The invention provides a compound bio-
fertilizer containing ardealite and application thereof. Compound bio-
fertilizer is obtained through following steps: adjusting pH value of the ardealite to 4-5 via
lime water,
drying and crushing to 200-400 sections;
drying animal
manure,
cutting crop straws into sections and then
drying; mixing and fermenting the ardelite, the animal
manure and the
crop straws; controlling cultivation temperature to be at 28-32 DEG C after medium sterilization, sequentially inoculating various beneficial microorganisms, respectively cultivating the same, mixing mixed
bacteria with prepared fermenting mixture by weight ratio of 1:300-1000 after completing cultivation, adding water to adjust
water content to 35-45%, stirring the water , stacking the mixture for 3-5 days for co-
fermentation, further adding water to adjust
water content to 20-30%, and then crushing to obtain the compound bio-
fertilizer. The compound bio-fertilizer is mainly applied to field crops and applied to improving
saline-
alkali soil, acid soil and coastal soil structures.