Hydroponic culture techniques of Chinese orchids

The traditional cultivation techniques of Chinese orchids are inseparable from natural soil and artificial plants. Watering and fertilization are inseparable from habitual cultivation. The growth of orchids depends on soil, water and fertilizer, which will seriously affect the growth and development of orchids if they are not properly controlled. In order to free the orchid planting technology from the traditional cultivation methods, to show people a newer, more beautiful and better appearance, and to bring people a more elegant and fragrant feeling. Through the practice and exploration in recent years, the nutrient solution Factory of soilless cultivation in Yanjiang District of Shaoguan City has solved the technical problem of the proportion of nutrient solution for orchid cultivation and developed a special nutrient solution for orchid hydroponics, which has been successful in orchid hydroponics. In this paper, some technical links of orchid hydroponics and the physiological and ecological changes of orchids after hydroponics are briefly described as follows:

1. Methods of hydroponic culture of orchids:

Hydroponic culture of orchids can be carried out all year round, especially before taking root and sprouting in early spring. Before hydroponic culture, select the mature grass with three or five seedlings, take out the roots, cut off the rotten shoots of the residual roots and diseased leaves, wash them, cool and dry for half a day, spray and dry one of the topiramate to disinfect the whole plant. When planting, carefully put the root into a special fixed sieve, fix the orchid seedlings with limestone and dolomite of 3X5 centimeters in diameter, and then put the fixed sieve of the orchid seedlings into a special basin with diluted nutrient solution. Change the nutrient solution every 1O~15 day, put half a bottle cap in each basin, and mix the water into the drain hole. After 15 ~ 30 days of culture, new roots can grow, bud and blossom normally.

Second, the advantages of hydroponic culture of orchids:

After several years of exploration, hydroponic culture of orchids has been proved to have the following advantages:

1. It can fully meet the requirements of moisture and nutrients for the growth and development of orchids, only need to change the nutrient solution on time without watering and fertilization, and effectively overcome the contradiction of too much water or excess or lack of fertilizers. It can also solve the disadvantages of poor growth or easy to cause diseases and insect pests caused by improper use of moisture, fertilizer and plant materials in traditional cultivation.

two。 No limited conditions, it is beneficial to the popularization of orchid cultivation. In the past, the cultivation of orchids required very strict requirements on pots, planting materials and technical measures, especially on planting materials, which was even more difficult for urban residents and the majority of orchid lovers. The hydroponic culture of orchids only needs nutrient solution, water and pots, which is simple in technology and easy to control, which is very helpful to popularize orchids to thousands of households.

3. It can effectively overcome the disadvantages of traditional cultivation. The traditional cultivation of orchids is very easy to appear black roots, rotten roots, yellow leaves and withered seedlings due to improper control of water, fertilizer and cultivation techniques, which deters people from growing orchids for the first time. Hydroponic orchids only need to change the nutrient solution regularly and quantitatively to meet the needs of their growth and development, and there will be no problems that are difficult to be controlled by traditional cultivation methods. (Liu Hanguang)