NOVELTY - Special fertilizer comprises base fertilizer, middle-stage fertilizer and later-stage fertilizer. The base fertilizer comprises ginger straw, biological carbon, chicken manure, soybean meal and traditional Chinese medicinal mixture. The middle-stage fertilizer comprises urea, calcium superphosphate, potassium sulfate, and potassium nitrate. The later-stage fertilizer comprises urea, calcium superphosphate, and potassium sulfate.    USE - As special fertilizer for ginger (claimed).    ADVANTAGE - The special fertilizer substantially improves the output and quality of ginger, and reduces soil-borne disease incidence.    DETAILED DESCRIPTION - Special fertilizer comprises base fertilizer, middle-stage fertilizer and later-stage fertilizer. The base fertilizer is a fermentation product having 10-15 wt.% water content. The base fertilizer comprises 35 wt.% ginger straw, 10 wt.% biological carbon, 40 wt.% chicken manure, 10 wt.% soybean meal and 5 wt.% traditional Chinese medicinal mixture. The traditional Chinese medicinal mixture comprises 5 pts. wt. pine needles, 10 pts. wt. mulberry leaves, 5 pts. wt. efficient microbe (EM) bacterial liquid. The EM bacterial liquid is obtained by diluting 1 wt.% original EM bacteria with water in mass ratio of 1:90. The middle-stage fertilizer comprises 30 wt.% urea, 10 wt.% calcium superphosphate, 40 wt.% potassium sulfate, and 20 wt.% potassium nitrate. The later-stage fertilizer comprises 50 wt.% urea, 20 wt.% calcium superphosphate, and 30 wt.% potassium sulfate. An INDEPENDENT CLAIM is included for method for preparing the special fertilizer, which involves (a) (i) weighing base fertilizer raw materials, (ii) crushing ginger straw and traditional Chinese medicine mixture to obtain a material, (iii) preparing EM bacterial liquid, (iv) mixing uniformly chicken manure, soybean meal, and step (ii) material in a fermentation tank, spraying EM bacterial liquid to the fermentation tank, fermenting for 7-10 days, where during fermenting process the mixture is turned once in every two days, and (v) adding biological carbon, mixing uniformly, and drying until the water content is 10-15 wt.%, crushing, granulating, packing and storing in store house, (b) preparing middle-stage fertilizer by weighing the above-mentioned raw materials, mixing and sieving through 30 meshes sieve, spraying, pelleting, packing and storing in store house, and (c) preparing later-stage fertilizer by weighing the above-mentioned raw materials, mixing uniformly, sieving through 30 meshes sieve, spraying, pelleting, packing and storing in store house.