NOVELTY - Method for producing fertilizer, involves selecting chicken manure and starch as substrates, overturning surface soil layer between fruit tree trunk and tree crown outer edge, uniformly placing soil outside the edge of lower part of tree crown to made ridge furrow, spreading straw to furrows, spreading hard and complete straw to the bottom layer, spreading microbial inoculums to the straws, covering soil, watering soil layer to straw surface, covering layer with plastic film, and punching several round holes on thin film.    USE - The method is useful for producing fertilizer (claimed) which is used for controlling plant diseases and insect pests.    ADVANTAGE - The produced fertilizer promotes growth of fruit tree, improves photosynthesis efficiency of fruit tree, quality and yield of fruit.    DETAILED DESCRIPTION - Method for producing fertilizer, involves (a) (i) selecting chicken manure as substrates from healthy livestock of green chicken farms in order to ensure to kill harmful microorganism and parasitic ovum in chicken manure, degrading drug residues, and fermenting chicken manure for more than 20 days by using microorganism leavening agent, and (ii) selecting straw as a substrate of non-decayed part of crops including wheat, rice, corn, potato, oil plants, cotton, sugar cane after fruit is harvested, (b) overturning surface soil layer between fruit tree trunk and tree crown outer edge in depth of 8-10 cm, uniformly placing soil outside the edge of lower part of the tree crown to made ridge furrow with the width of about 1.2 m, and punching holes in furrows, where the hole distance is 20 m, aperture is 2-3 m and depth of hole is 10 m, (c) spreading the straw to furrows, spreading hard and complete straw to the bottom layer, spreading the soft and scattered straws to the upper layer, where the spreading amount of straw is 4000 kg/mu, total thickness of straw is 40 cm, and 10-15 cm gap is reserved at two ends of furrow when the straws are paved in furrow in convenience for watering, (d) spreading microbial inoculums to the straws in weight ratio of 2%, purchasing microbial inoculum from the market, scattering microbial inoculum while spreading the chicken manure, where the concentration of chicken manure is 600 kg/mu, (e) uniformly covering soil which is turned during making the furrows, and striking the surface of the straw before covering so that chicken manure and microbial inoculum can be completely mixed, (f) watering soil layer to the straw surface, where the watering amount should reach degree that the soil covering the upper layer of the straw is wet, and straw completely absorbs water, (g) covering layer of plastic film on the straw surface soil layer in order to reduce water evaporation and accelerate fermenting speed for 3 days, and (h) punching several round holes on thin film, where round holes are passed through straw layer, hole distance is 20 cm and aperture is 2-3 cm.