How to raise poinsettia, the breeding method and precautions / watering of poinsettia is very important.

Poinsettia, as its name suggests, has very bright leaves and a red color that looks very conspicuous, so it is loved by flower friends. In the selection of culture, many people will choose poinsettia, poinsettia how to raise it? Soil, light, etc. are essential, but watering is also critical. The following are poinsettia breeding methods and precautions, very comprehensive, friends who want to raise must see oh ~

How to raise poinsettia, fertilization is very important

Because indoor farming, certainly not as good as the outside conditions, so to raise poinsettia, we need to do a lot of things. Soil, light, watering, etc., are essential, in addition to temperature and fertilization are also required to pay attention to. As for more specific, in poinsettia breeding methods and precautions have been introduced, we continue to look down.

II. Cultivation methods and precautions of poinsettia

1, soil, loose drainage is good

Poinsettia how to raise, first have to choose the soil, the requirements are clean loose, can not have odor. Secondly, drainage is good, containing a small amount of soluble salt, containing essential elements to meet the growth of poinsettia. Flower friends can choose 3 parts of vegetable garden soil, 3 parts of humus soil, 3 parts of rotten leaf soil, 1 part of decomposed cake fertilizer, and a small amount of slag mixed into a sudden.

Note: If you dig directly from the community garden, make sure there are no impurities. The soil is usually peat soil, pearlite, vermiculite, ceramsite, sawdust mixture, before planting the soil spread flat, in the sun exposure for 30 minutes.

Light, less than 12 hours

Poinsettia is a short-day plant, and flower buds begin to differentiate only within 12 hours of light per day. The flower bud differentiation period is from early October to early March of the next year, during which a longer dark time is required, preferably 15 hours. In addition, normal maintenance, summer noon appropriate shade can be.

Note: flower bud differentiation period is very sensitive to red light, short time or very weak red light can also affect flower bud differentiation, so in flower bud differentiation period should prevent light irradiation. Moonlight contains very little red light, does not affect flower bud differentiation. 100W incandescent lamp is used to add light for 2 hours every day, flower bud differentiation is not carried out in short sunshine season in winter, but vegetative growth is continued.

3, watering, see dry see wet

In poinsettia breeding methods, watering is extremely critical, because poinsettia sensitive to moisture, uneven watering, partial dry or partial wet will cause adverse reactions. Too much watering, leaves droop and even rot roots; insufficient watering, leaves will curl. So poinsettia watering, is very particular about.

Note: poinsettia watering to see dry see wet, early growth, plants are not big, watering to be less; summer temperature is high, poinsettia growth exuberant, watering more, watering once a day in the morning and evening, and according to weather conditions, spray water to the ground. Spring and autumn season 1-2 days can be watered once.

4, temperature, 16~27℃

Poinsettias like warm environment, except winter, other seasons can see poinsettias bonsai. And every September when the weather begins to get cold, it is necessary to put poinsettia completely indoors, at this time to ensure that the indoor temperature is about 15 degrees to 20 degrees, if higher or lower than this temperature will make poinsettia growth threatened.

Note: Poinsettia growth optimum night temperature 16~21℃, day temperature 21~27℃, temperature below 16℃, slow growth, 13℃ growth stagnation. The optimum temperature for flower bud differentiation was 16~ 21 ℃. The development speed slowed down when the temperature exceeded 21 ℃. The temperature maintained at 15~17℃ in the later stage of growth was beneficial to the development and color transformation of bracts. The flower bud differentiation could be delayed by the treatment of night temperature of 25℃.

5. Fertilization, once every 7-10 days

Poinsettia like fertilizer, growth period 7-10 fertilization once, nitrogen, phosphorus and potassium compound fertilizer can be selected. After August until flowering, 7-10 days to apply nitrogen and phosphorus liquid fertilizer, close to flowering when the application of phosphorus, can ensure that the flowers are large and beautiful.

Note: each fertilization can not be too thick, more can not apply raw fertilizer, the next morning after the application of 1 irrigation solution. In winter low light period, generally in early November to before sale, fertilization frequency and concentration are halved.

6. Proper pruning

Proper pruning is also important in poinsettia farming methods. Want a pot of good poinsettia must be trimmed plastic, can be in the branch length of 20 to 30 cm when the beginning of plastic composition, the purpose of this is to make the plant shape short, flower head clean, evenly distributed, improve appreciation.

Second, poinsettia breeding precautions

Although in the above poinsettia breeding method, there have been a lot of precautions, but want to raise smooth sailing, need to pay attention to many places. In general, poinsettia breeding precautions have the following three points:

Watering: The key to raising poinsettia is watering, as long as it is not sudden bad weather, the outdoor environment can fully meet the growth needs of poinsettia. However, improper watering will affect the growth and development of plants and ensure that the pot soil is wet but not dry.

