If you can't figure it out it's not worth explaining. Never mind.
stinkyattic Reviewed by stinkyattic on . Are Secondary Nutrients Important? Three different types of nutrients described: Primary, Secondary and Trace nutrients. Why are secondary nutrients (calcium and umm.. 2 other) NOT found on any of my fertlizers? They are NU-GRO 20-20-20 and MIRACLE GROW ULTRA BLOOM 15-30-15. They contain all the trace/micro-nutrients (eg. Bore, Zinc). Why is this and how important are the missing secondary nutrients? Rating: 5