Orchid planting skills: how to rejuvenate weak orchid seedlings?

  Many friends like to raise orchids, but in the orchid seedling stage is easy to appear weak seedlings, many people give up. In fact, careful care, let orchid weak seedlings rejuvenation is not difficult. Below, Kobayashi shares the method of rejuvenating orchid weak seedlings:

  It is difficult to rejuvenate weak orchid seedlings. Practice has proved that in order to rejuvenate weak seedlings, all measures must conform to its growth law, patient maintenance with ordinary mentality, steady and slow, never too hasty. As long as the plant materials are selected and the management keeps up, the weak seedlings of orchids can be rejuvenated completely.

  (1)Select a mixture of breathable, drained, nutrient-rich plants: plant material to mix plant material is better. It is best to use mixed plant materials containing sifted orchid mud for planting weak seedlings, accounting for 1/3, thick at the bottom and fine at the top, especially around the pseudobulbs, which should be covered with fine particles with a diameter of 3~5 mm, which is conducive to the growth of new roots of weak seedlings. Deep roots and luxuriant leaves, only the roots are well nurtured, weak seedlings can be rejuvenated, otherwise, everything can not be discussed.

  (2)Orchid pot should be small, turn pot not too frequently: orchid weak seedlings, root system is not developed, in the pot should be small not big. It is difficult to dry out with large potted plants and weak seedlings, which easily leads to rotten roots and fallen seedlings. Weak seedlings grow slowly, should be static should not move, such as not see disease, can not turn over the pot, turn over the pot after the seedlings are difficult to grow.

  (3)Appropriate and healthy seedlings with pot cultivation: practice has proved that the more robust the orchid plant, the more its roots, the more beneficial to the growth of orchids. But the weak seedling root system around the orchid fungus mostly is not active, orchid plant grows slowly. Therefore, in order to rejuvenate weak seedlings, it is best to find a "nurse" for her, that is, it is planted in a potted plant with healthy orchid seedlings, so that it grows in an active environment of orchid bacteria, and promotes growth with "strong" and "weak", with good results.

  (4)Appropriate shade: weak seedlings should be shade not yang, scattering light is good, to be released when the leaves are slightly affected by morning oh, gradually exercise adaptation. Weak seedlings are suddenly exposed to strong direct sunlight and are vulnerable.

  (5)Appropriate clean raise: weak seedling seedling growth weak, need fertilizer not much, dormancy period is more so. "Empty without supplement", more fertilization will backfire. The general requirements for raising weak seedlings are partial dry literacy, plant materials should be dry but not dry, moist but not stained. Fat and wet, often difficult to root, or even do not root. Water can not be sprayed with water, generally not suitable for rain, otherwise easy to rot seedlings.

  (6)Create suitable air humidity conditions: raise weak seedlings, air humidity should not be too high or too low, air relative humidity of 40%~70% is good.

A Method of Rejuvenating Orchid| How to rejuvenate a sick orchid? This article mainly introduces the rejuvenation method of orchids and the technology of how to rejuvenate sick orchids. In the process of orchid cultivation, plant diseases and insect pests, excessive rationing, improper cultivation and plant aging often lead to slow growth of orchid seedlings, and present yellow leaves, rotten roots, rotten buds and other morbid conditions. If rescue measures are not taken in time, these weak orchids will lose their ornamental value and eventually die of exhaustion, especially for some rare species, after the fragrance is destroyed, it will be difficult to find a trace. Saving the sick orchids was indeed a problem worthy of attention for those who loved orchids. Some successful experiences are introduced as follows for the reference of the majority of Lan friends.

I. Strict disinfection

Remove the seedlings from the original pot, discard the original soil, and carefully clean the roots. Cut off residual roots, dead roots and rotten roots with burning and sterilizing scissors, then soak them in 0.5% thiophane methyl or potassium permanganate solution for 5-10 minutes, drain and dry in the shade, repeat this twice or three times to completely kill pathogens. Note that when soaking roots disinfection to just be able to immerse the pseudobulb for the degree, do not make the leaf center water. At the same time, the above liquid medicine can be diluted 5 times and then the leaves can be sprayed for disinfection.

II. Change the bowl

Cultivation and maintenance of weak orchids to earthen pots and purple sand pots for the first choice. It is best to replace the unused new pots, because the old pots must have some residual fungi and bacteria that cause orchid disease. If you want to use the old basin, it is safer to clean it and expose it to the sun for a few days or pour it with boiling water before using it. Use a basin mat to ventilate the basin floor. Can buy special hydrophobic cover, can also use peach kernel, walnut shell and other natural materials. The height of the basin should be 1/3-1/2 of the basin height, and the volume of the basin should be small rather than large. The root system of a weak orchid is relatively fragile. If the basin is too large, it is easy to cause ponding and cause the root to rot. Using small pots can avoid this problem.

