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grumpy1

Please help identify N or Mg Deficiency

Hi,

 

I noticed my northern light in biobizz allmix week 4 seems pale but I can't say if it is Magnesium or Nitrogen.

 

I feed 70%-80% biobizz chart in ro water with 150ppm CalMg(4-0-0).

 

 

large.IMG_0746.jpg

 

 

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Magnesium deficiency would show up in the leaf petioles (purple) and low Mg can affect N uptake, but I don't think these are looking bad, perhaps a boost of Mg if you didn't give them any at three weeks bloom...I used to use epsom salts as standard in compost but your mix I'm not familiar with and never used RO water or Biobizz nutrients.

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They look hungry to me.

 

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This any good..................

post-25891-0-28635300-1315572656_thumb.jpg or this post-25891-0-49929900-1315385283_thumb.jpg or this post-25891-0-11672200-1315379486_thumb.jpg

 

I don't know which comes out clearest :oldtoker: Bom Shiva

Edited by Bhang Buddie
inserts
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Thank you ! I know the chart but it is hard for me to say exactly what it is because to me there is always 2-3 deficiencies that look alike. For example Mg or N....

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They are hungry nothing else, don,t overcomplicate it simply up the feed.

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tonight ill water again: one heaped tablespoon Epsom Salt per 5L, 1ml/l grow, 3ml/l bloom....sounds good?

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You need more than 1ml of grow and its the reason they are so light coloured, you don,t need Epsom salt as they are not mg deficient they are simply hungry up the grow only.

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