How should fertilizer management for Chinese orchids be carried out starting from December?

During December, a season of weak light and low temperatures, attention should be paid to the damage caused to the plant body by cold spells. Increasing the application of potassium fertilizer can enhance resistance to adverse stress, enabling the plant's photosynthesis to reach balance under insufficient light conditions. During the "deep dormancy" season of the reproductive growth stage of Chinese orchids, fertilizer should be applied as a thin fertilizer, and foliar feeding should be given priority as much as possible. Fertilizer management in December should focus on allowing the (energy) carbohydrate substances produced by the Chinese orchid plant during its maximum photosynthesis period to assimilate and translocate to the pseudobulb, making the pseudobulb large and plump, and adjusting the plant's nutrient element content, avoiding excessive growth-inhibiting factors (phosphorus fertilizer content) affecting bud differentiation and affecting spring growth. 1. When the last stem leaf shows a "finger ring", the new leaf color changes to deep green, the epidermis becomes glossy, and the leaf sheath cracks and turns yellow. Every 15 to 20 days, use "Buyang" organic nutrient agent at 3000 times dilution, add "Huodijun BS" phosphate-solubilizing bacteria and 25:10:20 chemical fertilizer at 4000 times dilution. 2. When the leaf sheath has cracked and the new autumn buds have grown to 3 to 4 fen of wood, in order to make the new buds of the Chinese orchid grow robustly afterward, phosphorus fertilizer supplementation should be adjusted. At this time, use "Buyang" at 4000 times dilution, add "Huodijun BS" at 1000 times dilution, and 20:20:20 chemical fertilizer at 4000 times dilution. 3. When the flower buds elongate and emerge from the sphagnum moss by 2 to 3 cm, in order to give the flower stem sufficient nutrients to supply its complete development, every 15 days, use "Buyang" at 4000 times dilution, add "Huodijun" at 1000 times dilution, and 10:30:10 chemical fertilizer at 4000 times dilution. (Wang Huaigen)