Is the effect of orchid applying compound fertilizer good?
In the process of orchid cultivation, scientific fertilization is a key factor in determining the health of the plant. As a commonly used fertilizer in modern horticulture, compound fertilizer's balanced nutrition characteristics have received considerable attention. This article will systematically analyze the practical effects of compound fertilizer in orchid maintenance and provide professional-level fertilization guidelines to help you cultivate orchids with glossy leaves and elegant blooms.
Analysis of the effect of applying compound fertilizer
Scientific and reasonable nutrient ratio
The golden ratio of orchid compound fertilizer (N-P-K) perfectly matches the growth requirements: nitrogen promotes leaf development, phosphorus enhances flowering quality, and potassium strengthens stress resistance. Compared to single fertilizers, compound fertilizers can simultaneously meet the nutrient needs of different orchid organs, especially for rejuvenating old seedlings and promoting new buds.
Precautions for application
It should be alternated with organic fertilizers, and it is recommended to use the "3:1 cycle method" — after applying compound fertilizer three times, an additional application of decomposed sheep manure is added. Special attention should be paid to avoid fertilizing during high-temperature periods, and the air humidity should be kept above 60%. Using ceramic stones as mulch can effectively prevent fertilizer damage.
Four-step precision fertilization method
Key points of timing control
① Sprouting stage (March-April): High-nitrogen compound fertilizer (30-10-10) diluted 1200 times, foliar spray once a week; ② Bud formation stage (July-August): High phosphorus-potassium type (10-30-20) combined with seaweed acid, root irrigation every 10 days; ③ Post-flowering recovery stage: Slow-release compound fertilizer granules are buried, continuously supplying fertilizer for 60 days; ④ Winter dormancy stage: Stop solid fertilizer, spray phosphorus acid hydrogen potassium (1:1500) monthly.
Operation technical specifications
Use the "three-ring irrigation method": with the pseudobulb as the center, the fertilizer solution is poured in concentric circles along the pot rim in three stages. Special note: The water temperature must be the same as the room temperature, and ventilation should be enhanced within 6 hours after fertilization, using an EC value pen to control the fertilizer solution concentration within the range of 0.8-1.2mS/cm.
Advanced care suggestions
It is recommended to establish a fertilization log, recording the fertilizer ratio, amount, and plant response for each application. Using acidified water with a pH of 5.5-6.0 can increase the absorption rate of compound fertilizers by over 30%. When the leaf tips turn brown, immediately water the plant three times with clean water for rescue.
By accurately mastering the techniques of applying orchid compound fertilizer and combining environmental control, the number of new seedlings per plant can increase by 40% annually, and the thickness of flower spikes can increase by 25%. It is recommended that orchid enthusiasts regularly test the EC value of the growing medium and adjust the fertilization plan dynamically based on the growth status to achieve the joy of a pot full of fragrant orchids.