Seedling and cultivation technology of Dendrobium, cultivation technology and methods of Dendrobium

The cultivation technology of Dendrobium officinale can be divided into four aspects: selection of the main master, propagation, field management, and pest control.

1. Select the main tree to plant broad-leaved tree species with thick bark, more water, dense canopy, and longitudinal grooves in bark; Stone planting is selected for rough ground, easy to absorb moisture, and the surface is attached to humus or moss; For shade cultivation, choose to build a 15cm high box with bricks or stones under a shady and damp forest, mix humus, fine sand and gravel into the box, and build a 100 120cm high shade shed on the surface of the box.

2 Reproduction can be propagated by ramel cuttings and tall buds, mainly rammet. Choose 1-year-old or 2-year-old plants, tender green color, more germination, developed root system, no diseases and pests as seed plants, cut off the excessively long fibrous roots, cut the clusters, divide into small clusters, each cluster has 5 7 stems with leaves, you can plant.

3 Field management.

Weeding and fertilization should be weeded twice a year, usually around the spring equinox to Qingming and the beginning of winter, to remove weeds and litter, combined with weeding for top dressing.

Adjust the shade degree of tree cultivation, and cut off the branches that are too dense with the main plant in winter and spring; For shade cultivation, the shade shed should be uncovered in winter to let in light.

Pruning When budding or harvesting in spring every year, some old or dead branches, as well as overgrown stems and branches, should be cut off to promote the growth of new shoots.

Flip the bag according to the growth situation, remove the dead roots and old roots, divide the plants, and cultivate them separately to promote planting and growth.

4 Pest control The common pest is the snail, which harms young stems, young leaves, flower buds and young fruits, and can be controlled by manual hunting, poison bait trapping or sprinkling lime.

Potted dendrobium needs to be light, well-drained, with peat moss, fern roots, bark blocks and charcoal

Dendrobium orchid ** admires (16 photos) breathable substrate. At the same time, the bottom of the pot is padded with tiles or broken brick chips to facilitate root development. The cultivation place must be fully lit, which is more conducive to the growth and flowering of Dendrobium. During the spring and summer growth periods, dendrobium orchids should be fully potted.

Watering to speed up the growth of the false bulbs. After September, the watering is gradually reduced to allow the false bulbs to mature gradually, which can promote flowering. Fertilization is applied once every ten years during the growing season, reduced in autumn, and completely stopped fertilization during the maturity period of pseudocorms and dormant period in winter.

Dendrobium cultivated for more than 2 3 years, the plants are crowded, the root system is full of pots, and the potting material has rotted and should be replaced in time. Both evergreen and deciduous dendrobium are repotted after flowering. When changing pots, it is necessary to hurt the roots less, otherwise the leaves will yellowing and fall off at low temperatures.

The planting method of Dendrobium is as follows:

Preparation of substrate: The base soil should be prepared with moss, gravel, coconut peat, sawdust, peanut shell and moss for planting dendrobium. Covering the soil and burying the roots:

Spread crushed tiles to the bottom of the pot and cover it with a layer of base soil, then plant the dendrobium seedlings in the potting soil. Post-management: Water every two days during the breeding period, and bury the rotten rapeseed cake into the roots during the growing season.

1. Prepare the matrix

The root system of Dendrobium is fragile and can not be planted with soil, so it is necessary to use moss, gravel, peanut shell, coconut peat, sawdust and other materials to prepare the substrate before planting to improve the air permeability of the soil, and to select pots with drainage holes at the bottom and side as planting utensils.

2. Planting

When planting dendrobium, it is necessary to spread broken tiles to the bottom, and then fill the prepared substrate into the pot, and then select the dendrobium seedlings with good growth and no pests and diseases, and then use disinfectant treatment to plant them in the potting soil, and finally use the substrate to bury the root system of the dendrobium.

3. Post-management

Dendrobium likes to be moist, during the breeding period to water every two days, keep the soil moist, the temperature is higher in summer, you can water every morning and evening, spray water mist around at noon, and Dendrobium likes fertilizer, the growth period should be buried near the root of the rotten peanut shell, rapeseed cake and other fertilizers, to promote plant growth.

