What Fertilizer Does Orchid Use
As a traditional precious ornamental plant, orchids have unique nutrient requirements. Mastering the correct fertilization method is key to cultivating healthy orchid plants. This article will analyze fertilizer selection and application techniques from a professional perspective to help you grow orchids with lustrous leaves and fragrant flowers.
Orchid Fertilizer Selection Guide
Scientific Proportion of Special Fertilizers
Commercial orchid special fertilizers use an N-P-K plus trace elements formula, with the nitrogen-phosphorus-potassium ratio strictly controlled between 3:1:1 and 5:1:1, and additional calcium, magnesium, and sulfur as medium elements. It is recommended to use a combination of slow-release granular fertilizers and liquid fertilizers. Granular fertilizers can provide basic nutrients continuously, while liquid fertilizers can quickly replenish nutrients during the peak growing season.
Fermentation Process of Homemade Fertilizers
Orange peel enzyme production requires the selection of citrus peels without pesticide residues, mixed with rice washing water at a 1:3 ratio for fermentation. During the fermentation process, the lid should be opened daily to release gas, and adding EM bacteria can accelerate decomposition. The fermented liquid should be diluted 50 times before use, and the residue can be mixed into the planting material as a long-acting base fertilizer.
Scientific Orchid Fertilization Techniques
Dynamic Regulation During the Growing Period
From March to May, during the sprouting period of new buds, apply a balanced liquid fertilizer diluted 2000 times every 15 days. From June to August, switch to phosphorus-potassium fertilizers during the flower bud differentiation period, combined with foliar application of potassium dihydrogen phosphate solution. Fertilization should be done in the early morning, avoiding high-temperature periods, and the leaves should be rinsed with water after fertilization.
Management During Special Seasons
In summer, when temperatures exceed 32°C, stop using solid fertilizers and switch to a super-low concentration liquid fertilizer once a month. Before the winter dormancy period, apply bone meal once as an overwintering fertilizer to enhance the plant's cold resistance. No fertilization is allowed within 45 days after repotting; fertilization can only be resumed after new roots have grown.
Through the协同 management of scientific fertilization and precise application, effectively prevent orchids from encountering fertilization damage, nutrient deficiencies, and other growth issues. It is recommended to establish a fertilization record card, recording the time, type, and amount of each fertilization in detail, and adjust the plan dynamically based on the plant's growth status to cultivate high-quality orchids with ornamental value.