jym
Member
Hi, Could someone explain the reasons for dosing NPK and micros on different days please? :?
jym said:Hi, Could someone explain the reasons for dosing NPK and micros on different days please? :?
Probably using EDTA. Iron (Fe) is the most strongly chelated element, so it won't be "dislodged" by any other element. It only becomes available when the Fe EDTA is photo-degraded (which is why you need to keep FeEDTA in a dark glass bottle), so there are no free Fe ions to react and form insoluble iron phosphate compounds.Out of interest, can someone remind me how Tropica manage to include Fe and PO4 in one bottle (Tropica Plant Nutrition+) without precipitation/clouding?