Agronomic performances of tomato and winter vegetables in the Danish trial

Summary

It is a bit of a compromise to start WLCs early enough for a good establishment and harvesting the last tomatoes. Our tomato crop was terminated 03 October and WLCs sown or planted 10 October.
Most crops were better sown in plugs and planted out as conditions in autumn were inappropriate for good germination and seedling establishment. A few crops like Mizuna, brown mustard and winter purslane can be sown if a good seedbed is prepared.
Under Danish conditions light is the limiting factor and plants are hardly growing from end-November until mid-February. The winter 2019/2020 was mild with only few hours of sun. Alternative: supplemental LED!
Promising alternative WLCs to Asian greens/winter purslane/lettuce are peas, spinach (if a large leaved cultivar is chosen), celtuce (if night interruption is introduced) + pointed cabbage.
The difference in tomato yields between INN2 and BAU decreased in the second year due to diseases for plants in the BAU system