Efficient organic leaf fertilizer containing sugar alcohol and urea

The invention discloses an efficient organic leaf fertilizer containing sugar alcohol and urea, which is applicable to the field of agriculture and forestry production. The efficient organic leaf fertilizer comprises the following components in parts by weight: 3-8 parts of sugar alcohol, 5-10 parts of amino acid potassium, 0.2-0.8 part of a surface finishing agent, 80-100 parts of urea, 80-100 parts of phosphoric acid, 0.1-1 part of allantoin, 0.5-1 part of kanamycin, and 0.5-1 part of polyoxyethylene 20 sorbitan monolaurate. The preparation method of the efficient organic leaf fertilizer comprises the following steps: preparing a urea phosphate solution from phosphoric acid and urea, adding the urea phosphate solution into other processed residual raw materials, sufficiently and uniformly mixing, cooling to a certain temperature after reaction, introducing a seed crystal to facilitate the fast crystallization, and drying to obtain the product.