NOVELTY - Liquid fertilizer-based macro-elements of anaerobic fermentation broth, comprises (i) water-soluble nitrogen, phosphorus or potassium, (ii) water-soluble zinc, iron, boron, molybdenum or chelated-state trace-elements of inorganic salt, and a natural solution-containing magnesium and calcium microelements; (iii) water-soluble organic solid waste of organic solution, (iv) indoleacetic acid, gibberellin, amino acid, vitamin and growth active substances, and (iv) Bacillus and Lactobacillus.    USE - The liquid fertilizer macro-elements are useful for agricultural crops, flowers, lawn, garden, nursery stock, tobacco, fruit trees, vegetables and crops, and in large-scale cultivation of agricultural crops or planting plants (all claimed).    ADVANTAGE - The liquid fertilizer is environmental friendly (claimed), rich in nutrients, and economical; facilitates easy absorption of nutrients by plant; promotes plant growth; reduces water resource consumption, and cost of raw materials; achieves soil fertility; has long-lasting effect which increases the crop yield, and thus it improves the quality of agricultural products. The method removes anaerobic fermentation broth after completely maturity, and harmful bacteria and eggs, while maintaining the original active substance and beneficial bacteria.    DETAILED DESCRIPTION - Liquid fertilizer-based macro-elements of anaerobic fermentation broth, comprises either (i) water-soluble nitrogen, phosphorus or potassium, (ii) water-soluble zinc, iron, boron, molybdenum or chelated-state trace-elements of inorganic salt, and a natural solution-containing magnesium and calcium microelements; (iii) water-soluble organic solid waste of organic solution, (iv) indoleacetic acid, gibberellin, amino acid, vitamin and growth active substances, and (iv) Bacillus and Lactobacillus; or (a) water-soluble 200 g/l nitrogen, 88 g/l phosphorus, preferably phosphorus pentoxide or 300 200 g/l potassium, preferably potassium oxide, where the total amount accounts to 500 g/l, (b) water-soluble 2 g/l zinc, 2 g/l iron, 2 g/l boron, 1 g/l molybdenum or 7-30 g/l chelated-state trace-elements of inorganic salt, where the total amount accounts to 0-300 mg/l, (c) 20-50 g/l water-soluble organic solid waste of organic solution, (d) indoleacetic acid, gibberellin, amino acid, vitamin and growth active substances, (e) Bacillus and Lactobacillus, and (f) 0-50 g/l water-insoluble liquid fertilizer. An INDEPENDENT CLAIM is also included for preparing liquid fertilizer, comprising (i) carrying out solid-liquid separation of anaerobic fermentation residues, carrying out secondary fermentation, aerating, and precipitating, to obtain liquid fertilizer-based liquid; (ii) uniformly mixing liquid fertilizer-based liquid by adding quantitative amount of nitrogen element; (iii) removing a portion of the base liquid by adding trace elements, and dissolving disodium EDTA; (iv) preparing an organic suspension; (v) uniformly mixing phosphate fertilizer and potassium fertilizer, and uniformly stirring all the above obtained mixtures; and (vi) completely emulsifying, to obtain the product.