The invention provides a stick fertilizer with synergy of reduced application of chemical fertilizers and increased application of organic fertilizers. The stick fertilizer is prepared from organic materials, inorganic materials and auxiliary additive materials, wherein the organic materials are prepared from a finished product obtained by decomposing after composting mushroom residue, a finished product obtained by decomposing after composting straws, a finished product obtained by decomposing after composting livestock manure, a finished product obtained by decomposing after mixing and composting biogas residue and mushroom residue, a finished product obtained by decomposing after mixing and composting sludge and mushroom residue and a finished product obtained after decomposing peat and oil cakes; the inorganic materials are prepared from slow-release compound fertilizers and/or slow-release elemental chemical fertilizers; the auxiliary additive materials are prepared from copper sulfate, zinc sulfate, ferrous sulfate, molybdenum sulfate, ammonium molybdate, manganese sulfate, calcium chloride, fulvic acid or humic acid. Through the stick fertilizer, the organic fertilizers and the inorganic fertilizers are collaboratively applied; the stick fertilizer has the advantages that the application quantity of the chemical fertilizer is reduced, the application efficiency of the chemical fertilizers is improved, and the application quantity of the organic fertilizers is increased; the stick fertilizer is prepared by mixed pressing or separately pressing; the preparation method is simple; the stick fertilizer is deeply applied by drilling holes; the application frequency is low; the labor and the effort of operation are reduced; after the stick fertilizer is applied to fruit trees, the fruit trees are high in yield and high in quality.