extraction and mult…

Sumpf B. (2020). High-brightness wavelength stabilized diode lasers for sensor systems and non-linear frequency conversion. Conference on Lasers and Electro-Optics, OSA Technical Digest, (), . doi:10.1364/CLEO_AT.2020.AF3I.1

High-brightness wavelength stabilized diode lasers emitting between 750nm and 1100nm with output powers up to 15W for sensor applications such as biomedical imaging and spectroscopy as well as for non-linear frequency conversion will be presented.

Maiwald M., Sumpf B. (2020). 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…

Heil K., Lehner A., Schmidhalter U. (2020). 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). 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…

Pätzold S., Leenen M., Frizen P., Heggemann T., Wagner P., Rodionov A. (2020). Predicting plant available phosphorus using infrared spectroscopy with consideration for future mobile sensing applications in precision farming. Precision Agriculture, 21(4), 737-761. doi:10.1007/s11119-019-09693-3

Abstract Phosphorus (P) fertilisation recommendations rely primarily on soil content of plant available P (Pavl) that vary spatially within farm fields. Spatially optimized P fertilisation for precision farming requires reliable, rapid and non-invasive Pavl determination. This laboratory study aime…