P-Campus Lecture Series WS 2020/21

FORTNIGHTLY | THURSDAYS | 3.00 PM

In the winter semester 2020/2021, the Leibniz ScienceCampus Phosphorus Research organizes a lecture series with interesting topics in the field of phosphorus research again. The presentations are expected to take place on Thursdays at 3.00 pm. They are organized as webinar via the DFN system and are accessible for anyone after registration. The presentations will be given in German, the slides of the presentation are expected to be in English. Questions to the lecturer may be in German or English.
A list of all set presentations incl. registration can be found below. Please register at least 2 days in advance of the presentation date. You receive the access data afterwards. If there are less than 3 registrations we reserve the right to cancel the presentation. In such a case, you will be informed in time.
Please make sure that your speakers and (if applicable) your microphone are connected to DFN during the presentation (must be activated in the browser bar). If you have any questions about this please contact Maxi Hoche (maxi.hoche@io-warnemuende.de). If you have any subject-specific questions concerning the presentations please contact Dana Zimmer (dana.zimmer@io-warnemuende.de). We are looking forward to active participation and exciting discussions.

download program

Presentations

15.10.2020 - Electron microscopy in phosphorus research: Methods of elemental analysis and ultrastructural investigation

Course Description
Next to the structural characterization, electron microscopy allows the identification and mapping of the elemental composition in sample materials with high precision. Energy dispersive X-ray  spectroscopy (EDX) and electron energy loss spectroscopy (EELS) are widely applied in electron microscopy to deduce information on the sample composition, e.g. on the presence and distribution of phosphorus, by interactions with the incident beam electrons. The seminar will introduce the background and potential of these analytical methods in scanning- and transmission electron microscopy (SEM / TEM) on biological samples as well as in material science applications. Requirements for sample preparation will be discussed along with examples of such analyses from recent research projects and future perspectives for analytical electron microscopy using high resolution TEM.

Date/Time
15.10.2020 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
PD Dr. sc. nat. Marcus Frank (Rostock University Medical Center, Medical Biology and Electron Microscopy Centre)

Language
German / slides of the presentation will be in English

Participation Fee
free of charge

Registration

29.10.2020 - Phosphat - ein bedeutendes Element aus landwirtschaftlicher und ökologischer Sicht

Course Description
Phosphat in der Landwirtschaft gelangt über den Abbau von Rohphosphaten und deren Verarbeitung zu Düngemitteln in den Boden und von dort in den weiteren Stoffkreislauf. Mindestens zwei Aspekte sind bei der Betrachtung des Nährstoffes Phosphor von Bedeutung, die Sicherung der Bereitstellung von Nahrungsmitteln im globalen Maßstab und die Vermeidung von Umweltbelastungen in Ländern mit intensiver Landwirtschaft.

Ein zweiter Aspekt ergibt sich aus der fortgeschrittenen Akkumulation von Phosphaten im Boden. Phosphat ist einer der drei Hauptnährstoffe im landwirtschaftlichen Pflanzenbau und somit einwesentliches Element in Agro-Ökosystemen. Die mineralische und organische Phosphat-Düngungsowie die Verwertung von P-haltigen Abprodukten in der intensiven Landwirtschaft führten infolge des schnellen Rückganges der P-Löslichkeit zu einer erheblichen, wenngleich regionalen, P-Akkumulationin Böden. Andererseits zeigt sich in den letzten Jahre immer mehr, dass inbestimmten Regionen der Anteil des pflanzenverfügbaren P deutlich abnimmt.

Infolgedessen ist es notwendig, die Dynamik von P-Transformationsprozessen im System Boden-Pflanze besser zu verstehen, um ein nachhaltiges Managementsystem für die endliche Ressource Phosphor zu etablieren.

Die Komplexität der P-Transformationsprozesse im Boden (Sorption/Desorption, Fixierung, Diffusion) erschwert zum einen die Bestimmung aller Einflußfaktoren in ihrer Gesamtheit als auchdie selektive analytische Trennung der einzelnen Prozesse. Die P-Sorptionskinetik gliedert sich in zwei zeitlich voneinander getrennte Reakionsphasen mit unterschiedlicher Kinetik: die relativschnelle P-Adsorption, die als reversibel betrachtet wird und die folgende langsame Reaktion, einirreversibler Diffusions- und Fixierungsprozeß. Bei der Interpretation der Mechanismen der langsamen P-Sorption gibt es noch Widersprüche, da eine direkte analytische Trennung zwischender schnellen und der langsamen P-Sorption nicht möglich ist.

