*** Mag Def can I foliar safely with 1Tbsp of Epsom

Mag deficiency is creeping back tough.

It advisable to spray Mag sulfate at 1Tbsp per gallon?

Do I drench the plant or just underneath the leaves?

Thanks

1 Gram of Epsom salt in 1 gallon of water will provide 26 PPM of Magnesium and 34 PPM sulfur or 60 PPM total.

You could grab a scale and weigh a tablespoon, then multiply to see how many PPM the mix would be. (Elemental PPM)

I personally wouldn't go past 150 PPM total (Magnesium and Sulfur). 2 grams per gallon would be what personally consider to be a "strong" foliar feed at 120 PPM.

The stomata are on the underside of the leaves so thats ideal. One can use a surfactant to help the application provide a more thorough coverage. Some just use a little bit of dawn dish soap.

silvermt said:

Mag deficiency is creeping back tough.

It advisable to spray Mag sulfate at 1Tbsp per gallon?

Do I drench the plant or just underneath the leaves?

Thanks

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For a foliar feed I would stick to a tsp not tbs. You could burn the heck out of your leaves if it's too strong.

Can you add Epsom salt to other goodies in a foliar spray ?

I was thinking about mixing it to seaweed, Fulvic acid and Biowar.