beeing very interested in plant biology i wonder if anyone here would know what is going on with plant nutrient supply if the leaves look like this:
There are very different strains at this spot all of which are showing this very same pattern of what i assume might be a (combined?) nutrient deficiency or blocked intake by abundance of another nutrient?
The owner had applied organic longtime-fertilzer about three months ago the package of which reads "up to 100 days of complete nutrient supply".
He sais the plants were perfectly healthy until about 8 days ago, when he thought he could boost them a little with a complete flowering phase fertilizer - but his local gardening shop guy thought it would be a good idea to apply a doseage of only mineral PK in about mid flowering stage.
Of the PK, only two thirds of the amount suggested in the manufacturer's instruction were used and applied only once. Now 8 days later most if not all leaves are sprinkled with these freckly spots. As in the picture, the spots concentrate towards the edge but spare the very edge. Could it be that the PK thus beeing carefully applied either blocks or would require another Nutrient to go alongside?
Thank you very much and kind regards, the Kaninchen.