More research needed to improve confidence in biofumigation
More reliable evidence is required to encourage farmers to consider using biofumigation as an alternative crop protection method, was the main outcome of an international conference held at Harper Adams University, recently.
More reliable evidence is required to encourage farmers to consider using biofumigation as an alternative crop protection method, was the main outcome of an international conference held at Harper Adams University, recently.
The 5th Symposium of Biofumigation, held on behalf of the Association of Applied Biologists (AAB), brought together experts from 17 different countries to discuss the future of the technique.
Biofumigation is a process that involves growing short-term cover crops such as oilseed radish and Indian mustard that are naturally high in compounds called glucosinolates.
When these compounds are crushed and incorporated into the soil, a reaction takes place that produces volatile toxic compounds that are known to have an effect on a range of pests and diseases.
Symposium coordinator and Senior Lecturer in Plant Pathology and Nematology at Harper Adams, Dr Matthew Back, said: “The symposium generated much discussion and highlighted that there are many unanswered questions within the topic of biofumigation.
“Presentations by leading experts within the field showed that at present, biofumigation is a highly variable process – some studies have been greatly successful at reducing crop pests, weeds and diseases, but others have been less successful.
“A greater understanding of this variability is pivotal in encouraging growers and farmers to use the technique instead of their existing crop chemistry.”
During discussions at the event, it was suggested that to do this, it is important to always record the compounds to assist the scientific community to benchmark their studies.
Further work also needs to be conducted to assess the impact of the volatile toxic compounds on soil ecosystems
Dr Back added: “Through research taking place here at Harper Adams, we are trying to develop practical advice for growers and agronomists for how to use biofumigation successfully.
“The symposium proved an excellent opportunity for us to share our work with an international audience, and contribute to addressing the issues raised during the symposium.”
For more information about biofumigation research at Harper Adams University, visit http://www.harper-adams.ac.uk/news/202329/biofumigation-research-to-be-shared-with-international-audience-video#.VDZZOmxwbcs
