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Discolaraion in leaves
Ashenw73started grow question 6 months ago
Hi all , this is my wedding cake auto. Which is 20 days old. Shes under 20 hours of ligh and in a 20 gal coco coir, perlite and vermicompost mix. My PH is off and its at 5. Im trying to recorrect it. please help me to figure why the discolaration and brown spots in leaves.
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LetsGrowSomeanswered grow question 6 months ago
5 would be too low for correct nutrient uptake. Should be aiming for 5.8 to 6.2. Plants take certain nutes better at different ph's. It can get complicated. Look up Mulders chart. It shows how too much of one nute effects others. Theres other charts that show ph nutrition absorbtion. Ph effects nute intake as much as how you feed it. At ph that low, it isn't taking up proper nutes even if you feed them correctly. Fix the ph and you should see some improvement.
Hope this helps, Happy Growing!