Symptoms
The complete leaf becomes pale olive green with a mottling or stippling between the veins. As the deficiency increases, the whole leaf yellows. This yellowing appears first at the tip of the branches, especially those in direct sunlight.
Reasons
Manganese deficiency
Deficiencies are worse on alkaline soils or those that have been over-limed.
Manganese deficiency made worse by
Organic soils
Sandy soils
High pH
Cold wet periods
Fluffy soils
Manganese is important for
Optimizes leaf quality to ensure good photosynthesis and supply of yield components
