How to control the temperature and humidity of orchids

Cutting the stems to promote germination All kinds of orchids, especially black orchids (primrose), should be cut off as soon as possible after the flowers have withered, and do not let them bear fruit, so as not to consume nutrients and affect the germination of axillary buds. After the peduncle is removed, the leaf surface and back of the orchid should be gently rubbed with soft gauze or dimethoate or dichlorvos solution dipped in a cotton ball to remove eggs, dust and stains, and welcome the arrival of the new growth season.

Before potting all kinds of orchids, the water supply should be stopped for 3-5 days, and when the planting material in the pot is dry, carefully pour out the orchid plants and potting soil, and try not to break the roots. After removing the rotten roots, each plant of Molan is divided into sub-mother calamus, autumn orchid and cold orchid, Xia Hui and Chunlan are divided into about 5 calamus per component, first wash with disinfectant or water, the root and the wound can be dotted with sulfur powder, and then dry, and then the root becomes soft and white and then potted. The potting soil should be fertile and sterile new planting material, and the planting material must protect the roots, the roots must be pasted with planting materials, the new plants are outward, the old plants are inward, and the depth is 1 3 degrees to the soil surface exposed by the orchid.

After the plant is potted with soil, it is placed in a shaded shed, sprayed with a little mist water on the leaf surface in the morning and evening, and then poured enough root water after 24 hours of wound healing. After 15 days of potting, it can be transferred to normal management.

Light regulation Although half flowers prefer a cool and ventilated environment, they also need the necessary sunlight. If the potted orchid is placed in the shade all year round, the leaves will grow long, the flowering will be scarce, and the organs of the orchid plant will become weaker, and diseases and pests will easily occur. Therefore, it is necessary to adjust the light reasonably to facilitate its robust growth.

Generally speaking, green leaves, exotic flowers and dwarf species need 60 full sunshine in spring and 50 later; Linear Art Orchid needs 50 full sunshine in the spring and 30 in the future. In order to regulate the light, the flower production professional household can use the shed to cultivate, the conditional family can build an orchid shed for nurturing, the use of balcony type flower can be set up on the movable plastic on the shelf, need to open from time to time, do not need to close the cover, in order to ensure the normal growth of orchids.

Fertilizer supply When the orchid plants are dormant, semi-dormant and have just been divided, they cannot be absorbed by fertilizer; In the rainy season with high air humidity, excessive application of fertilizer and water will increase the burden on the roots, and in severe cases, it can hurt the roots and leaves, and even cause death. In order to ensure safety, orchids should generally not be fertilized during the dormant period, and should not be fertilized at the roots when the plants are just divided. If you need to give fertilizer, you can spray potassium dihydrogen phosphate solution on the foliar surface in the afternoon on a sunny day, spray once every 7 days, and spray fertilizer at the same time, you can mix dimethoate or dichlorvos to treat insect pests.

Sterilization and insect control Around the place where orchids are cultivated and pot orchids, disinfection and sterilization drugs (such as virus clearing, chlorothalonil, sterilization, tobuzin, etc., diluted according to the instructions, alternately used) can be sprayed once every 7 days, and once every 10 days with insecticides (such as dimethoate, dichlorvos, trichlorfon, etc., diluted according to the instructions, alternately used). It should be noted that 2 hours after the application of insecticides, the leaves of the orchid should be sprayed with water once to avoid pesticide damage.

Orchid likes shade, avoids direct sunlight, likes moisture, avoids dryness, likes fertile, rich in a lot of humus, well-drained, slightly acidic sandy loam soil, and should be in an environment with air circulation.

The optimal growth temperature of orchids is 15-25, and it needs to be kept at about 15 in the breeding period to facilitate the cultivation of seedlings. Generally speaking, when the temperature exceeds 30, the orchid will grow slowly or stop growing, and in the morning of 0-15, the orchid will enter a semi-dormant state, and the temperature will stop growing when the temperature is below zero. Therefore, the temperature of orchids should be controlled, and the appropriate temperature can promote the growth of orchids and the absorption of nutrients.

Orchids prefer a cold environment, the general temperature is about 15 degrees to 30 degrees, all orchids are long-term, you can raise orchids. When the indoor temperature is relatively constant, the danger of raising orchids is less. But if you raise orchids outdoors, you must pay attention to the stability of the temperature.

What temperature is the orchid suitable for.

Suitable for orchidsThe growing temperature is between 20-30, preferably around 26-28In summer, we should pay attention to shading and cooling, and in winter, we should pay attention to keeping warm and anti-freezing, and orchids and ground-planted orchids have different requirements for low temperatures.

1. Winter temperature control

Some ground-grown orchids can withstand low temperatures above minus 10, because the ground temperature is warm and the leaves are warmed and then adjusted; Potted orchids lack the above factors, and when the temperature is about to drop below 0, they should be transferred to an environment with a temperature of more than 3-5 in advance to avoid freezing water in the orchid plant and causing frost damage.

2. Summer escape

In summer, it is necessary to find a way to control the temperature of the orchid placement within 32, and if it exceeds 35, it is necessary to force the temperature to be cooled, in addition, the orchid is also easy to get sick.

If the temperature cannot be controlled within 32, it is necessary to strengthen ventilation to reduce the probability of disease, good ventilation can accelerate the evaporation of water in the basin and reduce the number of harmful bacteria.

What humidity orchids are suitable for.

The humidity suitable for orchid growth is between 40-80%, and the optimal humidity is between 50-70%.。Generally, the humidity of more than 80% is also prone to high temperature and high humidity environment, so the humidity of less than 40% of the orchid will be decentralized, water stiffened, or even shrunk.

When maintaining orchids, we should avoid drying out and getting too wet, and water them according to the planting materials, ventilation, weather, etc., and flexibly control the number of waterings.

The general principle is to keep the potting soil moist, not damp, and slightly moist, and do not let the pelvic cavity accumulate water or be in a state of high moisture content for a long time, which can easily lead to panting and rotting root rot seedlings.

Effect of temperature on orchid growth.

1. Promote the growth of orchids

The photosynthesis of plants is affected by temperature, such as respiration, transpiration, and water metabolism processes, which also affect the absorption and conduction of water and nutrients by plants, thus affecting the normal growth of plants. As a result, orchids can grow well in the right temperature range.

2. Promote the absorption of nutrients

In the temperature range of 20-30, orchids are most suitable for fertilization. Fertilization at this time is conducive to the absorption of nutrients by the plants and the rapid growth of leaves. If the temperature is too high or too low, it will affect the volatilization of fertilizers, affect the photosynthetic efficiency, and affect the synthesis of nutrients.

1.The suitable temperature for the growth of orchid flowers is between 15-25, and there is no need to worry when the temperature of breeding has a small fluctuation, but the fluctuation should not be too large.

2.It is not a hardy plant, so the minimum temperature should also be kept at around 10, and if the temperature is too low in winter, it will suffer from wind chill and frostbite.

3.In addition, it is necessary to pay special attention to the summer, and when the temperature rises significantly, it is necessary to cool down.