I wonder if any one can help me , I have detected in my ebb and flow system, some blossom end rot on a couple of my tomatoes , and I understand that calcium is deficient.
As I have a 200 litre reservoir, I purchased some calcium nitrate granules to mix into a base nutrient solution.
I have 1 kg pack of 19% calcium, 15% nitrogen .
Does any body know the dilution rate I should use to 1 litre, as my hydroponic supplier did not know.
To use a pre packaged Calcium/Magnesium liquid nutrient the dilution says up to 4ml per litre which x 200 litres = 800mls and that is why I went for the granule concentrate of calcium nitrate.
Any help would be greatly appreciated.