III. Selection of substrate

The adaptability of weak orchid seedlings is poor, and the best cultivation substrate is granular substrate with medium fertility, less fat and good ventilation, such as ceramsite, foamed stone, coarse sand, broken brick particles, Emei fairy soil, gravel, etc. Can also be the root of the orchid plant and pseudo-bulbs wrapped in water moss and then planted to add the above-mentioned substrate pots, the effect is also good. All substrates must be disinfected before use. Humus soil should not be used to plant weak orchid seedlings. First, humus soil collected from the forest, more miscellaneous bacteria, difficult to thoroughly sterilize. Second, humus soil is easy to harden after using for a period of time, and its permeability is poor, which is unfavorable for orchid root growth.

IV. Temperature and humidity regulation

Plant weak orchids slightly deeper to protect false bulbs and keep them moist. The substrate in the basin should be kept in a moist state. Too much or too little water is not conducive to the rejuvenation of orchid seedlings. Hibernation period can increase matrix appropriately, usually cover false bulb, in order to keep false bulb wet, and play an anti-freezing role. When the temperature is higher than 15℃ in the spring of the following year, the substrate added in the winter of the previous year should be subtracted in time to facilitate the germination of new buds. Usually the temperature should be kept at 18-28℃.

Orchid seedlings should be placed in a place where scattered light can be seen, avoiding direct light. Can add a few birdbath, sink around orchid basin, in order to increase environmental humidity.

How to rejuvenate a sick orchid What to do when an orchid gets sick In the process of orchid cultivation, plant diseases and insect pests, excessive plant differentiation, improper cultivation and aging of the plant often lead to slow growth of the orchid seedlings, and present yellow leaves, rotten roots, rotten buds and other diseases. If rescue measures are not taken in time, these weak orchids will lose their ornamental value and eventually die of exhaustion, especially for some rare species, after the fragrance is sold, it will be difficult to find a trace. Saving the sick orchids was indeed a problem worthy of attention for those who loved orchids. Some successful experiences are introduced as follows for the reference of the majority of Lan friends. 1. Strictly disinfect the orchid seedlings from the original basin, discard the original soil, and carefully clean the roots. Cut off residual roots, dead roots and rotten roots with burning and sterilizing scissors, then soak them in 0.5% thiophane methyl or potassium permanganate solution for 5-10 minutes, drain and dry in the shade, repeat this twice or three times to completely kill pathogens. Note that when soaking roots disinfection to just be able to immerse the pseudobulb for the degree, do not make the leaf center water. At the same time, the above liquid medicine can be diluted 5 times and then the leaves can be sprayed for disinfection. Second, change the pot planting and maintenance of sick orchids to tile pots and purple sand pots as the first choice. It is best to replace the unused new pots, because the old pots must have some residual fungi and bacteria that cause orchid disease. If you want to use the old basin, it is safer to clean it and expose it to the sun for a few days or pour it with boiling water before using it. Use a basin mat to ventilate the basin floor. Can buy special hydrophobic cover, can also use peach kernel, walnut shell and other natural materials. The height of the basin should be 1/3-1/2 of the basin height, and the volume of the basin should be small rather than large. The root system of a weak orchid is relatively fragile. If the basin is too large, it is easy to cause ponding and cause the root to rot. Using small pots can avoid this problem. Third, the adaptability of weak orchid seedlings is poor. It is better to use granular substrates with medium fertility, less fat and good ventilation and permeability, such as ceramsite, foaming stone, coarse sand, broken bricks, Emei fairy soil, gravel, etc. Can also be the root of the orchid plant and pseudo-bulbs wrapped in water moss and then planted to add the above-mentioned substrate pots, the effect is also good. All substrates must be disinfected before use. Humus soil should not be used to plant weak orchid seedlings. First, humus soil collected from the forest, more miscellaneous bacteria, difficult to thoroughly sterilize. Second, humus soil is easy to harden after using for a period of time, and its permeability is poor, which is unfavorable for orchid root growth. Fourth, adjust the temperature and humidity to plant the weak orchid seedlings to be slightly deeper to protect the false bulbs and keep them moist. The substrate in the basin should be kept in a moist state. Too much or too little water is not conducive to the rejuvenation of orchid seedlings. Hibernation period can increase matrix appropriately, usually cover false bulb, in order to keep false bulb wet, and play an anti-freezing role. When the temperature is higher than 15℃ in the spring of the following year, the substrate added in the winter of the previous year should be subtracted in time to facilitate the germination of new buds. Usually the temperature should be kept at 18-28℃. Orchid seedlings should be placed in a place where scattered light can be seen, avoiding direct light. Can add a few birdbath, sink around orchid basin, in order to increase environmental humidity.