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Cal or mag def?
TCH0808started grow question 3 years ago
Believe this is a cal or mag def. Didn't begin supplementing until last week (2ml organic cal-mag per gal), but they're getting it w/ every watering now. Lightening between veins on higher sites, minor rust spots on lower sites. Think I can ride this out,but wanted to hear others
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Chow_13answered grow question 3 years ago
I would say its more of a PK def since everything I can see your using has a high N with lower PK.
worm castings are 2-0-0 ( some brands add P and K )
Stonington Blend Plant Food 5-2-4
Quoddy Blend Lobster Compost 0.6-0.3-0.2
Approx Ratio you want is(N : P : K)
Veg = 3 : 2 : 1
Flower = 1 : 2 : 3
Good luck and Happy Growing
m0useanswered grow question 3 years ago
Looks like a bit of a N excess and lacking some micros.
I might have top dressed in week 3 vs 4. Double check your fertilizers, check if they have any micros in them, dry amendments will take a week or two to become active if the PH is right. Not all ferts will list the complete breakdown but some googling may reveal the estimated content of some of the micros in compost/products you use.
Good Luck!
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