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Nutrient deficiency
anacletostarted grow question 4 years ago
What kind of deficiency these leaves are showing? Can this be lack of nitrogen? I am using a lower amount of BioBizz Grow these days (1ml/L), passing to BioBizz Bloom and Top Max as they are in the middle of the flowering stage. In case, should I integrate with more BioBizz Grow?
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Calatheaanswered grow question 4 years ago
Well I guess it's either a nitrogen deficiency or a magnesium deficiency.
The symptoms are almost the same (yellowing leaves, older growth first (nitrogen and magnesium are mobile -> can be transported to newer growth)
Since you are feeding with BioBizz grow and bloom only, I believe the girls need some extra Magnesium. 1-2ml/l of CalMag (any brand) should be fine.
This is only my recommendation:
You could increase the amount of BioBizz grow (which is nitrogen) by 1ml/l to eliminate the risk that it is a nitrogen deficiency and simultaneously feed the girls with CalMag.
If leaves turn dark green, reduce the amount of BioBizz grow.
AND you should always consider that:
- nutrients could be locked up in the medium (plant has no access to them)
- Ph is too high or too low -> reduced or no uptake of certain nutrients
Hope this helps
Happy growing
NobodysBudsanswered grow question 4 years ago
yellowing from bottom-up? that could be nitrogen.
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MadeInGermanyanswered grow question 4 years ago
Hi buddy :-) At bio Bizt I have the experience that you can feed as planned :-) Your plant will love a little more feed :-)
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