Preliminary preparation for cultivation of Douban orchid

Soil selection of Douban orchid

Watercress has high requirements for soil selection, and semi soft plant material is better. For weak seedlings: the root system is still unstable. For the purpose of raising roots, it is best to choose lean plant materials. For example, granular raw laterite, thorn millet leaves, burnt soil and sapropel needles can be mixed in the ratio of 3:4:1:2.

For strong seedlings: the most important thing is to grow and blossom. Therefore, the proportion of thorn millet leaves can be appropriately increased to improve soil fertility. Granular laterite, thorn millet leaves, burned soil and sapropel needles can be mixed in the proportion of 2:61:1

Selection of flowerpot for Douban orchid

Choose a plastic basin with good air permeability, or a ceramic basin

Trimming of plant of Eupatorium odoratum

Select the vigorous and robust Douban orchid, wash the orchid root with purified water, then cut off the dry rotten root and black root with sterilized scissors, soak the orchid plant with diluted potassium permanganate for half an hour, take it out and dry it in the shade

Daily maintenance of cultivation of Douban orchid

Water supply of watercress

The water resistance of watercress is general, so it is not allowed to be watered too much and ponding in the process of maintenance. When the soil surface is dry, pour a small amount of water to wet the basin surface. Generally, the basin is moistened every other day in summer and watered thoroughly twice a month. In autumn, the basin is moistened twice a week and watered thoroughly once a month. Proper water control in winter can moisten the basin once a week.

Light management of Douban orchid

The growth of watercress needs a long light cycle, appropriate shading in summer and autumn, and no shading in winter and spring. Insufficient light may lead to difficult flowering of watercress, so we should pull out more watercress to bask in the sun

Temperature and humidity control of Douban orchid

The best growth temperature is 15-28 degrees centigrade. The temperature in spring and autumn does not need much attention in the two quarter. The temperature in summer is more than 35 degrees. The growth is slow. It can be cooled by shading and spray. The temperature in winter is less than 10 degrees, and it needs to be moved indoors to prevent frostbite. The suitable air humidity is 70-80%, and the suitable humidity in winter is 50-60%.

Fertilization measures of Douban orchid

The cultivation medium of watercress is rich in nutrition, so there is no need to apply chemical fertilizer in the cultivation process. Mixing an appropriate amount of cake fertilizer or sheep manure in the process of changing pots or soil once a year can provide sufficient nutrition for watercress, and generally no fertilizer is applied in the middle

Ventilation management of Douban orchid

In a well ventilated environment, watercress can promote the respiration of orchids, accelerate metabolism and promote growth; If the ventilation conditions are poor, it is easy to cause a large number of bacteria and molds to reproduce, which will bring rot and mildew, which is not conducive to the growth of orchids. The selection of ventilation sites should take full account of the wind force to avoid the damage of leaves caused by strong wind and cold wind.