Bioactive properties of iron-nitrolignosulfonate complexes with a low content of ballast ions

The results of vegetation studies of the biological activity of iron-nitrolignosulfonate complexes with a low content of ballast ions are presented. It has been established that with root feeding of annual lupine growing on carbonate soil no appearances of chlorosis are observed and the plants reach the indicators of plants grown on normal soil. The iron-nitrolignosulfonate complex with a low content of ballast ions can be used in greenhouses including in the conditions of the Far North.