The culture method of Zhu Dinghong:

1. Soil:

The planting soil of red vermilion requires loose and fertile sandy loam, pH 5.5~6.5, avoid ponding, pot soil can be mixed evenly with 2 parts of decomposed manure soil, 6 parts of decayed leaf soil and 2 parts of sandy soil.

2. Watering:

Amaranthus needs to be kept moist and watered thoroughly. But avoid excessive water, poor drainage. General indoor air humidity can be.

3. Sunlight:

Red like sunlight, can be the right amount of direct sunlight, not too long. It should be placed in front of a window with bright light, good ventilation and no direct glare.

4. Temperature:

Red is warm and cold resistant. Summer should be cool, the temperature of 18-22℃ is appropriate, winter dormancy requires a cool and dry environment, the temperature should not be lower than 5℃.

5. Fertilization:

Red like fertilizer, to grow to 5-6 cm long leaves began to apply topdressing, generally every half month to apply decomposed cake fertilizer water, after flowering to apply once every 20 days or so, to promote bulb growth and produce new bulbs.

The cultivation method of red.

Amaranthus amblycephala blooms in April in spring and again in winter. Management should be strengthened as early as possible to promote flowering. Fast growth, after 1 year of growth, should be replaced with adaptive flowerpots. Red pot soil after 1 or 2 years of planting, pot soil fertilizer shortage, in order to promote the growth and flowering of the new year, should be replaced with new soil. it grow fast. after one or two year of growth, there are many bulbs growing on that head. therefore, the plant are divided at the same time of changing pots and soil, and the large plants are mixed into one pot, the medium plants are mixed into one pot, and the small plants are mixed into one pot. Base fertilizer should be applied at the same time of pot change, soil change and planting. Phosphorus and potassium fertilizer should be applied once a month after pot application. The principle of fertilization is to apply thin fertilizer frequently to promote flower bud differentiation and flowering. Amaranthus amblycephala grows vigorously and blooms early, so pest control should be carried out. Anther spraying should be carried out once a month. Spray flower medicine should be carried out at 9:00 a.m. and 4:00 p.m. on sunny days. It is not suitable to spray in the hot sun at noon to prevent phytotoxicity.

Red like warm, humid climate, suitable temperature for growth of about 23℃, avoid extreme heat, sunlight should not be too strong, should be placed under the shade shed maintenance. Afraid of flooding. Winter dormancy period requires a cool climate, preferably 11 ° C, not lower than 5 ° C. Like rich humus, good drainage of sandy loam. Artificial ball cutting method is adopted to breed seed balls in large quantities. That is, sowing, sub-ball, cutting bulbs, tissue culture and other methods of breeding.

The cultivation method of red.

The cultivation method of amaryllis is better than clivia, which is very suitable for family cultivation. The following family cultivation methods of amaryllis are introduced as follows: amaryllis morphological characteristics: perennial bulbs. Bulb diameter up to 6cm-10cm, scale color and flower color related, brown scale for red flowers, light green scale, its flowers have white or red stripes. Roots are attached to the underside of the bulb, leaves are attached to the bulb in two rows, 3 - 4 on each side, flat light green. The flower stems are also extracted from the bulbs, green and stout, hollow. Umbel bearing flower stem tip, trumpet-shaped, red, red with white stripes, white with red stripes, etc., often 2 - 6 flowers relatively open.

It likes semi-shade, not cold-resistant, suitable temperature for growth is 18℃-25℃, and suitable temperature for winter dormancy period is 5℃-10℃. Like wet, afraid of waterlogging, like loose soil rich in organic matter, good drainage. He likes fertilizer, but after flowering, he should reduce nitrogen fertilizer and increase phosphorus and potassium fertilizer to promote bulbous hypertrophy.

The main species and varieties are also solitary flower, Wang Baizhi lotus, Huazhou orchid, reticulated Baizhi lotus and hybrid Baizhi lotus. There are many varieties of horticulture.

Breeding points: sub-ball and seed reproduction can be. The bulblet is removed from the bulblet surrounding the mother bulb and propagated between March and April. When taking the ball, avoid damaging the root of the ball, potted or planted, and expose the top of the bulb to the soil surface when covering the soil. Cold areas should be dug out in late October, the diameter of more than 6cm-7cm bulbs can be planted in pots to wait for flowering, small bulbs should be stored in dry sand, re-planted in April next year, generally after 2 years of planting, can form flowering bulbs. In addition, it can also be divided into scale cuttings in July and August to obtain a large number of seed balls. The optimum temperature of cuttings is 27℃-30℃, keep moist, after 6 weeks can produce pellets and root. Planting should not be deep, too deep causes neck growth slender; shallow ground temperature is high, root group grows exuberantly. It is planted in March and April and can bloom in May and June. Full irrigation at flowering stage, additional topdressing after flowering, suitable for semi-shade in midsummer, gradually stop growth after August, water content will be reduced to stop watering, keep dry in winter, and maintain 10℃-13℃, promote its full dormancy.

A brief history of cultivation and flower culture: Originated in tropical and subtropical regions, such as the Andes Mountains of Peru, the Cape of Good Hope of South Africa, and Brazil in South America, it was introduced into Europe in 1633 and 1769. The Dutch studied the flowering of amaryllis and bred plants that bloomed at Christmas and New Year's Day, making this beautiful amaryllis bloom according to people's needs. In addition to being used as potted plants, amaryllis is also a high-grade cut flower. Because of its long flowering period, it is loved by people and often becomes the material of painters.

