How to make the orchid blossom early

Under conventional cultivation, the vegetative growth period (childhood age) is generally about 4 to 5 years before it can blossom. In order to shorten their childhood age and blossom earlier, it is necessary to do the following:

Preparation of culture soil: Magnolia basin soil should be fertile, loose, rich in organic matter, good aeration and permeability, and comprehensive and sufficient nutrients. The preparation ratio is as follows: coniferous soil 20%, garden soil 20%, compost 20%, cake residue 20%, river sand 20%. Persisting in turning the basin and changing the soil once a year can ensure an adequate supply of nutrients and promote the early growth and rapid development of leaves.

Control nitrogen and increase the application of phosphorus and potassium fertilizer: on the basis of preparing the cultivated soil, the scientific topdressing should be achieved to prevent the partial application of nitrogen fertilizer. If there is too much nitrogen, it will grow too much to blossom. When the leaves reach more than 10, it is necessary to control nitrogen and increase the application of phosphorus and potassium fertilizer, such as potassium dihydrogen phosphate, plant ash, etc., to promote leaf health and early flowering.

Adjust the light: adjust the illumination of the orchid to avoid strong light in summer, penetrate light in spring and autumn, and grow light in winter. " In the hot summer, put the flowerpot in a cool and ventilated place to prevent the sun from burning. The transmittance gradually increased at the beginning of October. Wait until winter and then move it to a sunny place indoors. Note that the light is not less than 4 hours a day in autumn and winter, and the temperature is kept between 10 ℃ and 20 ℃. Adjusting light and temperature can accelerate the transformation from vegetative growth to reproductive growth and blossom ahead of time.

Low temperature treatment: in winter, Magnolia should not enter the house too early, should first be in the outdoor 5 ℃ environment low temperature exercise for more than 10 days, water control, fertilizer control, but be careful of frost. After entering the room, keep the indoor temperature from 10 ℃ to 20 ℃, and strengthen the management of fertilizer and water, so that the flower moss can be drawn in late winter and early spring, and the flower bud differentiation and early flowering can be promoted by adjusting the temperature in greenhouse.

Increase the light and promote the flower: on the basis of strengthening the regulation of fertilizer and water, adopt the treatment of changing temperature and increasing light. The temperature was controlled from 15 ℃ to 18 ℃ during the day and 8 ℃ to 10 ℃ at night, with 10 hours of light per day. This kind of temperature and light treatment can bolt and bud in about 30 days and blossom in about 50 days. When flower moss appeared in the axilla of leaves, the flowering quality could be improved by adjusting the temperature to 25 ℃ to 30 ℃ and increasing the supply of fertilizer and water.