P-Campus-Ringvorlesung am 07.03.24

Am 7. März findet der erste Vortrag der P-Campus-Ringvorlesung 2024 statt. Yue Hu von der Universität Rostock referiert online via Webex zum Thema "Assessment of P efficiency in forage legumes by utilising fertilisers from recycling products".
Die Vorlesung beginnt um 16:00 Uhr und ist kostenfrei.

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Legumes have a high demand for phosphorus (P) due to the energetically costly biological nitrogen fixation, but they also have effective physiological and morphological strategies for P mobilization. To evaluate the inter- and intraspecific P efficiency of small-grain legumes under contrasting long-term P management, eight accessions each of alfalfa (Medicago sativa L.) and red clover (Trifolium pratense L.) were cultivated in two consecutive growing periods from 2020 to 2021 in a field trial established in 1998. In 2021 and 2022, same accessions of both species were also cultivated in two pot experiments under greenhouse conditions to further evaluate their P efficiencies of utilizing different P recycling products. This study underscores the high potential of P mobilization of small-grain legumes without pronounced inter- or intraspecific differences. While struvite is suitable as a P fertilizer, the application of sewage sludge ash to legumes is not recommended.