Dwarf Dahlia Flower Pot Technology

Cutting propagation can be carried out from early spring to summer and autumn, and the survival rate is highest in the greenhouse from March to April. The roots were planted in rot-leaf soil and the top buds were exposed on the soil surface. The temperature in the greenhouse was maintained at 15°C to 22°C. When the top buds grew to 8 cm, a pair of leaves were left at the base to cut the cuttings and transfer them to the sand bed. In 15 to 20 days, rooting can take place, and after 30 days, the plants can be planted. Can also be in the stem and leaf growth period, cut axillary bud stem section, insert sand bed, rooting 15 to 25 days after insertion, the survival rate is high.

Cultivation and management Cutting seedlings are transplanted after rooting. They can be planted in seedling trays of 5 cm in diameter, and the temperature in the greenhouse is controlled at about 16°C. After 30 days, they were planted in pots 12 to 15 cm in diameter. After 10 days of colonization, foliar was sprayed with 0.05% to 0.1% of Chlormequat for 1 or 2 times to control the height of Dahlia. Can also be picked up when the seedling height of 15 cm once, increase the branches, and promote its more flowering. After the flower fades, it must be removed in time. This will not only reduce nutrient consumption, but also prevent the growth of stems and leaves from affecting the growth of shoots and leaves. It will also promote the formation of new flowering branches and extend the viewing time. During the growth process, watering must be strictly controlled to prevent stems and leaves from becoming long and promote stem diameter and large flowers. At high temperatures in summer, more water spray is beneficial to the growth of stems and leaves, but potting soil cannot be too wet. When the plants are slightly withered before the frost, cut the stems and leaves, keep the base 10 to 15 cm from the ball, dry 1 to 2 days until the epidermis is slightly dry, set the box in the dry or buried in the wet sand, the temperature is maintained at 5 °C ~ 7 °C to prevent freezing, and to avoid mildew caused by high temperature and humidity.

Diseases commonly used in pest control are powdery mildew and brown spot, and 50% thiophanate-methyl wettable powder 1000 times can be sprayed except for ventilation. In the summer, locusts and spider mites are common and can be sprayed with 40% triclosan EC 1000 times.

Flowering regulation general regulation: use different flowering varieties, stage cutting. Such as early flowering varieties in June cuttings, late flowering varieties in late April and early May cuttings, flowering in the National Day. Promote cultivation: select early flower varieties to be planted in the greenhouse, germinate in January, and apply the pot in February. The night temperature should not be lower than 15°C, and the daytime temperature should be maintained at 20°C～22°C. It can show buds in late March and begin in early May. flowering. Due to the lack of light in the late winter and early spring, artificial light must be added to increase the daily length to 14 hours. Cut-flower cultivation in winter: Cut flowers for New Year's Day and Spring Festival can be used for cultivation. Early flower varieties were selected and the mothers of the ear harvesting were picked up in May-June to keep the new shoots robust for ear harvesting. Cutting in July, planting at the beginning of August, picking the heart from August to September, and flowering on New Year's Day. During July-August, the high temperature period should be properly shaded. After September, artificial light should be added to 14 hours per day. In October, the temperature should be lowered. The temperature should not be lower than 8°C at night, and the air temperature should be higher than 25°C during the night. Change air.

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