A brief talk on Yilan: plant material

The first decision of raising orchids is: ventilation and ventilation. Ventilation refers to the small environment of orchids to maintain regular air circulation, ventilation refers to the equipment for planting orchids, and plant materials should be conducive to air circulation. This is the conclusion drawn after hundreds of years of Yilan history and several famous Dalan families in history, and the practice of modern orchid cultivation has also proved that this is an immortal truth. Compared with the planting materials of ancient Yilan, the planting materials of modern Yilan are more rich and colorful. However, all kinds of changes remain the same, and modern plants pay more attention to air permeability. However, the hard plant of modern orchid cultivation has a fatal disadvantage, that is, the lack of necessary nutrients for orchid growth. Guolan has adapted to the terrestrial environment in the process of biological evolution, and the fleshy root tissue we see is very adapted to the slightly acidic soil environment. Modern industrial orchid cultivation basically uses hard plants as the culture substrate, due to the lack of nutrition, so people try to develop a variety of nutrients. But no matter how you play with it, you will not be able to create the same environment as nature. Orchid is a higher plant that evolves all the time to adapt to the new environment and avoid being eliminated by nature. Orchids are planted with hard plants for a long time, forcing orchids to evolve artificially in order to adapt to the new environment, so the internal tissue of orchids will more or less mutate to adapt to the new environment. This may be the reason why the resale grass is slightly different from the native grass in terms of fragrance, color and shape. Similarly, resale grass soil culture for 2-30 years, it may be able to evolve to the original state, of course, this is only a kind of reasoning, has not been scientifically verified. Practice has proved that using hard plants to raise orchids has both advantages and disadvantages. on the one hand, the seedling rate is high, rarely black spots and scorched tips. The disadvantageous side is that the false corm is often small, changing the plant material is easy to fall ill, and the biggest hidden danger is that it is easy to induce orchid "cancer"-Baylas disease. Now, some of the more advanced Lanyou are combining traditional and modern methods to improve traditional soil cultivation, so that the soil has the granulation of hard plants and maintains natural nutrients and trace elements. In addition, the new drugs for soil improvement developed by modern scientific methods make Lan Bao grow quickly and healthily. (Zheng Haiping)