FIELD: organic fertilizers. SUBSTANCE: invention relates to utilization of organic fertilizers, among them fish scraps, to obtain fertilizers. Preliminary milled piscine raw is mixed with organic filing agent. Beet molasses, for example, from sugar production waste is added additionally followed by composting prepared mixture by aerobic treatment method. Invention allows to prevent ammonia and other volatile amine exhaust and to increase content of biogenic nitrogen in ready fertilizer. EFFECT: improved method of preparing. 7 cl, 1 tbl
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