Cannabis Nutrient Disorders
When troubleshooting nutrient disorders in cannabis, often the symptoms and possible culprits can be confusing. Additionally, the margins for success and failure can often be very small, making even incremental changes in cultural practices detrimental. Thus, learning the art and science of diagnostics is important and valuable.
Deficiency Symptoms by Appearance
Nutrient deficiencies and toxicities can loosely be categorized into four main groupings:
Group 1: Distorted growth and necrosis (Ca and B)
Group 2: Overall yellowing (N and S)
Group 3: Interveinal chlorosis (yellowing of tissue between veins) (P and Fe)
Group 4: Marginal chlorosis and necrosis (death) (K, Mg, Mn, Zn, and Mo)
Group 1: Distorted growth and necrosis (Ca and B)
Group 2: Overall yellowing (N and S)
Group 3: Interveinal chlorosis (yellowing of tissue between veins) (P and Fe)
Group 4: Marginal chlorosis and necrosis (death) (K, Mg, Mn, Zn, and Mo)
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