NOVELTY - Forming organic titanium-plant ammonium acetate salt organic fertilizer by salting-out technique involves: using ice water solution of alkali neutralizing titanium salt to form sediment of meta-titanic acid without chloride and sulfur ion that can dissolve in citric acid; using meta-titanic acid sediment as titanium source, citric acid as solvent and chelating agent, and using microwave heat melt chelating to synthesize titanium citrate without chloride and sulfur ion; and neutralizing and salting out saturated titanium citrate solution by alkali plant ammonium acetate salt.    USE - For preparing organic titanium-plant ammonium acetate salt organic fertilizer (claimed).    ADVANTAGE - The organic titanium-ammonium acetate fertilizer uses stable and soluble titanium citrate, is made through microwave heat melting and chelating as synergist of plant ammonium acetate and organic fertilizer and crop growth accelerator i.e. titanium citrate, and shows high absorptivity. The fertilizer provides alternative to chemical fertilizer, which has low absorption utilization rate of soil, and causes large fertilizer loss, and pollution of waste to environment. The titanium element is known to strongly promote plant to absorb nitrogen, phosphorus, potassium and other microelements. Thus use of titanium containing fertilizer not only supplements nutrition of plant, but also greatly promotes plant to absorb and utilize nutrient components. With organic titanium compound fertilizer absorbing rate of original plant is improved by 30%. The titanium element further acts as very effective non-hormone type plant growth regulator. Titanium element improves photosynthesis of plant, increases chlorophyll content of plant, activates several enzymes such as peroxidase, catalase, azotase, nitric acid reductase, and 2-6 phosphatases in plant. The water soluble titanium citrate along with plant vinegar ammonium acetate provide synergistic fertilizer agent and crop growth promoter. The method provides titanium citrate fertilizer free of chlorine and sulfur ions. The organic titanium-ammonium acetate fertilizer provides improved multifunctional organic liquid fertilizer, than the fertilizer obtained by current technology. The method involving microwave hot melting is excellent to achieve full chelation.    DETAILED DESCRIPTION - Method for preparing organic titanium-plant ammonium acetate salt organic fertilizer through salting-out technique, involves: using ice water solution of alkali neutralizing titanium salt to prepare sediment of meta-titanic acid without chloride and sulfur ion capable of being dissolved in citric acid; using meta-titanic acid without chloride and sulfur ion capable of being dissolved in citric acid to substitute chloride and sulfate of titanium to be used as raw material of titanium citrate without chloride and sulfur ion; using sediment of meta-titanic acid without chloride and sulfur ions as titanium source, using citric acid as acid solvent and chelating agent, and using microwave heat melt chelating technique to synthesize titanium citrate without chloride and sulfur ion; and neutralizing and salting out saturated titanium citrate solution by alkali plant ammonium acetate salt to prepare organic titanium-plant ammonium acetate salt organic fertilizer. The preparation of sediment of meta-titanic acid by ice water solution of alkali neutralizing titanium salt involves dissolving titanium chloride or titanium sulfate in ice water, neutralizing with 10-30% sodium hydroxide solution, controlling pH at 7-8, and precipitating and separating milky white gel shaped meta-titanic acid in cold water of less than or equal to 5 degrees C; washing sediment of meta-titanic acid with distilled water to remove chloride ion or sulfur ion; and removing one part of adsorbed water of sediment of meta-titanic acid with chloride ion or sulfur ion through centrifugal machine, and using for acid chelating. The microwave heat melt chelating technique involves preparing citric acid-meta-titanic acid suspension, where ratio of titanium to citric acid is 1:2.5-4, by dissolving citric acid monohydrate crystal in adsorbed water of sediment of meta-titanic acid, and stirring uniformly to generate milky citric acid meta-titanic acid suspension; synthesizing titanium citrate through microwave heat melt chelating technique by putting citric acid-meta-titanic acid suspension in special disc type polytetrafluoroethylene resin reaction vessel, performing radiation heat melt chelating through piece of cabinet type microwave equipment with working frequency of 915-2450 MHz and microwave power of 1-10 KW or piece of tunnel type microwave equipment, controlling microwave heat melt temperature at 100-120 degrees C, and stopping reacting till changing milky suspension into colorless transparent glue solution; and preparing saturated titanium citrate solution by thinning titanium citrate glue solution prepared by microwave heat melt chelating into saturated titanium citrate solution through distilled water when glue solution is located at hot melt state. The step of neutralizing and salting out saturated titanium citrate solution through alkali plant ammonium acetate salt involves preparing alkali compound plant ammonium acetate salt by regulating pH of plant vinegar (wood vinegar, bamboo vinegar or herb vinegar) to 8-9 through ammonium carbonate or ammonium hydroxide, clearing and filtering to remove tar and benzopyrene, where filtrate is alkali compound plant ammonium acetate salt; preparing titanium citrate-plant ammonium acetate salt by regulating pH of saturated titanium citrate to 1.5-2.5 through alkali compound plant ammonium acetate salt, forming titanium citrate and compound plant ammonium acetate salt into gel and separating out, aging for 24 hours at room temperature at less than or equal to 25 degrees C, removing adsorbed water at surface through 60 degrees C hot air, and forming semi-dry compound salt of titanium citrate-compound plant ammonium acetate salt; and preparing multifunctional organic titanium-plant ammonium acetate salt organic fertilizer by mixing semi-dry titanium citrate-plant ammonium acetate salt with anhydrous ammonia carbonate according to proportion, controlling final pH at 5.5-6, and drying in 55-65 degrees C oven to prepare into organic titanium-plant ammonium acetate salt organic fertilizer.