Culture method and maintenance knowledge of Orchid

Soil: it can be cultured with humus soil or mountain humus soil. Lighting: accept scattered sunlight properly, but avoid direct strong light. Temperature: the suitable temperature for growth is 16-24 ℃. Watering: water once every 2 days in spring and autumn, 1-2 times a day in summer, and once a week in winter. Fertilization: urea fertilizer and potassium dihydrogen phosphate can be applied during the growth period. Pest control: use 500 times liquid water to add soap powder to kill insects.

1. Soil

1. Orchids are suitable for growing in weakly acidic and humus soil, and can be cultured in humus soil or mountain humus soil.

2. In the south, local humus soil, vermiculite, perlite and rotten leaf soil can be used to prepare loose and aerated culture soil. The formula is 50% rotten leaf soil plus 50% perlite, and rotten leaf soil can use fallen leaves, plus the same amount of perlite.

Second, lighting

1. Orchids like to grow in a cool environment and are afraid of direct sunshine. in spring, summer and autumn, they can be shaded before 9: 00 a.m. to 6: 00 p.m., open the curtains in the morning and 6: 00 p.m., and properly bathe in scattered sunlight.

2. It can be moved to indoor weak light for maintenance in winter, but direct sunlight should be avoided.

Third, temperature

1. The suitable temperature for orchid growth is 16-24 ℃. When potted in the north, they should be cultured indoors before Frosts Descent and when the temperature drops to 5 ℃. During this period, windows should be often opened for ventilation, and the indoor temperature should be kept at about 10 ℃.

2. In Grain Rain season, the indoor temperature will be relatively low in winter, which should be kept at 10-12 ℃ during the day and 5-10 ℃ at night. The temperature and humidity should not be too high, and the temperature should not exceed 30 ℃ in summer.

Fourth, watering

1. Orchids like to be moist and avoid dryness, and the watering times can be determined according to the growth situation and the local climate, so as to achieve the principle that it is not dry in autumn and not wet in winter. It can be watered every 2 days in spring and autumn and 1-2 times a day in the peak growth period in summer.

2. When the winter temperature is low, the orchid is dormant and can be watered every other week to promote the growth and development of the orchid. When watering, it is necessary to avoid water droplets splashing on the leaves, which will lead to black spots on the leaves and affect its ornamental effect.

5. Fertilization

The main results are as follows: 1. Orchids are first treated with base fertilizer during culture, and then topdressing during the growing period. Liquid fertilizer and foliar fertilizer can be selected, and the concentration is lighter than that of other flowers.

2. The orchid should change the culture soil once a year. During the growth period, 15% dilute pancake fertilizer and water can be properly applied, or 0.1% urea fertilizer and 0.2% potassium dihydrogen phosphate fertilizer water, once every 18 days or so.

3. During flowering, 0.2% potassium dihydrogen phosphate can be sprayed to the leaves for 2-3 times to promote the growth of orchids. Orchids belong to fleshy roots and can not be treated with unripe fertilizer, which is easy to cause rotten roots.

VI. Prevention and control of diseases and insect pests

1. The common diseases of orchids during the growth period are aphids and shell insects, which can be removed by hand or tweezers.

2, aphids grow relatively small, you can use water 500 times liquid to add soap powder to kill insects, spray water every 12 hours after spraying, need to spray for 5 days.

VII. matters needing attention

Orchids love to grow in dry but not dry soil, generally too wet soil will lead to root hypoxia, lack of oxygen, will produce a lot of alcohol to cause rotting roots, in order to avoid root rot disease, to often turn the soil, so that the soil oxygen is sufficient, watering should also be a small number of times.