Timely pruning of poinsettia from the cutting into the live transplant to flowering, pruning three or four times, to promote more branches. The latest time in mid-August is appropriate. Shears grow too early and postponing late delays flowering. As early as in the greenhouse, Poinsettia flower buds have been formed in mid-October. At this time, Poinsettia is moved into the greenhouse and light is given for 7 hours each day. Poinsettia is a short-day plant, and short-day and early-growth greenhouses are two key factors for the early flowering of poinsettia. In mid-October, under the condition of no warming, the average high temperature reaches 30°C and the average low temperature reaches 14°C. The diameter of the flowers is 35mm and the number of red pods is 26. The single blemish has a width of 4cm, a length of 15cm and a vermilion color. With plenty of sunshine, the poinsettia shines in the sun, and when it enters the greenhouse, it should be placed in a place where the sun shines directly, giving full illumination, making it fully capable of photosynthesis, and providing sufficient nutrition for the growth and development of red yeast rice. Strengthen fertilizer water Poinsettia is hi fat flowers. The flowering period should be three days after the application of a fully fermented and decomposed organic fertilizer, such a large flower, green leaves, bright colors. Soil: Poinsettia prefers acidic sandy soils, with a pH of 5.5 to 6 being optimal for growth. Do not alkalinize pottery, in the growth period can be combined with watering and fertilizing every week, pour a fertilizer. Temperature: The cutting propagation is suitable for 15-20°C. The optimum temperature for growth is from April to October to 16 to 25°C, from November to March of the following year to 13 to 16°C. The room temperature should be maintained at about 15°C at night and must not be less than 5°C. Room temperature around 12 °C, can extend the viewing time. Light: Poinsettia prefers a warm, moist, sunny environment. In May, the plants were moved to a well-ventilated and well-ventilated place to raise the pipe. Avoid direct light in summer, you need to take a arbor, shed on the ground often watering, increase air humidity. China Agricultural Network Editor
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