Bad Girl Strain issues

hotrodharley

Well-Known Member
Phosphorus deficiency. Are you adding cal mag to your RO first and measuring EC before adding everything else? If not I suggest adding cal mag until you're at 125-150 PPM. Then add the rest of your nutes.
 
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Homegrownoob

Active Member
Phosphorus deficiency. Are you adding cal mag to your RO first and measuring EC before adding everything else? If not I suggest adding cal mag until you're at 125-150 PPM. Then add the rest of your nutes.
Honestly, I have never added it that way in any of my grows. Not that I wasn’t doing it wrong. Sounds like I might be shorting myself.
 

Homegrownoob

Active Member
Phosphorus deficiency. Are you adding cal mag to your RO first and measuring EC before adding everything else? If not I suggest adding cal mag until you're at 125-150 PPM. Then add the rest of your nutes.
I looked at my nutes and I have no phosphorus, but phosphate. Do I have to go buy something specific?
 

hotrodharley

Well-Known Member
I looked at my nutes and I have no phosphorus, but phosphate. Do I have to go buy something specific?
Before giving any extra P/K let's figure out if it's being blocked. How much cal mag are you giving? Which brand and how much nitrogen is in it?

There's Mulder's graph or chart. I call it Mulder's wheel. If you are feeding properly, or think you are, it's wise to take a look.

Nutrient-Antagonism-2-800x570.jpg
 

hotrodharley

Well-Known Member
We note that, alas poor Phosphorus, for everything might be against it. If there's a deficiency that's really obvious it's almost always going to involve nitrogen, potassium or phosphorus. All the rest of these guesses like zinc or moly or etc are just wild guesses.

Note magnesium is its only synergystic partner. So important we know cal mag. Since calcium can be an antagonist I usually advise spraying magnesium foliar. Cheap epsom salts. Avoid excess calcium.
 

Homegrownoob

Active Member
One of my last grows I seem to use a lot of Calmag as if the strain demanded it. This grow had such good genetics right away I stayed within the bottles recommended amount.
 
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