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How to plant Dendrobium nobile in Chishui
1, planting preparation

Dendrobium nobile has strict requirements on the growth environment. Generally, the annual average temperature is higher than Baidu, the lowest temperature in winter is above three degrees, and the frost period does not exceed fifteen days. Planting sites should be selected in semi-cloudy and semi-sunny areas, and the humidity is generally not lower than 80%. The best tree species for planting Dendrobium nobile is Castanopsis fissa, pear tree, camphor tree and other tree species with strong vitality. There should be stones in the planting area, and moss should grow on the stones. After land selection, the land should be arranged, and constructio n should be placed on the stone surface according to the row spacing of 40 cm and the plant spacing of 30 cm.

2. Breeding method

There are generally two propagation methods of Dendrobium nobile, namely tissue rapid propagation and ramet cutting propagation. Tissue rapid propagation needs about fifteen days of hardening seedlings. When the leaves of tissue culture seedlings are dark green, they can be planted out of the bottle. Cutting propagation by ramets is to select annual or biennial robust plants without plant diseases and insect pests as seed plants, then cut off too long roots, broken branches and dead branches that are not suitable for planting, and finally divide them into small clumps for planting.

3. Scientific planting

The best time to plant Dendrobium nobile is March and April in spring and August and September in autumn, especially in spring, with the best survival rate, yield and quality. There are two ways to plant Dendrobium nobile: sticking stones and sticking trees. When planting, we all need to fix the plants of Dendrobium nobile on stones or trunk. If it is planted by sticking trees, it is usually planted from top to bottom. The planting law of sticking stones needs to be planted according to the corresponding row spacing and plant spacing.

4. Tian Tuan management

There is not much difference between the field management of Dendrobium nobile and the management of Dendrobium planting. Maintain a certain humidity after planting, and at the same time prevent excessive water. Topdressing is usually carried out in the second year, mainly decomposed farmyard manure, which can be used as special fertilizer and nutrient solution for Dendrobium, and topdressing is twice a year. We should remove weeds around Dendrobium in time. Weeding is usually done in rainy days, so as not to hurt the roots of Dendrobium. When Dendrobium grows very vigorously, we should, um, trim and shape it properly to maintain reasonable permeability in the field. If it is a Dendrobium that has been growing for many years, some old roots should be cut off, which can promote the growth of new plants and improve the yield and quality of Dendrobium nobile.

5, pest control

Under the influence of poor management or climatic conditions, Dendrobium nobile will also have some serious pests and diseases. The most common diseases are soft rot, black spot and anthracnose. We can generally use carbendazim to control it, and then we can use Cobo and thiophanate-methyl to control it respectively. The main pests are snails, scale insects and red spiders. We can control snails with lime. However, Lepidoptera philippine clams often use dimethoate for control; The use of low-toxic acaricides, such as dicofol, has a very good control effect.