Red Spring Management

Amaranthus amaryllis blooms in April in spring and again in winter. Management should be strengthened as early as possible to promote flowering.

1. Change pots. Red rose grows fast, after 1 year of growth, should be replaced with suitable flowerpots.

2. Change the soil. Red pot soil after 1 or 2 years of planting, pot soil fertilizer shortage, in order to promote the growth and flowering of the new year, should be replaced with new soil.

3. ramet. Red rose grows fast, after 1 or 2 years of growth, the head grows a lot of small bulbs, so in the pot, soil change at the same time for plant division, the big plant for a pot, medium plant for a pot, small plant for a pot.

4. Fertilization. The base fertilizer should be applied at the same time of pot change, soil change and planting. After pot application, phosphorus and potassium fertilizer should be applied once a month. The principle of fertilization is to apply thin and frequent fertilizer to promote flower bud differentiation and flowering.

5. Trim. Red rose grows fast, leaves long and dense, should be in the pot, soil change at the same time to lose leaves, dead roots, diseases and insect pests roots and leaves cut off, leaving vigorous leaves.

6. Control of pests and diseases. In order to make amaryllis grow vigorously and bloom early, pest control should be carried out. Anther spraying should be carried out once a month. Spray medicine should be carried out at about 9 a.m. and 4 p.m. on sunny days. It is not suitable to spray at noon to prevent phytotoxicity.

The above six points are the work that should be paid attention to in the spring management of Zhu Dinghong.

Red breeding methods:

Amberlite is a perennial herb, bulb spherical, ball diameter between 10 and 15 cm. The leaves are arranged neatly in sword shape, with clear veins and green luster. Flowers are mainly red, yellow, pink, green, orange, compound color and other colors, flowering 10 to 20 days. Because of its strong ornamental value, it is widely cultivated all over the world. Breeding amaryllis can be used seeding, ball and tissue culture methods, the following are several commonly used.

A, newspaper seeding method amaryllis bloom after artificial pollination after more than a month of fruit naturally split, you can harvest seeds. Sow seeds after a day or two in the sun. Draw a square of 3 cm in length and width on the newspaper, then put it on the seedbed (the sun should not be directly exposed), spray water, put a seed in each compartment, and then cover it with a wet newspaper. Water was sprayed twice a day to keep the newspaper dry, and seedlings grew from the seeds under the newspaper in about 15 days (temperature 18 ° C to 24 ° C). When the seedlings grow two true leaves, they are divided into large plates, the matrix is vermiculite and peat soil, and nutrient solution is poured. When the seedlings grow 6 to 7 leaves, they can be cultivated in the field.

Second, the shallow pot seeding method is sifted with culture soil and vermiculite and placed in a shallow

3 cm away from the mouth of the pot, and then water. After the soil is wet, sow the seeds 3×3 cm on the soil surface and cover them with sifted soil, not too thick. After sowing, cover the shallow opening with glass and place in a dark place at a temperature of 18 ° C to 24 ° C and a humidity of 80 to 90%. After about 10 days, seeds begin to germinate. You can slowly adjust the gaps in the glass until they are all open. When seedlings grow three or four leaves, they can be potted or planted.

Third, the sub-ball propagation method is generally combined with the red for the pot to break down the excess sub-ball, direct potted or planted.

This method is simple and easy to operate, and the survival rate is high. If the small ball is more than 5 cm, it can bloom that year. Smaller bulbs bloom in about two years.

IV. Tissue culture propagation method is generally used

MS medium, stem disk, dormant bulb, pedicel and ovary as explants. Callus was produced after tissue culture, adventitious roots were formed after 30 days, and adventitious buds were formed after 3 to 4 months. When the leaves grow to 4 cm, they are separated, and after 2 months, the seedlings can be placed in the greenhouse for management.

Question: My friend sent me this red amaryllis ~ I like it very much ~ but raised for 2 years the ball is not small ~ colleagues say that the flowering ~ but it does not bloom ~ I regularly fertilize watering, what is going on?

Answer:

I guess it's just too much care. A little dry in autumn and winter would be better.

This stuff is very easy to raise,Φ more than 5cm annual flowering, usually let it dry a little, to autumn 7~10 days irrigation fertilizer, try to make it long. Grow up, cut off leaves into winter, and let it hibernate. The next spring, turn over the pot and apply enough base fertilizer to bloom beautiful flowers. My family will bloom again in October.

I guess it is caused by more nitrogen fertilizer and less phosphorus and potassium fertilizer. In addition, it is time to change the soil and divide the pots after two years of cultivation.

The natural flowering period of this flower is April to May, so let's just let it pass. However, it is also possible to start dressing nitrogen, phosphorus and potassium compound fertilizers in mid-June, and then apply phosphorus fertilizer every 10 days or so except for normal watering. By late July, there is still a chance for amaryllis to bloom.

The key to flowering is winter management. After winter, stop watering and let it enter dormancy. If winter fertilization and watering will cause excessive growth, flower bulbs can not conceive, can not bloom, in short, the less winter leaves the better.

Winter to let it fully dormant, the leaves are cut off, wait until the spring watering a permeable, let it wake up