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Young researchers in Geeste07.12.2016 | | 0 Comments
Equipped with a wooden ruler, Alexander Basenius leans over his trial crop – a batch of basil plants – at Klasmann-Deilmann’s greenhouse in Geeste. After an appraising glance at the ruler, he pulls out his pencil and enters the figure in his table. Together with his schoolmate Timo Vähning, the Year 8 pupil is keen to delve deeper into the world of EM (effective microorganisms, touted as a ‘miracle solution’). Products are commercially available that contain blends of lactic acid bacteria, yeast fungi and other microorganisms. It has been claimed that they create a favourable environment that improves the soil and enhances yields. “I’ve read a lot about it online and I thought, “It can’t be that great,” says Alexander, a keen amateur gardener.
Series of trials with EM
And so the two of them have started a series of trials at Klasmann-Deilmann involving basil and pepper plants: for comparative purposes, they have added to the substrate either the dose recommended by the EM manufacturer or double this amount. As a control, they are also monitoring growth of plants without added EM. Young plants did indeed show stronger growth where EM was used. Alexander and Timo now want to investigate the reasons for this, so that they have a satisfactory answer ready in time for the competition in early 2017.
Two other pupils, Sebastian Berentzen and Christoph Thale, are looking at aerosols. An aerosol is a mixture of minute particles in the earth’s atmosphere. These may be pollen or spores, desert dust or sea salt, or indeed man-made particles derived from combustion or other industrial processes. The two pupils from the Marianum school are focusing on air pollutants. They are exploring the influence of these forms of environmental pollution on plant growth.
For their trial series involving lettuce and cabbage plants, they are applying a liquid mix of chemicals to both the seeds and the plants that they grow into. “This is to realistically simulate the real-world situation when pollutants enter the atmosphere and are then taken up by plants,” says Christoph - aerosols being involved as they are in cloud formation, resulting in plants absorbing some of these pollutants via rainwater.
Increasing the plants’ resistance
The crops are sprayed with the liquid at different concentrations and intervals to investigate the impact when they are in constant contact with environmental pollutants. One thing is already clear to the young researchers: “The plants are not only harmed by direct contact. Where we sprayed plants as seedlings, the leaves don’t look good. This indicates that the plants are also taking in these substances through the roots.” The task now is to find out how the damaging effect can be avoided, or what scope there is for increasing the plants’ resistance.
Regina Wilkens, who teaches biology and chemistry at Gymnasium Marianum and is the coordinator in charge of promoting integration between technical/STEM subjects at the school, had a good reason for approaching Klasmann-Deilmann with the school’s Young Researchers club: “Several years ago, another group of pupils conducted research at Klasmann-Deilmann – specifically, into Terra preta or ‘Indian black earth’ soil. This proved to be a multi-award-winning project.” Wilkens is keen to repeat this success and is hoping for a similarly good outcome at the next ‘Jugend forscht’ event.
Bernd Nordzieke (Research & Development) – himself a former pupil at the same school in Meppen – is happy to set time aside to provide these youngsters with assistance and advice on their projects. “This kind of research is a good way of getting young people interested in scientific aspects of horticulture.” Especially when the number of students enrolling in horticultural courses is declining, the industry shares responsibility for stimulating enthusiasm,” says university-educated agricultural biologist Nordzieke. “And if a school gets in touch with us, we will obviously assist with a project of this nature.”
‘Jugend forscht’ (literally, ‘Youth researches’) is Europe’s largest science and technology competition aimed at young people. It was launched by the then editor-in-chief of Stern magazine, Henri Nannen, in 1965.
It’s you we write for
Our blog’s editorial staff prepare news and topics relating to our company’s various areas of activity. Here, we briefly introduce the members of the editorial team. Don’t hesitate to use the e-mail addresses given here for purposes of feedback and further information, to ask questions and suggest topics.
Dirk Röse | Head of Corporate Communications
Dirk Röse has been at Klasmann-Deilmann since 2004 and heads up the Corporate Communications division. His contributions to our blog are mainly about the company’s latest news and day-to-day activities.
Hermann Limbers | Head of Advisory Service & Quality Management
Hermann Limbers has been with Klasmann-Deilmann since 1983. As part of the Product Development team, his contribution has included his instrumental role in establishing our range of Lithuanian growing media and our organic substrates. His present-day focuses are on international customer guidance and quality management. He consistently enriches our blog with his unique expertise on many aspects of raw materials and products.
Kim Karotki | Corporate Communications
Kim Karotki has, since 2015, enjoyed a wide-ranging remit pertaining to Klasmann-Deilmann’s internal communications. Her background in journalism stands her in good stead when it comes to researching and delving into complex issues. For her blog entries, she generally takes contributions to internal communications and explores them further; she also focuses on human-resources development and careers.
Jan Köbbing | Sustainability Management
Dr Jan Köbbing has been pursuing various research projects at Klasmann-Deilmann since 2015, on topics including Sphagnum farming and the restoration of former peat extraction sites. As Sustainability Manager, he also coordinates our emissions reduction measures and the preparation of our climate footprints. His contributions to our blog relate mainly to corporate social responsibility.