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New strategy in fossil free cultivation of fresh strawberries

To realise less sprouts, bigger fruits, and a higher harvest this year, a new strategy has been drawn up in a trial of the fossil-free cultivation of ever-bearers. Planting was done earlier on 3 March, so less heat was needed to forcefully build up a large leaf packet in a short time. The aim is to lower the plant load so that the assimilation demand is reduced. This should result in fewer but bigger strawberries. Stijn Jochems of Delphy gives an update on Kas als Energiebron.

In 2020 the first experiences with controlling an ever-bearer, with the variety Arabella, were already trialled. The principle is simple: build up an ever-bearer with increasing light and let it produce and grow throughout the year in balance with light and temperature. The result is flat production and a stable demand for labour, with a balanced input of fossil fuels (CO2 and gas). The cultivation concept is currently being further developed.

The new strategy works. However, there are still points for attention. For instance, dark weather in combination with mild temperatures proved difficult. For a good end result, it is important to learn how the assimilate balance can be secured in a Dutch summer, concludes Stijn. Read his full update here.


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