Cultivation techniques of Cymbidium hybridum;
1, seasonal selection
Chinese cymbidium should be planted in spring. Turnover can also be carried out in autumn. Cymbidium sinense originated from the warm land in the south of China, so the required light is slightly stronger than that in summer, but the cold tolerance is slightly weaker. It should be sheltered from rain in winter to prevent freezing injury when orchid is built at low temperature.
2. Wash basin
It is better to choose potted orchids with rough texture, no axis, porous edges and porous feet. Thin plastic soft pots are the most economical for mass production. Exhibition orchids are cultivated in simple small pots so that they can be displayed in elegant pots in time.
3. Planting materials
Plant materials should be materials with loose texture, good aggregate structure, rich organic matter, good air permeability and strong drainage performance, which are conducive to aerobic microbial activities. The following mixed plant materials can be selected to enhance the growth of cyanobacteria: humus soil 40%, burnt soil 40%, coarse sand 20%; 30% of mushroom soil, 30% of burnt soil, 25% of coarse sand and 0/5% of chaff/kloc; 40% humus, 40% coarse sand and 20% chaff.
4. Maintenance
Wild cymbidium is mostly born in the sunny side of hillside fields or under the sparse forest at the top of the mountain. Therefore, Cymbidium hybridum is a kind of orchid with sufficient light. Daily maintenance can be placed on the orchid shelf where the face is easy to see light, so as to avoid shading as much as possible, otherwise it is not easy to bloom. Some Cymbidium hybridum varieties need to be exposed to the sun for daily maintenance before flowering.
The flowering period of Cymbidium hybridum is usually in the high temperature season from July to September. Thrips and aphids are the most likely to invade buds and flowers, resulting in short buds, browning and dying, and the flowers are eaten beyond recognition, which seriously affects the ornamental value. Therefore, from germination to full bloom, Cymbidium hybridum should give priority to prevention, combine prevention with control, and spray drugs in time to control pests and diseases.
5, fertilization
Germination accelerating fertilizer (late spring and early summer): dry fertilizer 1-2 times, external fertilization 1 time every 65,438+00 days, mainly nitrogen and potassium fertilizers, to promote the germination of aboveground parts and leaves, and the root system expansion of underground parts.
Development fertilizer (late summer and early autumn): the leaves of new buds are elongated, which makes them grow vigorously. Nitrogen fertilizer is the main fertilizer, which is applied diligently and thinly. Potassium is the main fertilizer to make new buds grow vigorously after they open leaves. Spray Trim powder with potassium diazophosphate once a week.
Flower-promoting fertilizer: when the leaves of new shoots no longer grow, they will be transferred to the stage of flower bud differentiation, with phosphorus as the main fertilizer, and fertilizer will be applied twice dry and once a week.
In late autumn and early winter, orchids will go into dormancy from cold dew to beginning of winter. Apply dry fertilizer once, trim foliar fertilizer twice, and spray foliar fertilizer once every 10 day to ensure safe overwintering and frost, and improve the germination rate in the next spring.