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Why do some prepared hydroponic mixes have insufficient Magnesium in them?

April 26, 2017hydroponic insufficient Magnesium Mixes prepared

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Why do some prepared hydroponic mixes have insufficient Magnesium in them?

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Plants require a surprisingly large amount of Magnesium, as can be seen in the Starting Formulation Solution #1. Magnesium is right at the centre of the chlorophyll molecule. Chlorophyll occurs in all green leaves, and in a hydroponic garden there are a lot of green leaves. As for why some mixes have insufficient Magnesium … probably ignorance of the plant’s needs.