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Proper Sulfur levels in substrate

Carnegie ENT

New member
I have been having problems with too much sulfur in my plants. I have been doing soil samples with Soil Savvy test kits. My sulfur is coming at 48 ppm in the test results. The test (not calibrated for cannabis) says optimal range 6-12 ppm. I have had some major problems with sulfur and sulfates. It's in everything. I'm switching and modifying my nutrients to delete all sulfates and regulate the sulfur so I don't get a deficiency. I'm a licensed producer in Oregon. I have a perpetual system and harvest once a week. I do samples on my substrate (sunshine#4) every week. I do the second week of flowering to see where I am at and what the nutrients are pacing for the rest of flowering. I need to get an accurate optimum ppm for sulfur in my substrate so I can keep things in balance. Your help would be appreciated.
 
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