Cut stems to promote germination.

All kinds of orchids, especially cymbidium, should be cut off as soon as possible to prevent them from bearing fruit, so as not to consume nutrients and affect axillary bud germination. After the pedicels are cut off, use soft gauze or cotton balls to dip in 0. 1% omethoate or dichlorvos solution, and gently rub the leaves and back of orchids to remove eggs, dust and stains to welcome the arrival of the new growth period.

Divide plants into pots

Water should be stopped for 3-5 days before all kinds of orchids are divided into pots. When the plant materials in the pot are 70% to 80% dry, carefully pour out the orchid plants and pot soil to prevent the orchid roots from breaking as much as possible. After removing the rotten roots, each plant of cymbidium sinense is divided into progeny calamus, and each group of Qiu Lan, Hanlan, Xiahui and Chunlan is divided into about 5. Wash Chinese cymbidium with sterile water or clean water, light Chinese cymbidium root and wound with sulfur powder, air dry, and put the Chinese cymbidium root into a pot after it becomes soft and white. New fertile and sterile plant materials should be applied to the upper basin soil, and the roots must be protected and attached to the plant materials. The new plant is outward, the old plant is inward, and the depth of the blue head exposed from the soil surface is 1/3. After potting the soil, place the plant in a cool place, spray a little mist on the leaves in the morning and evening, and then water the feet after the wound heals for 24 hours. /kloc-normal management can be transferred after 0/5 days.

Lighting adjustment

Half a flower likes a cool and ventilated environment, but it also needs the necessary sunshine. If potted orchids are kept in the shade all the year round, the leaves will grow white, the flowers will be scarce, and the organs of orchids will weaken, which is prone to pests and diseases. Therefore, it is necessary to adjust the light reasonably to promote its robust growth. Generally speaking, green leaves, exotic flowers and plants and dwarf species need 60% full sunshine in spring and 50% in the future; Line Yilan needs 50% full sunshine in spring and 30% in the future. In order to adjust the light, flower production professionals can use greenhouses for cultivation, and families with conditions can build greenhouses for orchid cultivation. People who use balcony flowers can set a movable plastic frame on it, which can be opened when needed and not closed when needed to ensure the normal growth of orchids.

Fertilizer supply

Orchid plants are dormant and semi-dormant, and cannot be absorbed by fertilization when they just split into pots. In rainy and humid seasons, excessive fertilization and watering will increase the heavy burden on orchid roots, and even cause death in severe cases. In order to ensure safety, orchids are generally not fertilized during dormancy, and it is not appropriate to fertilize the roots when they are just planted in pots. If fertilization is needed, the leaves can be sprayed with 0. 1% potassium dihydrogen phosphate solution every 7 days 1 time. When spraying chemical fertilizer, 0. 1% dimethoate or dichlorvos can be added to control pests.

Sterilization and pest control

In orchid cultivation areas and around potted orchids, disinfection and sterilization drugs (such as virus, chlorothalonil, sterile spirit, thiophanate, etc. , diluted according to the instructions, used alternately) 65,438+0 times every 7 days, insecticidal drugs (such as omethoate, dichlorvos, trichlorfon, etc. , diluted according to the instructions, used alternately) can be sprayed once every 65,438+00 days. It should be noted that 2 hours after application, the leaves of orchids should be sprayed with clean water 1 time to avoid phytotoxicity.