4 KG AL.FE AMMONIUM SULFATE is a nitrogen fertilizer used on a large scale for over a century. Its Nitrogen is completely ammoniacal and therefore its action is progressive and long-lasting also because it is not washed away by rain.
AMMONIUM SULFATE exerts an acidifying action on the soil and is recommended for fertilizing calcareous soils.
Of fundamental importance is the substantial presence of Sulfur (65% SO3) which allows to obtain quality vegetables with high quantities of vitamins contained.
It does not contain any residue: 100% of the components are useful for the nutrition of the plants and for improving the characteristics of the soil.