NOVELTY - Unbracteolated spurge root biofertilizer is prepared by taking Stellera chamaejasme plant stems and leaves as raw material; grinding; extracting with 8-20 times amount organic solvent at 65-80 degrees C for 1-3 times for 2-5 hours each time; filtering; drying filter cake; adding auxiliary material; controlling moisture content at 50-60%; adjusting pH at 6.5-7.5 using quicklime or acetic acid; dissolving; spraying microbial inoculum into raw material stack; uniformly mixing; covering; fermenting at 60-65 degrees C for 7-12 days to produce white hypha; and adding composite inorganic fertilizer.    USE - Unbracteolated spurge root biofertilizer.    ADVANTAGE - The unbracteolated spurge root biofertilizer can improve soil aggregate structure and soil degradation generated sugars. It allows easy absorption of amino acids and other nutrients by plant. It improves nitrogen fixation, increases soil nutrients, and improves fertilizer efficiency. It produces several microbial metabolites, reduces and prevents occurrence of several fungi diseases. It has more comprehensive nutritional components.    DETAILED DESCRIPTION - Unbracteolated spurge root biofertilizer is prepared by taking Stellera chamaejasme plant stems and leaves as raw material; grinding; adding raw material with 8-20 times amount methanol, ethanol, propylene glycol, n-butyl alcohol, acetone, and/or isopropanol organic solvent; extracting at 65-80 degrees C for 1-3 times for 2-5 hours each time; filtering to obtain extract containing allelopathy coumarin and diterpene; drying filter cake; adding auxiliary material including rice bran cake, rice bran powder, bread flour, rice bran extract, licorice waste residue, or cypress cake powder into dried filter cake at weight ratio of (5:1)-(8:1); controlling moisture content at 50-60%, adjusting pH at 6.5-7.5 using quicklime or acetic acid; dissolving; spraying microbial inoculum into raw material stack; uniformly mixing; covering; fermenting at 60-65 degrees C for 7-12 days to produce white hypha; and adding composite inorganic fertilizer comprising 0.13-0.19 wt.% borax, 0.6-0.8 wt.% chelated iron, 0.13-0.17 wt.% manganese sulfate, 0.18-0.25 wt.% zinc sulfate, 0.18-0.22 wt.% copper sulfate, and 0.002-0.005 wt.% ammonium molybdate.