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Harriet MellaMemberJuly 8, 2022 at 3:36 am010801
I totally agree: slugs are indicators of osmotic instability of the plant. So if we take the loop to soil structure before we are getting into mineral details, potassium should enter the plant though rhizophagy. That means the main insurance against slugs with the laziest approach is a good tap-root together with an aggregated soil and good paramagnetism to have a decent rhizophagy rate.
What makes discussion complicated is what the plant has available to use as compatible solute when faced osmotic problems: nitrogen (polyamines – stink, attract slugs; proline seems to be OK), carbs – fructose OK, polyols OK?.