Thanks for that Ray, I use calcium nitrate and mag. sulphate in my fertilizing program so the answer has been under my nose for some time. Just goes to show you are never too old to learn. It puzzles me though as to why there is so much salt in chc. Is it perhaps used as a preservative to keep the pathogen count down ? And I have just had a thought, as I said I use CaNO3 and MgSO4 in my fertilizer program would this lower the salt content within my pots? It could explain why some of the salt intolerant plants in my collection like Coelogne Cristata and the Miltoniopsis have been doing so well since going on to the program.
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