News » 22.10.2026 - Swedish tomato grower records 13.2% yield increase in water-treatment trial
Commercial greenhouse trial in southern Sweden records 3,834 kg more tomatoes over six months, with no additional growing space or fertiliser reported. The commercial tomato grower in southern Sweden has recorded a 13.2% yield increase in a six-month trial of hydromagnetic water-treatment technology, raising questions about the potential for growers to improve productivity from existing greenhouse space.
Elleholms Tomatodling, based in Mörrum, Sweden, harvested 3,834kg more tomatoes from a treated greenhouse section than from an equal-sized control section between 27 April and 8 October 2026.
The trial compared two areas; each planted with 8,000 tomato plants of the Joannax Fendicia variety and grown under the same conditions. One section received irrigation water treated using the UK-designed Magnostream Pro system, supplied by Abimax Ltd, while the other received untreated hydroponic water.
Harvest records showed a total of 32,858kg from the treated section, compared with 29,024kg from the control, a difference of 3,834kg in favour of the treated crop.
Owner Thomas Lilja said the results had exceeded expectations. "We had hoped to get a 1% increase in yield, but the results from installing the UK-designed Abimax system have come as a real surprise to us." He added that the potential commercial benefit lay in producing more from the existing operation without increasing input costs, expanding greenhouse space or using additional fertiliser.
Commercial relevance for greenhouse growers
The trial began in April 2026 at one of Elleholms Tomatodling's greenhouse areas within its 60,000m² operation. Both the treatment & control sections were planted with 8,000 plants and cultivated under identical growing conditions, with separate closed irrigation loops designed to prevent cross-contamination.
The crop is hand-picked twice a week, providing regular harvest data throughout the trial period.
Abimax says the Magnostream Pro system used to treat 8000 plants produces continuous magnetic fields which restructure the water molecules and is designed for straightforward, easy installation. At Elleholms, the unit was fitted around an existing 70mm pipe using a modular linking system, without the need for specialist plumbing modifications.
For commercial growers under pressure to increase output, improve resource efficiency and maximise returns from existing infrastructure, the results provide an initial commercial-scale data point on hydromagnetic water treatment. Sweden's Agriculture University has applied for 2027 funding to run a peer-reviewed scientific study on different growing environments and crop cycles that will establish whether the yield difference can be replicated more widely and clarify the technology's potential commercial value.
Source: www.floraldaily.com
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