Well it's in the title... They were growing great but in the last days or so the leaves started wilting. They always showed some yellowing and I thought about nitrogen deficiency so I fed them with slurry but without success... Any tips?
this post was submitted on 08 Jul 2024
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They haven't got spider mite have they? Take those leaves off, other than that it's hard to say what's wrong without seeing the state of the substrate. Like it could be too much water or not enough! Sorry but it's really hard to tell just from the leaves.
I haven't found any signs of spider mites (no webbing).
I've taken the affected leaves off and started feeding the plants with proper nutrients (COMPO Grow Organic for the time being, because its available and at least works great with my cannabis plants). Maybe my home made slurry is part of the problem.
I'd think that the cucumbers don't get too much water because I water them when the soil is dry about two knuckles deep which proved appropriate for Alle my plants.
I used "comfrey tea" as the K component for boosting tomato crops and it worked well, and it sounds pretty much like your jauche stuff. That was really just for the fruit though, for the vegetative growth I relied on the fertility of the initial mix. My cucumbers were irrigated every morning but grown in the ground - the soil was basically always damp though. I know we were talking a lot about drainage, and that's definitely important, but the water demand was very high in the heat so if it seems like your pots are draining well, it might be worth giving them a drench every morning. Pots are quite unforgiving!