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Sulfur in Hydroponics · Hydroponics Daily

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  Welcome back to the Hydroponic Daily with myself, Dr. Russell Sharp,
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  the inventor of gold leaf fertilizer.
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  Today we're going to talk about sulfur as a nutrient, spelt with an F if you're
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  American or a PH in the UK, and I'll give you that one, Americans,
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  because I think that is a better spelling.
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  I won't give you aluminium, but I'll give you sulfur.
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  Sulfur is very important for protein synthesis, and there are certain amino
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  acids that contain sulfur.
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  Not all of them, like they all contain nitrogen but certain
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  ones contain sulfur and so for certain enzymes
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  you're going to need a sulfur in the protein it's
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  required for energy conversion in photosynthesis so you
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  might be absorbing you might have plenty of chlorophyll but
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  you won't be absorbing it correctly if you haven't got enough sulfur and chloroplast
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  well it's easy for me to say chloroplast function
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  so chloroplasts are the tiny little organelles in
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  the cell that house the chlorophyll and all
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  the mechanisms required to for
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  the plant to photosynthesize and they can't function without
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  enough sulfur and so the symptom of deficiency
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  when you combine all those three things together is light
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  green leaves you don't see yellowing you don't see browning or
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  purpling you just they go light green like
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  a dull green light green and so that's a symptom of sulfur deficiency where
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  you will see sulfur deficiency it's this is quite a common one in hydroponics
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  and you'll see it where people are using granular fertilizers that don't contain
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  sulfur so if it's a liquid feed they often don't contain calcium.
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  Granulars because of the way they're formulated they
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  often don't contain sulfur and they require you
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  to add the sulfur in and they assume that you're going to add the sulfur back in.
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  Now will from gold leaf in
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  the us we've been out to lettuce hydroponic lettuce
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  farmers where they've just assumed the sulfur is coming
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  in in the water and unless there's a volcano nearby
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  there's not going to be a lot of sulfur in the water i don't
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  think there are many volcanoes in ohio but i might be
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  wrong on that one and so they we solved
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  their problems overnight by just saying right you need to add well first
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  of all you need to get on gold leaf but failing that
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  some add some sulfur back in and they were adding a bit
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  of sulfur with sulfuric acid for their ph down but it
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  wasn't a great deal so their whole lettuce crop
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  you know you don't want a light green dull lettuce crop do
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  you want a vibrant green lettuce crop
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  and so sulfur very important and some
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  people burn sulfur elemental sulfur in
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  their grow rooms to cure pest and disease however
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  that it should not be done if there's crop in
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  your grow room because it basically rains down
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  sulfuric acid and you can't
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  use powdered sulfur on the on the on the soil because
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  it's very very slow releasing and it'll reduce the
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  ph too much it basically forms sulfuric acid and so
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  don't use powdered sulfur use a good
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  base nutrient failing that use a a soluble sulfur form you know so sulfur very
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  important very often a deficiency a secondary macronutrients are needed in significant.
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  Amounts and yeah any comments or questions leave them below thank you very much.