Abstract: The invention relates to an organic water-soluble fertilizer, in solid form, with humic properties, comprising carbon and nitrogen with a carbon-to-nitrogen ratio of between 4 to 14, wherein more than 0% and up to 30% of the total nitrogen content is chemically bound as ammonium nitrogen, more than 0% and up to 20% of the total nitrogen content is chemically bound as easy-to-hydrolyse amide nitrogen and at least 50% of the total nitrogen content is chemically bound as difficult-to-hydrolyse amide nitrogen. The invention further relates to a method for producing an organic water-soluble fertilizer provided in solid form and the use of such a water-soluble fertilizer.

Abstract: The present invention relates to a method for producing an organic fertilizer with humic substance properties by oxidizing and ammonifying lignite, wherein the organic fertilizer has a nitrogen content of up to 8 wt. %, based on the dry weight of the fertilizer, and a C/N ratio of 7 to 15, which is characterized in that the method is carried out as a continuous method and comprises the following steps: a) dispersing the lignite and aqueous ammonia solution in a dispersing circuit having a dispersing device, a recirculation container, and a recirculation pump; b) oxidizing the suspension from step a) with an oxygen-containing oxidizing agent at a temperature of <100° C. in an oxidation reactor; c) drying the product suspension obtained in step b) at a temperature of >50° C.; and d) cooling the dried product obtained in step c).

Abstract: The present invention relates to a stable humus-water storage hybrid comprising an organic fertilizer consisting of lignite treated in an oxidizing and ammoniating manner and at least one water-storing component selected from materials of mineral or organic origin, the proportion of the organic fertilizer amounting to 0.5-99.9 vol. %, preferably 1.0-90.0 vol. %, and the proportion of the at least one water-storing component amounting to 0.1-99.5 vol. %, preferably 10.0-99.0 vol. %. The invention also relates to a method for producing the stable humus-water storage hybrid and to the use thereof as a plant substrate, an additive for planting soil and an additive for soil.

Abstract: The present invention relates to a method for producing an organic fertilizer with humic substance properties by oxidizing and ammonifying lignite, wherein the organic fertilizer has a nitrogen content of up to 8 wt. %, based on the dry weight of the fertilizer, and a C/N ratio of 7 to 15, which is characterized in that the method is carried out as a continuous method and comprises the following steps: a) dispersing the lignite and aqueous ammonia solution in a dispersing circuit having a dispersing device, a recirculation container, and a recirculation pump; b) oxidizing the suspension from step a) with an oxygen-containing oxidizing agent at a temperature of <100° C. in an oxidation reactor; c) drying the product suspension obtained in step b) at a temperature of >50° C.; and d) cooling the dried product obtained in step c).