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The 17 essential elements
are:
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Nickel (Ni)
Form used by plants:
Ni2+
Important functions:
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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