The invention discloses a preparation method of a
trichoderma bio-
organic fertilizer for antagonizing pineapple
heart rot, which comprises the following steps: preparing
crop straws and an
organic fertilizer, inoculating
trichoderma strains into a
liquid culture medium, carrying out liquid
submerged fermentation, inoculating hyphae and spores obtained by liquid
fermentation into a
solid culture medium, and carrying out
solid fermentation to obtain the
trichoderma bio-
organic fertilizer for antagonizing pineapple
heart rot.
Straw,
sugar refinery filter mud and an organic
fertilizer are used as matrixes, trichoderma
hypha and spores obtained through
solid fermentation are mixed with a common organic
fertilizer according to a certain proportion, the mixed material is subjected to forming treatment, the granular trichoderma bio-organic
fertilizer is prepared, and the organic fertilizer is
livestock and
poultry manure and
agricultural waste. The trichoderma bio-organic fertilizer prepared by the preparation method of the pineapple
heart rot resistant trichoderma bio-organic fertilizer not only has good
nutrient durability, but also has a very good inhibition effect on pineapple heart rot resistance of plants, so that the use amount of the organic fertilizer is greatly reduced, and the production cost is reduced. Meanwhile, the fertilizer also has a very good
disease-resistant effect on plants.