Each granule contains phosphorus compounds very well soluble in water
(analogously to superphosphate) and calcium phosphates which are less soluble.
Range of use is very wide because it includes current supply of mineral elements
to cultivated plants, improvement of soil composition, i.e. preparation of the station
for the next plant, fertilization of perennial fields and high effectiveness on slightly
acidic or acidic soils, also the degraded ones.