Potted plant soil special modifier prepared from pickling phosphorization leftovers

The invention relates to a potted plant soil special modifier prepared from pickling phosphorization leftovers, and belongs to the technical field of production of biological fermentation agents. According to the main technical scheme, the modifier is prepared from the following components: 1-10 parts of the pickling phosphorization leftovers, 5-10 parts of bentonite, 5-10 parts by weight of vinegar residues, 1-3 parts of a fermentation strain I, 2-3 parts of a fermentation strain II and 1 part of cellulase, wherein the fermentation strain I consists of bacillus subtilis, lactobacillus and denitrifying bacteria according to a mass ratio of 1:2:1, and the fermentation strain II is saccharomyces cerevisiae. The potted plant soil special modifier disclosed by the invention is used for modifying potting soil, is fragrant in smell and smooth in texture, and is convenient to apply; after granulation, the modifier can by applied by machines, and "dirty", "sticky", and "smelly" defects of organic fertilizer are thoro