Drop tests with my photometer don’t seem to be influenced by the EC.
By the way – my electrode of my pH meter seems to be exhausted. It measures in water with EC 60 microsiemens pH 5,9 while my photometer reads just 4,9 pH. And much lower I never had been, even with peat.
Another question: some time ago I told, that my new peat granules make EC higher when soaked in my osmosis water. Then came with Peter Finkes answer, that our German peat is no more plenty available, and therefore not the best quality when formed to granules, the thoughts to leave peat.
Now I have begun to soak elder cones in osmosis water to get a concentrate and had the same result: within one day pH about 4,5 and EC 250. …..
What’s about that? Are that just the concentrated humin and fulvin acids or harming substances???