Die Phosphat Desorption bzw. Freisetzung ist die Umkehrung der Sorption. Auch hier werdenschnelle und langsame Reaktionsprozesse unterschieden. Das Nachlieferungsvermögen des Bodensund die Desorptionsgeschwindigkeit des an der festen Bodenphase unterschiedlich gebundenenPhosphates (anorganisch und organische gebundenes P) bestimmen die Höhe der P-Konzentrationin der Bodenlösung zu einem bestimmten Zeitpunkt. Zur Beurteilung der Verfügbarkeit von Boden-Phosphat sind zwei Formen zu unterscheiden i) teilweise direkt verfügbares P (labiles P) und ii) indirekt verfügbares P, das erst nach Diffusions- und Lösungsprozessen in die verfügbare Form übergeht.


Date/Time
29.10.2020 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
apl. Prof. Dr. Dirk Freese (BTU Cottbus-Senftenberg)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

 
There is no presentation planned for the first weeks in November, since the P-Campus symposium will take place on 16/17 November. The lecture series will be continued afterwards.

26.11.2020 - Anwendungsbeispiele spektrometrischer/spektroskopischer Verfahren in der P-Speziierung: 31P-NMR und P-XANES

Course Description
TBA


Date/Time
26.11.2020 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
Prof. Dr. agr. habil. Peter Leinweber (University of Rostock)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

10.12.2020 - soil biology and P mobilization

Course Description
TBA


Date/Time
10.12.2020 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
apl. Prof. Dr. agr. habil. Christel Baum (University of Rostock)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

14.01.2021 - Landnutzungs-Governance und Phosphor-Governance: Eine Gesamtbetrachtung

Course Description
TBA


Date/Time
14.01.2021 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
Prof. Dr. Dr. Felix Ekardt (Research Unit Sustainability and Climate Policy and University of Rostock)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

11.02.2021 - soil microbiome

Course Description
TBA


Date/Time
11.02.2021 / 2:00 pm - ca. 3:30 pm (incl. questions)

Lecturer
Dr. rer. nat. Stefanie Schulz (Helmholtz Zentrum München)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

25.02.2021 - Ordnungsrechtliche und ökonomische Instrumente für ein nachhaltiges Phosphor-Management

Course Description
The presentation starts with an introduction on the key aspects of sustainable P management. Based on that, the relevant legal acts for P management are analysed, including fertilizer law, organic farming legislation and the Common Agricultural Policy of the EU. It is shown that existing legislation includes some important starting points but fails to achieve sustainable P management due to structural governance problems like enforcement deficits as well as rebound and shifting effects. To tackle these typical obstacles of command-and-control law, economic instruments such as taxes and cap-and-trade schemes are proposed.

Subsequently, economic instruments are subjected to an impact analysis for a broad range of possible instruments regulating various P-related parameters: (1) P fertilizers, P additives, P surpluses and P losses or (2) the input and output factors of animal husbandry or (3) more comprehensive parameters such as greenhouse gases, fossil fuels, and land use. The most promising instruments are picked out. Towards the end of the presentation, a combination of instruments is recommended to achieve a sustainable P management with its manifold aspects.


Date/Time
25.02.2021 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
Dr. agr. Beatrice Garske, M.Sc., LL.M. oec. (Research Unit Sustainability and Climate Policy and University of Rostock)

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

11.03.2021 - P metabolism

Course Description
TBA


Date/Time
11.03.2021 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
Dr. troph. Michael Oster (Leibniz Institute for Farm Animal Biology (FBN))

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration

25.03.2021 - Potato diversity and phosphorus efficiency

Course Description

P efficiency mechanisms, intra-specific variability of potato and importance of wild relatives

The Gross Luesewitz Potato Collections (GLKS) collect, preserve and study plant genetic resources of cultivated and wild potatoes. With more than 6000 accessions, the GLKS is the second largest potato collection within the European Cooperative Programme for Plant Genetic Resources (ECPGR). The potato genetic resources differ in regard to several characteristics such as tuber shape and color, disease resistance or ingredients. Consequently, a high variability in terms of nutrient use efficiency can be expected as well. In particular old varieties or landraces from the Andes can provide a considerable (diversity) potential. This seminar introduces the importance of an adequate P supply of potato for tuber yield and quality, deals with P efficiency mechanisms and their variability in potato and gives an outlook on the role of potato wild relatives for improving P efficiency.

Date/Time
25.03.2021 / 3:00 pm - ca. 4:30 pm (incl. questions)

Lecturer
Dr. Silvia Bachmann-Pfabe (Leibniz Institute of Plant Genetics and Crop Plant Research (IPK))

Language
German / slides of the presentation will be in English

Participation fee
free of charge

Registration