How many divisions are the least required for orchid division
Orchid division is an important method of continuing the life of the plant, but improper operation can easily lead to plant death. Mastering scientific division techniques can not only continue the orchid population but also achieve the effect of explosive pot multiplication. This article provides a systematic solution for orchid enthusiasts from the critical value of division to the complete operation process.
1.1 Criteria for Determining the Division Critical Value
Before dividing, observe the fullness of pseudobulbs. When the number of pseudobulbs is ≥5, it meets the division conditions. At least 2-3 pseudobulbs should be retained per clump, ensuring that each clump retains more than 3 healthy aerial roots. The best operation period is 2 weeks before the spring germination period.
1.2 Formula for Calculating the Number of Divisions
Ideal division number = Total number of pseudobulbs ÷ 3 (round to integer), for example, 9 pseudobulbs can be divided into 3 clumps. The maximum number of divisions should not exceed 5 clumps, to avoid excessive root division that leads to absorption dysfunction.
II. Six-Step Precision Division Operation Method
2.1 Sterilization Pre-treatment of Tools
Use scissors or surgical knives sterilized with fire and soak the tools in a 500-fold solution of carbendazim. It is recommended to use purple sand or unglazed pots with a porosity of more than 30% of the pot wall area.
2.2 Water Control and Pot Removal Techniques
Stop watering 5 days before division, wait until the moisture content of the substrate drops to 30%, then tap the pot wall three times and invert to remove the pot. Keep the complete heart soil and maintain a water temperature of 25℃ when washing the roots.
2.3 Key Points of Division Anatomy
Divide along the natural gaps at the connection of pseudobulbs, ensuring that each clump retains 1 new bud. Apply charcoal powder to the cut surface and control the drying time of the roots for 2-4 hours, maintaining the environmental humidity at 60%.
2.4 Substrate Proportion Standard
Use a mixture of植金石: pine bark: perlite = 4:4:2, with a particle size of 8-12mm being optimal. When potting, lay a 3cm thick drainage layer and plant shallowly to 1/3 of the pseudobulb.
III. Key Post-Division Care Points
After division, place in a scattered light environment for 15 days, maintaining a daytime temperature of 18-25℃ and a nighttime temperature difference of no more than 5℃. Mist the first week for moisture, and start applying a 2000-fold solution of "Flower More 1" in the second week. After the new buds unfold, transfer to normal care.
By accurately controlling the number of divisions and standardizing the operation process, the survival rate of orchid divisions can reach over 90%. Mastering the techniques of pseudobulb division and key points of post-division care can lead to a healthy continuation of the orchid population.