Tree Fruit Soils and Nutrition



The 17 essential elements are: 

C H O P K N S Ca Fe Mg B Mn Cu Zn Mo Cl Ni

Nickel (Ni)

Form used by plants:


Important functions:

  • Became an essential nutrient in 1989

  • Component of urease enzyme

Ideal foliage range for apple leaves:

No known natural deficiencies 

Ideal fruit concentration:

Ideal soil range:

Best indicators: 

Mobility in plant:

Deficiency symptoms:

**No known natural deficiencies

"Induced" deficiency symptoms include chlorosis of young leaves and death of the meristem.

Increased risk of Ni deficiencies on:

None known

Excess problems/Interactions with other elements:

No distinctive problems.



Updated July 13, 2004


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