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post #6 of (permalink) Old 03-19-2015, 12:35 AM Thread Starter
AquaThumb83
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Why not when people use chemical fertilizers such as osmocote. Just curious, you would think organic would be safer.

This the osmocote ingredient list.


MATERIAL CAS # PEL TLV
Ammonium Nitrate 6484-52-2 None None
Ammonium Phosphates 7783-28-0/7722-76-1 None None
Calcium Phosphates 7758-23-8/7757-93-9/7758-87-4 None None
Calcium Fluoride 7789-75-5 2.5 mg(F)/m3 2.5 mg(F)/m3
Potassium Nitrate 7757-79-1 None None
Magnesium Sulfate 10034-99-8/7487-88-9 None None
Boric Acid 10043-35-3 None None
Copper Sulfate 7758-98-7 None 1.0mg(Cu)/m3
Ferrous Sulfate 7782-63-0 1mg(Fe)/m3 1mg(Fe)/m3
Iron EDTA 15708-41-5 None None
Manganese Sulfate 7785-87-7 5mg(Mn)/m3 5mg(Mn)/m3
Sodium Molybdate 7631-95-0 5mg(Mo)/m3 5mg(Mo)/m3
Zinc Sulfate 7733-02-0 None None
Zinc Oxide 1314-13-2 5mg/m3 10mg/m3

Last edited by Darkblade48; 03-19-2015 at 10:09 AM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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