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Grow QuestionsPotassium (K) deficiency (Lucas formula GHE)

Potassium (K) deficiency (Lucas formula GHE)

SOBIESLAWstarted grow question 4 years ago

I am trying the lucas formula, on the ghe nutrients. But it looks like one of my plants are now going into a potassium deficiency. Should i start adding the grow nutrient, and skip the lucas formula? Or add more bloom And stick with it? Grow=5% potassium and Bloom=3% potassium.

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Feeding. Chemical composition

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Mr_Weeds_Autosanswered grow question 4 years ago

If you're using the Lucas formula you're going to want to add more Bloom.

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The8thChevronanswered grow question 4 years ago

Are you applying the formula correctly? The Lucas formula for bloom is 8 ml/gal of MICRO and 16 ml/gal of bloom. If you are, then it's very possible that your baby wants more nutes than she's getting. Your first step needs to be to recalibrate your pH Meter and make sure that you are truly around 6.0-6.3 in your res. I assume you're doing hydro? Pretty sure the formula is specific for hydro although I suppose it could work with soil...

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