Orchids fertilization methods
As a famous traditional flower in China, orchids are favored by gardening enthusiasts for their elegant attitude. If you want to grow high-quality orchids with oily leaves and straight flowers, scientific fertilization is the key link. Mastering the correct fertilization method can not only allow plants to grow healthily, but also improve the quality of flowering. The following will provide you with a detailed analysis of the secrets of orchid fertilization from four dimensions. Fertilization timing is selected. Basal fertilizer is needed during the pot change season (spring and autumn). At this time, adding slow-release fertilizers such as decomposed sheep manure or bone meal can provide nutrients that last for 3-6 months (G-Y). It is recommended to lay a base fertilizer layer with a thickness of 2 cm on the bottom of the basin and maintain a 3 cm isolation zone from the cultivation substrate to avoid root burning. During the growth cycle, topdressing and nutritional growth period (March to June), nitrogen, phosphorus and potassium balanced liquid fertilizer is applied every 15 days, and a high-phosphorus and potassium formula is used during the reproductive growth period (July to September). The best effect is applied before 10 o'clock in the morning, when the root absorption efficiency is 40% higher than that in the evening. Fertilizer ratio plan Organic and inorganic combination solid fertilizers recommend Aolu 318S slow-release fertilizer (NPK18 -6-12), and Huaduo No. 2 (NPK10 -30-20) can be used as liquid fertilizer. Organic fertilizer needs to be fermented by EM bacteria, and bean cake fertilizer needs to be diluted to a concentration of 1:50 and used no more than twice a month. Trace element supplementation and the use of iron chelate (EDTA-Fe) and borax solution during the growth period can prevent the scorched tip phenomenon of yellow leaves. It is recommended to spray 0.1% magnesium sulfate solution every quarter to enhance leaf photosynthesis efficiency. Scientific application techniques and precise application rules adopt the "three-look" principle: look at the leaf color (thick green reduces nitrogen), look at the new buds (stagnant fertilizer supplements), and look at the plant material (watering is needed for whitening). Thin fertilizer application is the key, the EC value is controlled at 0.8-1.2mS/cm, and fertilization should be stopped during low temperature periods in winter (<15℃). When fertilizer damage occurs under special circumstances, immediately irrigate the roots with clear water three times, cut off the charred roots and replace them with new soil. During the rejuvenation period of weak seedlings, HB-101 plant vital element 2000 times solution can be used for first aid, and the maintenance effect is better when combined with scattered light.
Master these fertilization tips and appropriate light and humidity management, your orchids will surely bloom elegant flowers every year. It is recommended to establish a fertilization log to record the time, type and plant response of each fertilization, and gradually form an exclusive fertilization plan through observation and adjustment over three growth cycles.