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Wednesday, 19 August 2026 in
BC1 Business Channel One
The memory of the futureSharing innovation knowledge through authentic stories

Climate-friendly farming with eTrac and Silphie

🎬 Multilingual subtitles
✍️ By: Team BC1.NL

Collaboration for climate-friendly agriculture

Farmers work closely with nature and have a better understanding of the importance of preserving biodiversity than anyone else. This can lead to fruitful collaborations, such as those between Farmertronics and Silphie.nl. Silphie is an extraordinary plant that helps combat biodiversity loss and climate change. Farmertronics has developed an electric tractor, the eTrac, which emits no CO2 and operates autonomously. We attended a trial where the eTrac was used to sow Silphie seeds.

Silphie stores 6 to 8 tonnes of CO2 per hectare a year as humus

This plant, commonly known as the “the cup plant” has a fascinating potential. In a conversation with Peter Schreurs from Silphie.nl, we learned how he discovered the plant and its many uses. According to Peter, Silphie is particularly interesting for farmers, “The Silphie plant produces around 20 to 22 tons of dry matter per hectare per year. Additionally, it’s not an annual crop, it can thrive for 20 to 30 years.”
field full of silphie plants

During that time, a significant amount of CO2 is stored in the soil, around 6 to 8 tons of CO2 are converted into humus per hectare per year. Additionally, this plant can be used to produce biogas, yielding approximately 12 million liters of biogas per hectare annually. Alternatively, you can choose to use its fibers, which can be processed into products like bioplastics. For nature, the Silphie plant offers even more benefits, it’s a flowering crop that attracts and supports a wide variety of insects by providing a rich food source.

The electric tractor eTrac mows 8 hectares without a driver

eTracThe Silphie seeds are being sown as part of a trial using the eTrac, a robotic tractor that emits no CO2. Weighing only 1,200 kg, it is significantly lighter than a conventional diesel tractor, reducing soil compaction and benefiting soil health. The eTrac offers even more advantages: it can accommodate various attachments, enabling it to perform a wide range of tasks such as mowing and hoeing autonomously. “You just need to program the route, and when you return after the required number of hours, the eTrac will have completed the work for you,” explains Thieu Berkers of Farmertronics, the eTrac’s developer. For Peter Schreurs, another key benefit is that the eTrac makes precision seeding much easier to accomplish.

Collaboration beyond regional boundaries

eTrac seen from aboveFarmertronics from Deurne, North Brabant, and Silphie.nl from Breklenkamp, in the eastern part of Overijssel, in the Netherlands, demonstrate how collaboration can further enhance sustainability efforts. Their partnership shows that working together doesn’t require being from the same region.

Silphie flower with a beeAlso interesting:
Loss of biodiversity in the city
Nature-friendly farming better for biodiversity

Frequently asked questions

This is a short summary of the film. Watch the video above for the full story.

What is an autonomous electric tractor and why does it cause less soil compaction?
The eTrac is a fully electric tractor powered by a battery pack instead of a diesel engine, so it produces no CO2 emissions. It weighs around 1200 kg for less soil compaction and has no seat or steering wheel: the farmer plans the route in advance, places the machine on the field in the morning, presses start, and by the end of the day about 8 hectares have been mowed.
How much CO2 can a crop store in the soil?
Silphie produces 20 to 22 tonnes of dry matter per year per hectare and stores roughly 6 to 8 tonnes of CO2 per hectare per year in the soil, which is converted into humus. The crop stays in place for 20 years and also creates a flower-rich field with insects and greater biodiversity.
How do you make bioplastic from plant fibres?
Through a steam explosion process that uses only pressure and temperature without any chemistry, cellulose fibres are extracted with the lignins removed. Combined with a biocompound binder made from residues such as potato peels, this creates a granulate that can be injection moulded into biodegradable disposable cutlery, beams, window frames and trays used in the aviation industry.
Which crop can be an alternative to maize?
There is an alternative grown in this film: Silphie, also known as the cup plant. Unlike maize it is not an annual crop but stays in the ground for about twenty years. It flowers, so insects can feed on it, and it catches water with leaves that channel rain along the stem down to the roots, which lets it survive long dry spells. The yield is 20 to 22 tonnes of dry matter per hectare per year, and 6 to 8 tonnes of CO2 per hectare per year is locked into humus. Historically it was a fodder crop too, but from the 1970s onwards maize was the crop of choice.
Where can I watch the full film?
These questions and answers are a short summary. Watch the full film "Climate-friendly farming with eTrac and Silphie" with all insights, examples and background at https://www.bc1.eu/climate-friendly-farming-with-etrac-and-silphie/