The cultivation technology of Dendrobium officinale should pay attention to seed ripening, transplanting time, cultivation medium, cultivation conditions and attached main cultivation.

1. Seed ripening.

Soak the seeds in warm water for 3 hours, and then put them on the culture soil of the greenhouse for 3 4 days, keep the temperature at about 20 degrees, and germinate in about 4 5 days.

2. Transplanting time.

The cultivation time of Dendrobium officinale is generally spring and autumn every year, and spring is better than autumn, the temperature is 12 25 during this time, and the air humidity is large, and the survival rate of test-tube seedlings transplanted after bottle is higher and the growth time is longer. Secondly, from mid-September to late October, transplanting during this period should especially do a good job of cold and frost protection.

3. Cultivation medium.

The biological characteristics of Dendrobium officinale require that the cultivation substrate have good water retention and ventilation, and large-scale production requires that the raw materials of the cultivation substrate are easy to obtain and easy to operate.

4. Cultivation conditions.

The cultivation of Dendrobium officinale is required to be carried out in the greenhouse, and the construction of the greenhouse requires ventilation, shade and rain protection, and insect-proof nets, and according to the growth habit of Dendrobium officinalis, consider the natural factors such as light, temperature, humidity and ventilation of this extremely high site; The suitable temperature for the growth of Dendrobium officinale is 15 30, Dendrobium officinale requires to keep the substrate moist, and the air humidity is kept above 80% as well, but it can not accumulate a ruler of water, and it is best to use sprinkler irrigation or drip irrigation when watering, and it is not allowed to flush irrigation.

5. Attached to the main cultivation.

Dendrobium officinale is an epiphytic plant, which mainly grows on the shady trunk or limestone of some tall trees under natural conditions, and can be planted with thick bark, high moisture content, dense crown, grassy or waxy leaves, and broad-leaved tree species with longitudinal grooves in bark (such as kudzu tree, pear tree, camphor tree, etc.) as the cultivation master.

For stone planting, stones with rough texture, loose bubbles that are easy to absorb moisture, and humus or moss are attached to the surface are selected as the planting attachments; When cultivating humus soil, choose to build a 15cm high box with bricks or stones under the shady and humid woods, mix the humus macromold soil, fine sand and gravel into the box, and plant it after leveling, and set up a 100 120cm high shade shed on the surface of the box.

Cultivation environment, when cultivating dendrobium, it is necessary to choose a semi-shaded and sunny environment, and the room temperature needs to be controlled above 0 in winter; The choice of soil can be made by mixing bark, fern roots, and sand and gravel into a substrate for cultivation; Dividing propagation, which can be used in spring every year, it is necessary to select robust seedlings and plant them from the roots into the soil; Transplanting and maintenance, after Dendrobium takes root, it can be directly transplanted into the soil, and the diluted potassium dihydrogen sulfate solution is applied every half month.

Dendrobium has a certain resistance to negativity, suitable for growing in a semi-yin to sunny environment, the air humidity of the growth environment needs to be controlled at about 80%, and the room temperature pants sedan needs to be controlled above 0 in winter. When the light is too strong, it is necessary to take shading measures to avoid burning the leaves and affecting the normal growth of Dendrobium.

When planting Dendrobium, it is necessary to choose a suitable pot according to the size of the plant, and mix the bark, fern roots, sand and gravel, moss and pine bark into a cultivation substrate to ensure that the soil has strong air permeability and drainage, so that the root system of Dendrobium can breathe better, thereby improving the yield and quality.

Dendrobium can generally be propagated by the method of dividing, and the dividing can be carried out in spring every year, during which the air humidity is high, and the branches can resume growth as soon as possible after dividing. To divide the plants, select a sturdy and disease-free seedling, break it from the rhizome, and plant it in the soil with a root system.

After a few weeks, the seedlings will grow, and after the seedlings have grown, they can be transplanted into the soil. Note that the soil needs to be in a moist state during the growth period of Dendrobium. And apply the diluted potassium dihydrogen sulfate solution every half month.

Dendrobium can be harvested after 2 to 3 years of transplanting.