re: calcium levels--is 3500 ppm too high or just right?
My calcium levels are at 2600 ppm right now (Mg at 300 ppm and
Ca saturation at 72%) and I'm thinking that I should raise Ca a bit,
maybe to 3500 ppm. Does anyone know what levels other really
big pumpkins have been grown in? And the followup question, of
course, is "How much gypsum do I add to a 1000 sq. ft. patch to
raise levels from 2600 ppm to 3500? I already added 40# of
magnesium sulfate and am hoping that will raise my Mg up around
400+ (but I haven't done the math) and that would give me a good
ratio of Ca:Mg, I figure.
Any advice would be appreciated!
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