The invention discloses a
fertilizer for inhibiting potato soil-borne diseases and a preparation method thereof. The
fertilizer is prepared from the following raw materials in parts by weight: 45-65 parts of kitchen wastes, 20-30 parts of
biogas slurry, 32-44 parts of corncobs, 10-15 parts of mature rice vinegar, 15-25 parts of wheat
bran, 14-22 parts of pepper
meal, 12-18 parts of
citric acid residues, 10-15 parts of castor cakes, 8-14 parts of crab shell
powder, 5-10 parts of sasangua cake
powder, 16-24 parts of coco peats, 10-15 parts of quicklime, 4-6 parts of
maple leaves, 2.5-4.5 parts of garden
balsam flowers, 3-5 parts of curly dock roots, 2-4 parts of pharbitis seeds, 4.5-6.5 parts of stems of
anthelmintic ironweed, 3-6 parts of cucumber stems, 22-34 parts of
urea, 18-26 parts of
potassium dihydrogen
phosphate, 15-20 parts of
ammonium sulfate, 5-10 parts of
potassium chloride, 1-2 parts of
zinc sulfate and 20-30 parts of composite stone particles. The
fertilizer disclosed by the invention not only contains
nutrient elements necessary for the growth of potatoes but also contains an
active ingredient for killing or inhibiting soil-borne pathogens, so that the fertilizer can improve the
disease resistance of the potatoes, reduce the incidence rate of the potato soil-borne diseases, promote the healthy and rapid growth of the potatoes, and improve the yield and the quality of the potatoes.