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my lower leaves are turning yellow

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Old 02-11-2009, 01:08 AM
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Join Date: Feb 2009
Posts: 4
Default my lower leaves are turning yellow

I started my 11 plant garden last week....my ppm is 420....my lower leaves are turning yellow...I assume it is low in magnesium and my ppm should be higher (is it?). I am growing tomatoes (sorry). My ph went from 6.1 friday to 7.2 today also. I plan to add some epsom salt in the morning and increase my ppm. I love this site and thanks for sharing your knowledge with us..........indy

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Old 02-11-2009, 01:09 AM
Ron Ron is offline
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Join Date: Jan 2009
Posts: 1,285

Yes your ppm should be twice that and lower the pH every day (if you have to) to keep it in the correct range.

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