NOVELTY - A compound selenium nucleic acid-coated modified bamboo fiber fertilizer comprises Phellodendron, sunflower seed powder, potassium aluminum sulfate, ammonia water, brown sugar, shrimp and crab shell powder, weathered coal, selenium-nucleic acid complex, urea, calcium-magnesia phosphate fertilizer, diammonium phosphate, potassium sulfate, amino acid fertilizer, calcium powder, effective microorganism, modified bamboo fiber, nano carbon, zinc sulfate, potassium polyacrylate, selenium chloride, boric acid, gamma -aminopropyltriethoxysilanesilane coupling agent KH550, and water.    USE - Compound selenium nucleic acid-coated modified bamboo fiber fertilizer used for strawberry (claimed).    ADVANTAGE - The fertilizer promotes strawberry growing, enhances photosynthetic effect, increases plant drought, is cold-resistant, has disease resistance ability, and increases quality of strawberry.    DETAILED DESCRIPTION - A compound selenium nucleic acid-coated modified bamboo fiber fertilizer comprises 54-56 pts. wt. Phellodendron, 24-28 pts. wt. sunflower seed powder, 3-4 pts. wt. potassium aluminum sulfate, 15-20 pts. wt. ammonia water, 43-45 pts. wt. brown sugar, 34-38 pts. wt. shrimp and crab shell powder, 20-23 pts. wt. weathered coal, 1-2 pts. wt. selenium-nucleic acid complex, 18-21 pts. wt. urea, 3-5 pts. wt. calcium-magnesia phosphate fertilizer, 18-23 pts. wt. diammonium phosphate, 12-14 pts. wt. potassium sulfate, 3-5 pts. wt. amino acid fertilizer, 9-12 pts. wt. calcium powder, 5-8 pts. wt. effective microorganism, 8-11 pts. wt. modified bamboo fiber, 2-3 pts. wt. nano carbon, 1-3 pts. wt. zinc sulfate, 0.2-0.5 pt. wt. potassium polyacrylate chloride, 1-2 pts. wt. selenium chloride, 0.3-0.6 pt. wt. boric acid, 0.1-0.4 pt. wt. gamma -aminopropyltriethoxysilanesilane coupling agent KH550, and balance water. The modified bamboo fiber comprises 5-7 pts. wt. nano diatomite, 2-4 pts. wt. nano kaolin, 1-3 pts. wt. nano zinc borate, 67-82 pts. wt. bamboo fiber, 15-19 pts. wt. amino resin, 0.1-0.2 pt. wt. potassium sulfate, 0.02-0.03 pt. wt. ceric ammonium nitrate, 12-14 pts. wt. castor oil, and balance water. The modified bamboo fiber is prepared by adding nano diatomite, nano kaolin, nano zinc borate and bamboo fiber to reaction container, adding water, stirring, adding amino resin, potassium sulfate and ceric ammonium nitrate, heat-stir reacting for 3-4 hours, drying at 60 degrees C in water bath, adding castor oil, and grinding. An INDEPENDENT CLAIM is included for preparation of the fertilizer comprising: (A) taking sunflower seed, Phellodendron, brown sugar, shrimp and crab powder, and effective microorganism microbial inoculum, mixing, maintaining water content to 44-46%, aerobic fermenting for 10-12 days, turning once every 14-18 hours, drying, crushing to 200-400 meshes, adding amino acid fertilizer, selenium-nucleic acid, potassium aluminum sulfate, urea, calcium powder, weathered coal, diammonium phosphate, potassium sulfate, and ammonia water, and stirring at 1000-1200 revolutions/minute; (B) crushing zinc sulfate, potassium polyacrylate, selenium chloride, boric acid, nano carbon, silane coupling agent KH550, and modified bamboo fiber and dispersing; and (C) pelletizing product in first step, spraying with calcium-magnesia phosphate fertilizer, adding product in second step, mixing, drying, and cooling to normal temperature.