NOVELTY - Fertilizer comprises a basic fertilizer, a seedling fertilizer and a bud stage fertilizer. The basic fertilizer comprises fermentation products comprising 40 wt.% of cotton straw, 37 wt.% of animal manure, 1 wt.% of inoculating liquid, 3 wt.% of traditional Chinese medicine mixture, and 20 wt.% of humic acid. The seedling fertilizer comprises fermentation products having a moisture content of 10-15 wt.% and comprising 35 wt.% of cotton straw, 1 wt.% of inoculating liquid, 30 wt.% of animal manure, 15 wt.% of urea, and 5 wt.% of ammonium sulfate.    USE - The fertilizer is useful for cotton (claimed).    ADVANTAGE - The fertilizer increases the yield quality of cotton, and reduces the incidence rate of plant diseases by the attack of insect and pests.    DETAILED DESCRIPTION - Fertilizer comprises a basic fertilizer, a seedling fertilizer and a bud stage fertilizer. The basic fertilizer comprises fermentation products comprising 40 wt.% of cotton straw, 37 wt.% of animal manure, 1 wt.% of inoculating liquid, 3 wt.% of traditional Chinese medicine mixture, and 20 wt.% of humic acid, where the fermentation products have moisture content of 10-15 wt.%, and the traditional Chinese medicine mixture comprises 3 pts. wt. Pulsatilla root, 3 pts. wt. purslane, 3 pts. wt. radix rhapontici seu echinopsis, 5 pts. wt. Pyrethrum, 10 pts. wt. garlic, 10 pts. wt. rhizoma polygonati, 3 pts. wt. stramonium, 10 pts. wt. Ailanthus leaves and 2 pts. wt. Euphorbia. The seedling fertilizer comprises fermentation products having a moisture content of 10-15 wt.% and comprising 35 wt.% of cotton straw, 1 wt.% of inoculating liquid, 30 wt.% of animal manure, 15 wt.% of urea, and 5 wt.% of ammonium sulfate. The bud stage fertilizer comprises fermentation products having a moisture content of 10-15 wt.% and comprising 35 wt.% of cotton straw, 1 wt.% of inoculating liquid, 30 wt.% of animal manure, 3 wt.% of traditional Chinese medicine mixture, 20 wt.% of humic acid, 14 wt.% of urea, 4 wt.% of ammonium sulfate and 14 wt.% of potassium sulfate, where the Chinese medicine mixture comprises 3 pts. wt. Pyrethrum, 10 pts. wt. garlic, 3 pts. wt. Verbena, 3 pts. wt. climbing nightshade, 3 pts. wt. stramonium, 3 pts. wt. perilla, 3 pts. wt. Ailanthus, 3 pts. wt. tobacco, 3 pts. wt. lycoris radiata, and 3 pts. wt. Euphorbia. The inoculating liquid is prepared by adding an effective micro-organisms (EM) raw material into water in a mass ratio of 1:100. INDEPENDENT CLAIMS are included for:    (1) preparing the fertilizer comprising (a) preparing the basic fertilizer by weighing cotton straw and the traditional Chinese medicine mixture, crushing the mixture, taking the EM raw material, then adding water, uniformly stirring the mixture to obtain the inoculating liquid, adding animal excrement, humic acid and the crushed material into a fermentation tank, then uniformly mixing, adding the inoculating liquid into the fermentation tank, then fermenting for 7-10 days to obtain a fermentation material, then drying until the water content is 10-15 wt.%, crushing, granulating, and packing and storing in a storehouse, (b) preparing the seedling fertilizer by weighing cotton straw and the traditional Chinese medicine mixture, crushing the mixture, taking EM pathogenic bacteria, then adding water, uniformly stirring the mixture to obtain an inoculating liquid, adding the animal excrement and the crushed material into a fermenting tank, then uniformly mixing, adding the inoculating liquid into the fermentation tank, then fermenting for 7-10 days to obtain a fermentation material, then adding urea, ammonium sulfate and potassium sulfate, uniformly mixing the mixture, then drying until the water content is 10-15 wt.%, crushing, granulating, packing and storing in a storehouse, and (c) preparing a bud stage fertilizer by weighing cotton straw and the traditional Chinese medicine mixture, crushing the mixture, taking EM pathogenic bacteria, then adding water, uniformly stirring the mixture to obtain an inoculating liquid, adding animal excrement and the crushed material into a fermentation tank, then uniformly mixing, adding the inoculating liquid into the fermentation tank, then fermenting for 7-10 days to obtain a fermentation material, then adding urea, humic acid, ammonium sulfate and potassium sulfate, uniformly mixing the mixture, then drying until the water content is 10-15 wt.%, crushing, granulating, and packing and storing in a storehouse; and    (2) using the fertilizer, comprising (1) applying 100 kg/mu of the basic fertilizer before sowing, (2) applying 30 Kg/mu of the seedling fertilizer after sprouting, (3) applying 30 kg/mu of the bud stage fertilizer for 1 time in a month, (4) applying 30 kg/mu of bud stage fertilizer for three times in a month, and (5) applying 30 kg/mu of bud stage fertilizer for 5 times in a month.