Plant material and orchid cultivation

Thousand years of orchid cultivation is inseparable from soil, generally used are mountain mud, orchid mud (humus soil), pond mud, peat soil and so on. Plant materials can be used locally, free of money, according to their own orchid conditions, select the appropriate soil, mixed in proportion, such as some weathered rock, brick grains, sawdust, pine bark, etc., to make three-in-one or four-in-one plant materials. However, the soil must go through exposure, stir-frying and other disinfection procedures to avoid bacterial contamination. It is absolutely good to raise orchids with soil, and it can especially raise weak and small orchid seedlings. Raise orchids with soil, it is better to use tile pots, because tile basins have good air permeability and are not easy to accumulate water.

With the development of orchids, more and more people grow orchids with immortal soil. Immortal soil is pollution-free, suitable for urban balconies and roofs to raise orchids, it is best to use authentic Emei Immortals in Sichuan. Before use, the fairy soil must be immersed in water to make it fully absorb enough water, and then pick it up and drain the remaining water before it can be used. If you can't use it all at once, it can be sealed and packed in plastic bags to prevent drying. He native orchid, easy to manage, no stagnant water, and contains a certain amount of fertility and trace elements. But there are also some disadvantages, such as once dried, the particles can never be watered, so they have to be soaked in a basin, which is impermeable at 01:30. As a result, the soil was not soaked and Langen was swollen. If repeated several times, it is easy to cause Langen to blacken and even rot. Therefore, some amateur orchids, in the easy dry season, can not be watered in time, it is not suitable to use immortal soil for cultivation, especially in places where the roof and balcony are too ventilated, it is recommended to use immortal soil to raise orchids, it is best to use Yixing purple sand basin, because it has better insulation. Some orchids, in the fairy soil mixed with part of the soil, the effect is also very good.

There are also many people who raise orchids with brick blanks and ceramsite. Brick particles are easy to draw materials, absorb water quickly, and have water retention, and contain some inorganic salts. The crushed plant materials must be sifted, discarded powder and divided into several grades. Soak in water before use, especially bricks fired with coastal mud, because they contain too much salt, it is necessary to exchange water several times and soak off some salt before use. The measures of watering and fertilization should be strengthened in the management. There are some, such as nutrient solution hydroponics, etc., ordinary orchid farmers can not meet the requirements of technical equipment, not suitable for use. However, any plant introduced in the book, if used properly, can grow orchids well.

The author has used weathered rock and humus (orchid mud) to raise orchids for many years. It is indeed good to cultivate orchids with orchid mud, especially the petal-shaped flowers of traditional spring orchids and cymbidium, which have strong plant growth, thick petals and high ornamental value, which can not be compared with other plant materials. The specific method of use is as follows: first, sift the collected humus soil and remove impurities. Expose the soil for 3 to 7 days, or stir-fry it in an iron pan, sterilize and disinfect it, and then make it into particles. Wind generation rock can be used with mining. Because the weathered rock is clean and hygienic, it does not contain germs, has good hydrophilicity, and does not need to be processed, so it is screened into large, medium, small and medium-sized third gear. Generally, for raising spring orchids, mix well with 2 parts of weathered rock and 1 part of orchid mud; for planting cymbidium, it is better to use 3 parts of weathered rock and 2 parts of orchid mud. When planting, first put the large weathered rock on the bottom of the basin, and then put in the orchid seedling; then fill the orchid basin with the mixed plant material, shake it, and gently press it with your hand on the basin surface; finally, sprinkle the middle grain on the basin surface, you can pour root water and plant some green cloud grass on the basin surface. For orchids cultivated in this way, there is no need to apply fertilizer in the pot for two or three years, as long as the foliar fertilizer is sprayed as needed. Weathered rock can also be used to cultivate orchids alone.

Finally, remind newcomers that orchids must be patient, do not "change their orders from time to time" and do not apply fertilizer indiscriminately, otherwise it will be counterproductive. (Wang Cheng, Zhejiang)