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K2O replace K2SO4 ?
I found in a local garden shop selling 1kg package of K2O.
Can it be used instead of K2SO4 ? Can I follow the same "1/4 tsp one to
twice a week" dosage if K dosing has a larger window ? Without going into
detail chemical calculation I am guessing there will be more K
spoon-for-spoon comapre K2O to K2SO4. But how much ?
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