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Re: Ferts and plant ID
Rich wrote:
>My second question has to do with fertilizers. I recently
>obtained some Potassium Nitrate, Potassium Sulfate,
>Magensium Sulfate, Potassium Mono Phosphate and Plantex
>CSM+B trace mix. I mixed them all up seperately. I know
>how to dose them to achieve "optimal" levels. What I
>don't know is when/how to redose. I know the trace is a
>few times a week. What about the others? Thanks!
Assuming that your plan is to follow the "Tom Barr Way": Dose MgSO4 (are
you sure you need it?) and K2SO4 at the water change once a week. Dose
KNO3 and KH2PO4 with the traces 2-3x a week. I usually start on the modest
end of the suggested ranges and work my way up as the plants dictate. Be
sure CO2 levels are good -- test before the lights come on and again about
the time they go off. Ideally, CO2 should range approx. 20-30ppm through
the photoperiod. You'll probably see a nice pH swing of a few tenths once
things are cooking well. Good luck and have fun!
--
Chuck Huffine
Knoxville, Tennessee