Interpretation of leaf nutrient analysis: Alliums

Both crop yield and quality of allium crops can be affected by nutrient deficiencies, with onions and leeks potentially susceptible to deficiency in copper and manganese.

This factsheet aims to:

• Assist with the diagnosis of the most common vidual deficiency symptoms
• Provide guidance on sampling plants so that meaningful results are obtained
• Provide guidance on the interpretation of leaf tissue analysis results
• Provide information on the management of nutrient deficiencies.

This information was last updated in 2005.