The importance of ventilation in orchid room

Domestic cultivation managers in the cultivation of national orchid sites, due to legal restrictions and in order to protect the growth of national orchid from the influence of natural climate, most of them are planted in closed greenhouse buildings to grow. However, the building height or span of this closed greenhouse is often insufficient, and the cultivation managers usually adopt the method of close planting in order to improve the utilization rate of cultivation volume, resulting in poor ventilation between orchid plants, and the air flow in the orchid room can not circulate and convect. the ability of fresh air to enter the pores of the medium for gas exchange is reduced.

Leaf evapotranspiration reduces its evapotranspiration due to the low convection rate of air circulation, which hinders its ability to regulate body temperature, and the accumulation of harmful substances in the air exceeds the critical point of rush plant growth.

Langen does not have enough oxygen for respiratory assimilation, Benin stores nutrients, stems and leaves do not have enough carbon dioxide for photosynthesis, fixed reaction to produce high-energy carbohydrates. As a result, the Lin plant caused the obstacles of photosynthesis, respiration, evapotranspiration, absorption, assimilation products and flow ability, the growth of the orchid plant was weakening day by day, the metabolic reaction of the plant was abnormal, and the original function of the orchid root was gradually lost. Rapid aging and death. In addition, the ventilation in the orchid room is poor, with the temperature rising, the decomposition rate of organic matter is accelerated, and the production of harmful substances increases, and the facultative bacteria are suitable for stopping the high temperature, humidity and poor ventilation environment, thus endangering the roots and orchid plants. the elongation of orchid roots and stems and leaves are affected by this environment, while their living functions are limited and their living functions are gradually lost, resulting in rotten roots or leaves suffering from disease.

In addition to the need for light, water and temperature in the process of growth, air is necessary for the survival of the national orchid. The natural air contains more than 70% of nitrogen and 16% of oxygen, and a small amount of carbon dioxide and other gases. If the national orchid growth does not have enough oxygen and carbon dioxide, the orchid plant will not be able to carry out respiration and photosynthesis, and the mass of newly proliferated organic matter will be reduced.

National orchid cultivation generally uses closed, orchid room ventilation equipment, if it is unable to make its circulation and convection in time and often ventilate at the right time, so that the air in the orchid room can be updated in time, the orchid plant is easy to get sick because of poor ventilation. Root growth will consume a lot of oxygen due to respiration, and accumulate a large amount of carbon dioxide and harmful gases to directly poison the root system, resulting in root growth obstacles.

In the usual cultivation and management, we often find that the root growth of the national orchid plant appears brown ring disease spot, the new root growth is stopped, very sharp and black, sometimes the whole root rot, especially close to the root at the base of the stem, the situation will be more serious. The reason for the occurrence of the situation is that the physical property of the medium is poor, the water fills the pores of the whole medium, the ventilation becomes worse, and the plant material is acidic, which leads to the deterioration of the root living environment, which is easy to restrict the root growth for a long time.

In general, the stronger the wind speed in the orchid chamber, the more the evaporation of the orchid plant and the surface of the medium, the faster the water loss. Therefore, cultivation managers should make more efforts when cultivating national orchids. Pay attention to and consider whether there is circulating convection in the air in the orchid room, whether the wind speed is appropriate, whether the position of the fan installed under the orchid shed is appropriate, whether the hot air is guided correctly, and whether the fresh cold air under the orchid shed is assisted by the fan. provide the orchid root in the orchid basin to obtain fresh oxygen to evaporate excess surface moisture, so that the orchid root can get sufficient fresh oxygen and gas exchange, and the carbon dioxide released by the orchid root and microbial respiration When the carbon dioxide is transported by the wind to supply the leaves for breathing, it helps the photosynthesis of the orchid leaves and promotes the ventilation between the orchid plants. And the hot air and harmful substances are discharged from the orchid by the upper fan.

In this way, the orchid plant grows in the best ventilation environment, the root life function is hyperactive, the stem and leaf growth is exuberant, and the damage rate of pathogens is reduced. Satisfactory results can be obtained no matter in quality or output.

The national orchid grows in the natural environment and is greatly influenced by the external environment all the time. National orchid cultivation belongs to the industry with high investment cost in all agricultural cultivation industries. If cultivation managers want to cultivate good quality, high output, rapid recovery of investment, and reduce the burden of investment costs, they should not only have a grasp of the current market dynamics of the national orchid, pay attention to the market orientation at any time, and analyze and understand it. Basically, we need to start with how to grow orchid plants, and if we want to grow ideal orchids, we must first cultivate orchids.

In order to grow the ideal national orchid, the cultivation management must have the knowledge of cultivating the national orchid, such as the national orchid.

Related information about physiological characteristics, environmental factors, fertilizer use, pesticide control, media types and characteristics among varieties. In addition, cultivation managers usually listen more, watch more, and consult others on how to cultivate an ideal national orchid, synthesize the knowledge they have absorbed and actual observation and other information, judge and analyze it, and cooperate with the cultivation managers to pay careful, loving, patient care and accumulated experience in actual cultivation, constantly review and observe, and gradually improve all factors related to the growth of national orchids. Do not just think that in the process of growing in the natural environment, as long as it supplies its light, medium, water, fertilizer and regular management mode of diseases and insect pests, the national orchid will grow very well and achieve its own ideal.

Predecessors once said: "there is no such thing as a free lunch" and "where there is a bit of hard work, there is a point of gain." This means that if cultivation managers want to produce satisfactory results, they must constantly look for all kinds of relevant information about the growth of orchids and the experience of others, constantly experiment and observe, gain and accumulate experience in failure, and adjust themselves all the time. Push yourself to improve. Review the reasons why others can but you can't, and what is the most important reason why others can. When the cultivation managers grow less and less orchid roots, the orchid plants become smaller and smaller, and the results are getting worse and worse, the cultivation managers must thoroughly review themselves and review whether their own management methods are correct in order to fully balance the supply of orchid plants.

The quality of the orchid plant is obtained by the cultivation managers with their usual painstaking efforts, and the cultivation management is under their own control. The experience and advice of others can only provide a management model with a major principle for cultivation managers. In order to raise the orchid plant well, it is still necessary for the cultivation managers to observe the growth status of the orchid plant from time to time, adjust and improve it according to the growth situation of the orchid plant, thoroughly review it and carry it out in person.

Review whether the previous management methods are correct, whether the selection of media meets the requirements of the growth of Langen, whether the control of environmental factors is appropriate, whether the application of fertilizer can fully supply the needs for growth, whether the management of diseases and insect pests is the right medicine, whether the way of drug application is correct, and so on. At ordinary times, cultivation managers should pay more attention and try their best to rule out the factors that affect and limit their growth. It is believed that a good national orchid plant will be planted.

(the author's note: at present, the four-in-one plants produced by Taiwan's Longfeng material Company and the mainland Sichuan Orchid World Company can adapt to the planting of the national orchid. )