Senecio Cruentus is a perennial herb of the Asteraceae family. It is often cultivated once a year because its leaves resemble cucumber leaves and its name is named after chrysanthemum heads. It is beautifully planted, with a cluster of flowers and aromas. It can blossom on New Year's Day, the Spring Festival, and a long flowering period. It has become a key flower for beautifying the living room, adding a festive atmosphere and a large-scale conference setting. It is suitable for the growth of fertile sandy loam, hi warm and moist sunny environment, is a kind of potted flowers suitable for greenhouse cultivation, low cost and high efficiency. The greenhouse potting technology is briefly described as follows. First, the time and method of nursery cineraria from May to November can be planted seedlings. Requests for New Year's Day, Spring Festival flowering can be nursed in mid-August; require "May 1" flowering can be raised in late September; require "11" flowering, can be nursed in mid-May. The seeds of cineraria are very small. Therefore, raising seedlings and seedlings is the key to planting cineraria. A 50-60 cm long, 30 cm--40 cm wide, 5-cm-7 cm high, hard plastic seedling tray with many small holes at the bottom, with rotted and sifted manure, humus, and fine sand Soil, fully mixed in a ratio of 2:1:1:1, and plated. The disc soil is fitted with micro fish back shape, the soil surface is 1 centimeter away from the side of the pan, and then rolled round with a round bottle, the seeds of cineraria are evenly sowed on the top (1 grain - 2 grains/cm2), and then lightly scattered 0.3 cm Thick soil, rolling flat. Put the seedling plate in water soaked in the seedling plate, place it at 19-21°C, and moisten it with a warp knitted bag. After 7 days, the seeds germinated and the warp-knitted bags were removed. Pay attention to keeping the disc soil moist. Second, timely planting soil basin to strengthen the management When the disk grows to 3 true leaves (25 days -30 days), it is timely to be planted in 10 cm 10 cm nutrients is (aluminum soil with nursery soil). After planting, place the pole in the light and the temperature is 18°C-20°C. When seedlings grow to 5-6 leaves, the whole seedlings can be transplanted into 17 cm-20 cm pots. Basin soil should be loose and fertile, moisturizing, and good water permeability. Pure chicken, horse, and pig manure that are thoroughly roasted and sieved, mixed with a small amount of humus, garden soil, and fine sand, can be mixed in a 3:1:1:1 ratio. After colonization, the pots should be placed in a pre-made width of 80 cm in height and 10 cm in height, which is conducive to watering and moisturizing; the temperature of the greenhouse should be kept at 15°C-21°C, not more than 25°C, and the relative humidity should be 60%. -65%, maintain good ventilation and light. Every half month, pour a dilute (2‰-3‰) nitrogen, phosphorus, and potassium liquid fertilizer to make the body grow lush and compact. After about 90 days to 100 days, you can flower. For "11" flowering, the greenhouse should be treated with 75% shade nets and ventilation. Always check for downy mildew and aphids, if any chlorothalonil and dimethoate are found. Third, the pollination and harvesting cineraria high, middle and low three varieties, potted plants should be used in the low-type varieties, plant height 20 cm -30 cm, spend more and intensive. The natural hybrid variation of G. rebaudiana is relatively large, and artificial pollination and seed production are required, especially in greenhouses in winter, and artificial seeds are not pollinated. Cross-breeding can be performed according to the selected fine varieties, and the same color and different colors of varieties can be used for artificial pollination. And cover with a transparent plastic bag, until the flowers dry, cut away impurities, leaving the hard shiny cineraria seed, preserved in a dry place.
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