ORGANPIÙ NP 3-3 IRON is a product obtained by blending organic matrices from animal origin, such as meat meal, bone meal, hydrolysed leather and hides, characterised by a high humic carbon content (rich in humic and fulvic acids). It provides organic nitrogen (N) with slow natural release, SO₃ and a high iron (Fe) content in an assimilable form. ORGANPIÙ NP 3-3 IRON is recommended for basal fertilisation on soils affected by iron chlorosis and for crops with high sulphur requirements, particularly in orchards and vineyards, with or without grass cover, in both autumn and spring treatments. Moreover, the special combination of sulphates, slowly mineralised organic nitrogen and iron complexed with humic matter makes this product ideal for high value crops.