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Nutrient Deficiency Table

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Use this chart to help you determine the possible causes for whatever strange problem you seem to be having. Don't forget that your problem may not necessarily be a lack of any particular nutrient, the issue is often availability. High pH can prevent plants from absorbing vital nutrients. Extreme humidity may cause leaves to remain tissue paper thin.

Take small steps in your attempts to balance your nutrient solution. It is better to under-feed your plants than to overdose them. Try adding about half of a recommended concentration as you experiment. You can always add more later.

This chart was html'd and posted to a.d.p.c. I lost the poster's name. Thanks!


DEFICIENCIES OF NUTRIENT ELEMENTS IN MARIJUANA
SymptomsSuspected Element
NPKMgFeCuZnBMoMnOver
Fertilization
Yellowing of: 
Younger leaves             
Middle leaves            
Older leaves              
Between veins             
Old leaves drop            
Leaf Curl Over            
Leaf Curl Under             
Leaf tips burn: 
Younger leaves            
Older leaves             
Young leaves wrinkle and curl             
Necrosis              
Leaf growth stunted            
Dark green/purplish leaves and stems            
Pale green leaf color             
Mottling            
Spindly            
Soft stems             
Hard/brittle stems            
Growing tips die             
Stunted root growth            
Wilting            

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