Cultivation techniques of bonsai cut flowers of calla lotus

Although colored calla lilies are often used for cut flowers because of their beautiful flowers, potted colored calla lilies also attract a large number of people. Colorful calla lilies have white, yellow, pink, orange, green, purple and other colors, rich in colors, in the flower market, its sales have been optimistic. In recent years, the color calla lily market has attracted many new producers to try out, but because the production technology is not mature, there are not many enterprises that can produce more after trial planting, and the technical problems hinder the realization of regional production. The following focuses on the cultivation techniques of bonsai cut flowers of calla lotus:

1. Selection and treatment of seeding balls.

(1) selection of bulbs: bulbs used in the production of cut flowers should be strong and disease-free, bright in color and full in bud eyes. The size of the bulb should be about 3-5 cm in diameter, and the bulb is too small to blossom or not.

(2) Variety selection: the varieties with strong disease resistance, bright flower color, insensitive to light, high cut flower yield and high percentage in the market should be selected.

(3) pre-planting treatment: the seed bulb of colored calla could be treated with gibberellin to promote flowering. Increase the yield of cut flowers. Generally, before planting, the gibberellin solution with a concentration of 25-50 mg / kg is used to soak for 10-15 minutes, which is too long and the concentration is too high, which can easily cause abnormal flowers.

2. Selection of cultivation environment.

Colorful calla lilies like warm, moist and shady environment and are not resistant to cold. The suitable temperature during the growing period is 15 ℃ / 24 ℃ during the day and no less than 12 ℃ at night. The high temperature above 30 min is easy to cause the prevalence of soft rot. The cultivation environment should be well ventilated and moderately shaded, and the cultivation land should choose sandy soil with higher topography, better drainage conditions, rich organic matter and pH value about 7, and apply nitrogen, phosphorus, potassium and a large number of mature organic fertilizers.

3. Planting bulbs

(1) planting time should be determined according to the needs of cut flowers and bulbs. However, the quality and yield of cut flowers of colored calla planted in spring are the highest, and for promoting and delayed cultivation, attention should be paid to the flowering treatment of bulbs and the effective control of cultivation environment in order to make a profit. Sprouting is carried out before sowing, and new buds are germinated before planting.

(2) planting depth: generally 3-4 cm bulb planting depth is 10 cm, for more than 5 cm bulb, the depth is 15 cm. Watering enough water after planting and covering the ground with wheat straw to increase humidity and reduce soil temperature, promote seed bulb germination and rooting.

4. Water and fertilizer management

The water management of colored calla lilies is very important in the growing period, and it is generally appropriate to be wet at the initial stage of growth. The amount of water should be properly controlled in the later stage of flowering, and the bulb should be enriched and forced to dormancy in a dry environment after anthesis. In the case of adequate base fertilizer, as long as the appropriate topdressing. Tongdang used 1000 times calcium nitrate and foliar fertilizer twice before flowering, with an interval of 7 days, in order to promote flowering, and compound fertilizer should be applied after flowering to promote seed bulb fullness and maturity.

5. Harvest and postharvest treatment of cut flowers

It takes about 70 days for colored calla lilies from sowing to flowering. Flowers should be picked in the morning or evening when the temperature is low, using the method of selection, for varieties with longer flower branches, cut flowers can also be used. After picking flowers, 1000 times of agricultural streptomycin can be sprayed, sterilized and disinfected. When cutting flowers, we should pay attention to the disinfection of cutting tools to avoid virus transmission between different plants.

6. Harvest and storage of seed balls.

The colored calla lily is a perennial bulb flower. After the cut flower is harvested, the bulb can be used next year. The best time to harvest the bulb is after the leaves on the ground are withered and yellow. First, dig the bulb out of the soil and clean the soil. Do not force the root to peel off and let it fall off naturally and put it in a ventilated place. When there are conditions, the dried bulbs should be disinfected and stored in cold storage. The suitable temperature is 8 ℃, and the seeds can be sown after 3 months. During the storage period, sulfur should be fumigated in cold storage every week to reduce the occurrence of diseases.

Time: 2019-05-25 Click: