FIELD: agrochemistry, more particularly introduction of fertilizers into soil. SUBSTANCE: sulfuric acid is added to meal of horns and hooves in 1: 10 ratio, after 6-7 days ammonium sulfate is added in 0.4-0.4:1 ratio, and 4 or 5 days prior to sowing time, potassium fertilizer is added in 0.5 to 1 ratio. EFFECT: more efficient preparation method and wider range of fertilizers. 1 tbl
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