Keep pH above 5.8.
What’s happened to these plants?
• Tagetes plants are in a very depressed state due to low pH, toxic effects of iron and manganese. A bronze tint is visible on some leaves.
How to avoid this?
• Keep pH in the proper range 5.8―6.2 . • Proper Ca/Mg application will help to avoid Fe/Mn .
pH above 5.8.
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