Planting method of Dendrobium huoshan

Matrix: the matrix is granite gneiss. Watering: watering twice after planting, and then watering according to the dry humidity of the plant material in the later stage. Fertilizer: organic fertilizer and inorganic fertilizer can be applied. Temperature: the suitable growth temperature is 20 ℃-28 ℃, and the humidity is about 70%. Shading: two layers of 90% shading net are needed in summer and autumn. Anti-freezing: anti-freezing measures should be taken in winter. Prevention and control of diseases and insect pests: carbendazim and granule Meita (tetraacetaldehyde) can be used to control.

I. Matrix

The cultivation medium is granite gneiss, the thickness of stone layer is greater than 20cm, the rock is slightly acidic, the PH value is between 5.06.5.The planting density of tissue culture seedlings should not be more than 1000 plants per square meter, and the planting density of ramets should not be more than 500plants per square meter.

Second, watering

1. After planting Dendrobium in Huoshan, the first watering must be thoroughly watered, and then again on the second day, so that the bark can be watered thoroughly. If the surface of the plant is dry, you can spray the basin noodles with a sprayer, or it is more convenient to install sprinkler irrigation. Wait until the surface of the plant is dry.

2. When the weather is hot and dry, you can often spray water to the leaves and the ground, which is helpful to enhance the air humidity. if you have too much water and draw water, it will easily lead to rotting roots. if you encounter dry weather, you need to irrigate in time.

III. Fertilizer

1. Organic fertilizer and inorganic fertilizer can be applied during the culture period, mainly with organic fertilizer as the main base fertilizer, and page fertilizer should be sprayed during the growing period, organic fertilizer mainly includes sheep manure, cake fertilizer, etc., and inorganic fertilizer has controlled release fertilizer and aqueous solution fertilizer (including nitrogen, phosphorus and potassium, etc.).

2. The water-soluble fertilizer was applied before and after the Qingming Festival for the first time, and then sprayed every 10 days or so until August; the controlled-release fertilizer was applied in early April and June respectively, and the Beginning of Autumn could spray 3% potassium dihydrogen phosphate every 10 days for a total of 3-5 times.

4. Temperature

When the temperature is 14 ℃, Dendrobium Huoshan will begin to grow, and the suitable growth temperature is 20 ℃-28 ℃ and the humidity is about 70%. When the temperature is above 32 ℃ and the relative temperature is below 20%, part of the veins will turn yellow and the leaves will droop.

5. Shading

Huoshan Dendrobium is more suitable to grow in a half-shaded and half-sunny environment, and is more afraid of exposure to the sun. Two layers of 90% shading net are needed in summer and autumn, and one layer of shading net can be used in other seasons.

VI. Anti-freezing

The artificially cultivated Huoshan Dendrobium needs to take anti-freezing measures in winter in Jianghuai area, especially the test-tube plantlets planted in that year, in addition to building a greenhouse to prevent freezing, but also need to be covered with a layer of soil canvas to cover the seedbed. Generally choose to cover from mid-December to late February of the following year, winter seedlings should not be too wet, in order to prevent icing and damage plant roots.

VII. Prevention and control of diseases and insect pests

1. The common diseases of Dendrobium huoshan are black spot and anthracnose, which are mainly prevented during the period. In the early stage of the disease, 50% carbendazim or 50% methyl thiophanate 800-fold liquid spray is used for 2-3 times.

2. The common pests of Dendrobium huoshan are snails, which usually appear from March to November. They like to eat the tender stems and leaves of Dendrobium. During this period, 5% granule Meita (tetrameric acetaldehyde) can be applied, about 1 kg per mu.