Question

Minerals ABBSENT in alluvial soil. (NOT DEFICIENT)

Answer 1

Chemical properties of Alluvial Soils
The proportion of nitrogen is generally low.
The proportion of Potash, phosphoric acid and alkalies are adequate
The proportion of Iron oxide and lime vary within a wide range.

All the other minerals except these are absent in them

Hope it helps

Answer 2

Nitrogen 
Phosphorus........