TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The raw material comprises 18 wt.% vitamin D3, 78 wt.% oleanolic acid, and 4 wt.% caffeic acid. Preferred Method: The plant oleanolic acid is extracted using quantization solution of spiny stem Aralia root-bark and ethanol according to weight ratio of 90-110:1, and carrying out synchronous two time extraction at 65 degrees C. The preparation of quantization solution of spiny stem Aralia root-bark comprises (a) cleaning 270-330 kg red root, adding 160-200 kg water, placing at 90-100 degrees C, maintaining the pressure at 0.5-1 Mpa, processing for 15 minutes, then naturally cooling for 24 hours, (b) adding 5-7 kg glycolysis enzyme, placing in a pit, using non-toxic plastic film to seal, soil compacting at 20-30 cm above ground, and (c) fermenting at constant temperature, for 60 days in spring, 40 days in summer, 50 days in autumn, and 70 days in winter, and collecting the liquid. i.e. oleanolic acid quantization solution. The weight ratio of quantization solution of spiny stem Aralia root-bark and ethanol is 100:1. In the step (ii), the bamboo shoot shell constant-temperature decomposed liquid and slag is prepared by (a) taking 16-20 mg plant vitamin E, 280-320 g sorghum liquor of more than 60 degrees , sealing for 24 hours at 26 degrees C to obtain reaction liquid, (b) taking waste bamboo shoot shell, adding reaction solution according to each cubic meter of amount, adding 300 kg water, remixing, sealing for 25-27 days at 26 degrees C, and collecting liquid and residue. In the step (ii), the crushed plant straw prepared slag liquid and residue is prepared by (a) taking wheat straw, crushing to 2-4 cm sections, (b) digging ground, covering pit area by non-toxic plastic film, and (c) taking crushed slag according to each cubic meter of plant acid, adding 0.6-1 mg plant ferulic acid, 1-1.4 mg plant caffeic acid, and 100 kg water, mixing and placing in the pit, covering with the film, sealing and compacting soil, after 30 days, collecting the liquid and residue. In the step (v), the mixed fertilizer is prepared by (a) taking the bamboo land plant, according to each cubic meter, adding 0.6-1 mg plant ferulic acid, 1-1.4 mg plant caffeic acid and 100 kg water, preparing immiscible solution under oxygen-free condition, (b) taking 2-4 parts immiscible solution and 1 part plant oleanolic acid synthesized mixed liquid, and (c) taking the bamboo shoot shell constant-temperature decomposed residue and agricultural product residual crude crushed straw residue, adding 500 kg water in 8-12 kg mixed liquid, and mixing to obtain mixed fertilizer.