Orchid Fertilizing Techniques: Fermentation and Application Points of Cake Fertilizer Water

Can orchids be fertilized with cake fertilizer?During the orchid care process, the choice of fertilization method directly affects the growth state of the plant. As a traditional organic fertilizer, the effects and precautions of using cake fertilizer have become the focus of many orchid enthusiasts. Reasonable use of this type of natural fertilizer can not only avoid the pollution risks of chemical fertilizers but also provide balanced nutrients for orchids.Key points for the fermentation of cake fertilizerSelection and preprocessing of raw materialsThe residue of leguminous plants after oil extraction is most suitable for orchid cultivation, commonly found ones include rapeseed cake, peanut cake, sesame cake, etc. Before use, it needs to be crushed to the size of corn kernels; if too coarse, it will prolong the fermentation time, and if too fine, it may easily form lumps affecting breathability.Scientific fermentation processMix the crushed material with coconut bran in a 3:1 ratio and maintain a moisture content of 40%-50%. Use double-layer containers for sealed fermentation, placing vermiculite on the outside to absorb the leachate. It takes 45 days to complete the decomposition in spring and autumn, 30 days in summer, and more than 60 days in winter.Application methods for cake fertilizerSpecifications for the application of base fertilizerWhen repotting, mix 5%-8% of the decomposed cake fertilizer into the planting material, and keep it at a safe distance of 2cm from the orchid roots. For shallow pot cultivation, it is recommended to use the layered burial method, placing decomposed bone meal at the bottom layer, mixing the cake fertilizer in the middle layer, and using clean planting material on the top layer.Key points for the preparation of liquid fertilizerTake 1 kilogram of completely fermented cake fertilizer and mix it with 15 liters of water to make a mother solution. Dilute it again at a ratio of 1:50 before use, and adding EM bacteria can enhance the fertilizer effect. It is recommended to use alternately with potassium dihydrogen phosphate, not exceeding 2 applications per month.Seasonal management precautionsAt the end of spring and the beginning of summer, when new buds sprout, the effect of applying foliar fertilizer is significant. Around the autumnal equinox, when flower buds are differentiating, it is appropriate to increase the phosphorus and potassium ratio. Stop applying during winter when temperatures are below 15°C, and avoid applying during the noon hours in hot seasons.Proper use of cake fertilizer can make orchid leaves appear glossy and pseudobulbs plump and full. The key is to master the degree of decomposition, the concentration of application, and seasonal characteristics. It is recommended for beginners to start with a low concentration and adjust the plan based on observations of the plant's response.