John Polk wrote:Welcome to permies Lukas.
Perhaps something like planting a winter wheat after the fruit has been harvested.
It should be ready for harvest next summer, before the fruits are ready to pick.
I'm not sure if you can grow winter wheat in sweeden I think it might get too cold, on the other hand it is kinda in the ocean which helps and if the snow cover is usually good I don't know enoughf about the climate. Corn will not produce grain if it has any shade so I don't recomend trying that.
There is an orchard proven alternative to grains, that would be
butternut squash. Almost like a grain in its ability to last for 9 months or more in storage. I grow mine with some shade but my neighbor has a mature peach orchard spaced at about 18 feet apart and they seem to do even better over there (unless we get lots of rain then mine could compare to his). If you can start peppers early enough they willl thrive in partial shade sun chokes and japanese yams are also good for shade, oh and scarlet runner beans, climbers.
Grains are tricky too grow and in my case I have found that they are not worth it unless you have like 500 hectares. They just take up space that you could use to grow valuable crops.