NOVELTY - A lawn composite fertilizer comprises 30-34 pts. wt. urea, 30-40 pts. wt. diammonium phosphate, 15-20 pts. wt. potassium chloride, 5-7 pts. wt. magnesium sulfate, 1-2 pts. wt. zinc sulfate, 8-12 pts. wt. potassium dihydrogen phosphate, 20-30 pts. wt. bone powder, 8-10 pts. wt. potassium sulfate, 100-115 pts. wt. dairy manure, 25-35 pts. wt. mushroom residue, 30-40 pts. wt. straw, 25-36 pts. wt. bran, 10-15 pts. wt. broomcorn powder, 3-5 pts. wt. epoxidized soybean oil, 1-2 pts. wt. borax, 4-7 pts. wt. effective microorganism, 8-10 pts. wt. soil improving agent and balance water.    USE - Lawn composite fertilizer.    ADVANTAGE - The fertilizer can provide lawn having enhanced ability of resisting high temperature and low temperature stress, prolongs lawn green period.    DETAILED DESCRIPTION - A lawn composite fertilizer comprises 30-34 pts. wt. urea, 30-40 pts. wt. diammonium phosphate, 15-20 pts. wt. potassium chloride, 5-7 pts. wt. magnesium sulfate, 1-2 pts. wt. zinc sulfate, 8-12 pts. wt. potassium dihydrogen phosphate, 20-30 pts. wt. bone powder, 8-10 pts. wt. potassium sulfate, 100-115 pts. wt. dairy manure, 25-35 pts. wt. mushroom residue, 30-40 pts. wt. straw, 25-36 pts. wt. bran, 10-15 pts. wt. broomcorn powder, 3-5 pts. wt. epoxidized soybean oil, 1-2 pts. wt. borax, 4-7 pts. wt. effective microorganism, 8-10 pts. wt. soil improving agent and balance water. The soil modifying agent comprises 10-20 pts. wt. sepiolite, 1-2 pts. wt. nano-carbon powder, 4-5 pts. wt. sodium metasilicate, 17-19 pts. wt. methyl methacrylate, 3-4 pts. wt. yeast selenium, 2-3 pts. wt. copper, 2-3 pts. wt. zinc, 1-2 pts. wt. magnesium chloride, 2-3 pts. wt. ammonium sulfate, 1-2 pts. wt. boric acid, 4-6 pts. wt. dipentaerythritol hexa-acrylate, 30-40 pts. wt. vinegar, 2-3 pts. wt. chitosan, 1-2 pts. wt. eucalyptus oil, and 0.5-1 pts. wt. compound sodium nitrophenolate. The soil modifying agent is prepared by mixing methyl methacrylate, dipentaerythritol hexa-acrylate and sepiolite, nano-carbon powder, and eucalyptus oil, stirring to form uniform mixture, and then mixing the other components, fully stirring to form vinegar solution, and high speed dispersing the mixture with the edible vinegar solution into slurry to obtain the product. An INDEPENDENT CLAIM is included for preparation of lawn composite fertilizer comprising:    (A) mixing diammonium phosphate, potassium chloride, magnesium sulfate, zinc sulfate, potassium dihydrogen phosphate, potassium sulfate, borax, and bone powder, adding water, mixing uniformly, adding soil modifying agent, continuing to stir uniformly to obtain slurry, and drying concentrate to prepare granule;    (B) mixing uniformly the other components other than urea and epoxy soybean oil, maintaining the water content at 40-50 %, stirring uniformly, sealing, fermenting at normal oxygen-free low temperature for 20-30 days, turning one time per 3-4 days, drying, and crushing to prepare granule; and    (C) mixing uniformly the urea and epoxy soybean oil with the granule prepared from steps (A) and (B), cooling at normal temperature and drying to obtain the product.