High-yield and good-quality cultivation techniques of "Sorbonne" Lily

"Sorbonne" lily, which originated in Holland, is a cut flower variety of oriental lily hybrid line. The plant height of this variety is 80cm to 120cm, the stem is hard, the leaves are lanceolate, bright green and glossy, the flowers are pink, the edges are narrow and white, and the red papillae are distributed below the middle of the petals. The suitable growth temperature of "Sorbonne" lily is between 18 and 25 ℃. The growth of lily below 5 ℃ and above 28 ℃ is affected to a certain extent. If the temperature exceeds 30 ℃, the phenomenon of "blind flower" will appear.

1 choose a good seed ball

Choose the ball according to different consumption requirements and time to market. In early spring and early summer, bulbs with circumference of 10~12cm were selected to reduce the occurrence of leaf scorch disease, and bulbs with circumference of 16~18cm should be selected before and after the Spring Festival to improve the quality of flowers.

2. Land preparation and planting

2.1 select the loose, well drained and fertile sandy loam soil that has not been planted in the previous crop, such as Liliaceae and Amaryllidaceae. If the soil fertility is too low, rotten sesame residue (400kg per mu) can be applied as base fertilizer when ploughing and turning the sun-white land. Half a month before planting, the border was 1-1.2 m wide and 25-30 cm high. A planting ditch with a depth of 20cm was dug horizontally on the border surface, and a culture medium was applied in the ditch (4 parts of mushroom soil, 2 parts of coconut bran and 4 parts of sand were fully composted). Then the soil was disinfected with 1000 times of 70% dimethazone wettable powder in the whole garden.

2.2 before planting, the seed bulb 10cm was covered with a sterilized and moist substrate (coconut bran mixed river sand 3 ∶ 1) and placed indoors for about 10 days. When there is an obvious root point at the base of the bulb bud, it can be transplanted to the field for planting. It can be achieved by accelerating germination: ① forming good root system and neat and robust buds are beneficial to field management; ② reduces the transmission of field diseases; ③ shortens the time of field cultivation and harvest about 5 days earlier than that of non-budding.

2.3 planting in the planting ditch where the culture medium has been put, the seed bulb is placed according to the distance from the plant, and the top of the seed ball is covered with soil 8~10cm. According to the plant row spacing of 12cm × 15cm in spring, the seed bulb of 10~12cm per mu is about 18000, and in autumn, the plant row spacing of 10cm × 15cm is about 25000 16~18cm per mu. Plant and pour water at the same time.

3. Field management

3.1 during the whole growing period, the water management lily requires the topsoil to remain moist (to hold the topsoil by hand without dripping) rather than accumulating water. When the garden soil becomes white and the leaves droop slightly, it should be watered in time, and the watering time should be before 10:00 every morning, and watering in the evening should be avoided. "Sorbonne" lilies enter the flower bud differentiation stage about a month after planting, during which water should be properly controlled until buds appear.

3.2 fertilizing and managing the application of water and fertilizer, so as to apply frequently and thinly. Nitrogen fertilizer was the main fertilizer in the early stage, potassium fertilizer and trace elements were applied after bud emergence, and attention was paid to fertilization in flower bud differentiation stage and flower bud expansion stage. Generally, the stem begins to take root after planting for about 10 days, and 0.8%-1% ammonium sulfate nitrate solution (lily is sensitive to chlorine and fluorine, potassium chloride, calcium superphosphate and other fertilizers) can be used for topdressing every 3-5 days. In the flower bud stage, 0.2% potassium dihydrogen phosphate or 1000 times liquid potassium amino acid can be added for foliar topdressing. When the bud grows to 1~2cm, spray water 15kg with 20% Qibao 1g foliar spray.

In order to prevent lodging and ensure the quality of cut flowers, 3.3 net protection flowers began to draw net and fix flowers when the seedling height was 20 ~ 30 cm. If you plant in autumn, you should pull a two-layer net to fix the flowers.

3.4 Light and temperature management shade with a shading rate of 70%-75% during the elongation period of the stem to promote the elongation of the stem. After budding, remove the sunshade net to make the bud coloring well, the leaf stalk solid and prevent the bud from disappearing. Before Cold Dew and frost come, cover it with film in time to prevent cold injury.

3.5 Diseases and insect pests control mainly include Botrytis cinerea, root rot, leaf burn, aphids and mites. The prevention and control of the disease should be based on the principle of prevention and control. on the basis of disinfection of soil and seed balls, the disease should be prevented and treated with 1000 times of 65% Haosheng wettable powder or 1000 times of 10% high wettable powder at the initial stage of Botrytis cinerea; water control should be done carefully from flower bud differentiation to bud stage to prevent the occurrence of leaf burn disease; when discovering diseased plants of root rot disease, they should be pulled out and burned in time, and then 50% lime milk should be used for soil disinfection. Aphids can be treated with 1000 times of imidacloprid or 2000 times of fenvalerate. The control of mites can soak the bulb bulb with 1000 times of dicofol for 2 minutes before planting, and the bulb can be sprayed with 1000 times of dicofol or 50% fenitrothion EC during the growing period.

4 timely harvest

It is generally harvested when the first bud at the base is fully expanded and colored, and if there are more than 10 buds, it can only be harvested when there are 2 or 3 buds colored. Harvesting should be carried out before 10:00, bundled in stages, and the base was cut and inserted into 500-fold liquid chlorothalonil precooled water (water temperature 2: 5 ℃) for preservation.