The choice of soil is the first and most important step in orchid cultivation. Generally, you can choose fertile humus soil, which has good drainage and ventilation and can make orchids absorb nutrients better.
2. Fertilization requirements.
Fertilization is very important in orchid cultivation methods and matters needing attention. If you want orchids to grow rapidly, fertilization is essential, and it needs to be applied once a month during their growing period, which can also lay a good foundation for their flowering.
3, watering requirements.
Watering is an indispensable link in the process of orchid cultivation, but some people say that water should be paid attention to. It is best to keep the principle of seeing dry and seeing wet, and remember not to cause water accumulation when watering, otherwise it will easily lead to orchid root rot, which everyone should remember.
4. Lighting requirements.
In the cultivation methods and precautions, light is also a point that needs attention. When the sunshine is not strong in spring and autumn, we can let it receive light all day. When the sun is too strong in summer, we need proper shading treatment to prevent the leaves of orchids from turning yellow.
5, pest control.
In the growth process of Orchidaceae plants, if they are not properly maintained, it is easy to appear harmful phenomena such as pests and diseases. When this phenomenon occurs, it must be handled in time. If the time is prolonged, it will easily lead to plant death.
(1) scale insects.
Scale insects are common pests in orchids. It mainly feeds on the juice in the leaves of orchids, and gradually sucks it in the leaves with mouthparts, causing orchids to wither due to insufficient nutrition.
Control method: 3% pyrethrin 1000 times solution can be used for spray killing when controlling this pest.
(2) aphids.
Aphids are big pests that many plants will encounter, and orchids are no exception. The seedlings, which mainly threaten orchids, will gradually suck the juice of the seedlings, resulting in the failure of the seedlings to grow and die. It can be seen that aphids are still very harmful among the diseases and insect pests of orchids.
Prevention and control methods: the hazard period of aphids alternates between spring and summer every year, so special attention must be paid during this time period. To deal with this pest, trichlorfon 1000 times of liquid medicine can be sprayed to kill it. Generally, spraying for three times can completely eliminate this pest.
Extended data:
Frequently asked questions and solutions:
1, the plant grows slowly: a, the flowerpot is too large: it means that the plant is not stagnant or growing slowly; B, poor water permeability and air permeability of the basin soil: it shows that the basin soil is too wet to dry, the leaves are dull, gradually thinning, and the color becomes lighter; C, soil leakage: all the soil flows out in one watering moment (except the bark sapphire matrix), and the soil leaks.
2. New leaves and buds are not curled: lack of water, insufficient soil fertility or insufficient light, or diseases and insect pests.
3. Yellowing of leaves: poor water permeability of basin soil leads to long-term over-wetting of basin soil; Hypertrophy; The basin soil is too dry; It is common that the soil in the pest basin is too wet. Excessive drying usually causes leaves to dry, and rarely causes leaves to turn yellow.
4. It grows well and does not bloom: a. There is no temperature difference in the environment. Under normal circumstances, temperature difference can promote flower bud differentiation; B, the content of nitrogen fertilizer in the soil is too high, which leads to excessive growth of plants and insufficient potassium fertilizer; C, top advantage. Treatment methods: a, it is best to change the temperature difference between day and night; B, adjust the soil, change the soil or add some fertilizers with high potassium content; C. Prompt in time to eliminate the top advantages.
References:
Baidu encyclopedia-orchid