Which soil type is having highest Phosphorus fixing capacity?

Red soils are formed mainly by alfisols soil order.
Red soils are having high Phosphorus fixing capacity because of the presence of Kaolinite clay mineral.
These soils are lightly textured with porous and friable structure and there is an absence of lime Kankar and free carbonates.
This soil is also known as the omnibus group. 
The presence of ferric oxides makes the colour of soil red.
They have neutral to acidic reaction and are deficient in nitrogen humus, phosphoric acid and lime. 
Crops suitable: wheat, cotton, pulses, tobacco, millets, orchards, potato and oilseeds.