2. Light: poinsettia is a light-loving flower, which grows strongly under strong light. In addition to shade and cooling in midsummer, it should be fully illuminated in other seasons. Even in summer, shading causes stems to elongate and leaves to enlarge.

How to raise poinsettia, poinsettia cultivation methods and precautions

Poinsettia flower color is particularly bright red, people look very happy, many friends want to plant a pot very early, but do not know how to raise poinsettia, today Xiaobian good for everyone to introduce poinsettia breeding methods and precautions.

How does poinsettia grow?

Poinsettia likes warm, humid and ventilated environments, and is not resistant to low temperatures. Too strong direct sunlight or insufficient light may affect its growth and cause the above symptoms. During the growth period to do a good job of fertilization management, coring and other conservation work.

Poinsettia breeding methods and precautions

1, propagation: mainly cuttage, it is appropriate to choose older annual branches between February and March, cut 8~12 cm to do cuttings. In order to avoid toxic milk outflow, should immediately immersed in clean water, after drying and then inserted into well-drained soil or coarse sand, soil surface to leave 2~3 buds, and keep wet and shade.

2. Soil: Poinsettia likes loose and well-drained soil. Generally, 3 parts of vegetable garden soil, 3 parts of humus soil, 3 parts of rotten leaf soil, 1 part of decomposed cake fertilizer, and a small amount of slag are mixed for use.

3, temperature, light: every year in late September should be moved into indoor planting, winter temperature should be maintained at 15~20℃, after mid-December into flowering should pay attention to ventilation. Poinsettia love light, is a short-day plants, all year round should be given adequate light, 8 to 9 hours a day the best.

4. Fertilization: poinsettia likes fertile sandy soil. Now in autumn, 0.3% compound fertilizer can be used, applied once a week, 3 to 4 times in a row, to promote bract discoloration and flower bud differentiation.

5, watering: according to the weather, pot soil and plant growth conditions flexible control, general watering to keep the pot soil moist and not water for the degree, but after flowering to reduce watering.

6, pruning: mainly pruning some old roots, weak branches, general pruning time is late June, mid-August. In the cultivation should control large fertilizer and water, especially in autumn before the plant stereotypes. When the branches are 20 to 30 cm long, they begin to shape and bend, aiming to make the plant shape short, the flower heads neat and evenly distributed, and improve the ornamental property.

The above is poinsettia breeding methods and precautions, now we know how to raise poinsettia bar, then hurry up!

How to raise poinsettia? Poinsettia breeding methods and precautions

Figure: Poinsettia

How to raise poinsettia? Poinsettia breeding methods and precautions

[Expert Answer]

1. Preparation of culture soil

Poinsettia likes loose, well-drained soil, generally with vegetable garden soil 3, humus soil 3, decomposed cake fertilizer 1, plus a small amount of slag mixed use.

2. Temperature

Poinsettias love warmth and fear cold. Every year in the middle and late September into the indoor, to strengthen ventilation, so that plants gradually adapt to the indoor environment, winter room temperature should be maintained at 15℃ to 20℃. At this time, bract discoloration and flower bud differentiation stage, if the room temperature is lower than 15℃, flower and leaf development is poor. After entering the flowering stage in mid-December, it should be gradually ventilated.

3. Light

Poinsettia like sufficient light, to the light of strong, is a short-day plants. All seasons should be sufficient light, bract discoloration and flower bud differentiation, flowering period is more important. If the light is insufficient, the branches are easy to grow, susceptible to diseases, the color is dim, and it is placed in a dark place for a long time, it will not bloom and will fall leaves in winter. In order to advance or delay flowering, light can be controlled, generally 8 to 9 hours of light per day, 40 days can flower.

4. Fertilization

Poinsettia loves fertile sandy soil. In addition to adding organic fertilizer and horseshoe slices as base fertilizer when putting on pots and changing pots, the liquid fertilizer diluted 5 times and fully decomposed sesame sauce residue is applied once every 10 to 15 days during the growth and flowering season. After autumn, 0 is still available. 3% compound fertilizer, applied once a week, 3 to 4 times in a row to promote bract discoloration and flower bud differentiation.

5, watering

According to the weather, pot soil and plant growth flexible master, general watering to keep pot soil moist and not ponding for the degree, but after flowering to reduce watering.

6, pruning

Mainly prune some old roots, weak branches, general pruning time is late June, mid-August. In the cultivation should control large fertilizer and water, especially in autumn before the plant stereotypes. When the branches are 20 to 30 cm long, they begin to shape and bend, aiming to make the plant shape short, the flower heads neat and evenly distributed, and improve the ornamental property.

7, pest control

The most common is whitefly, which can be sprayed or irrigated with pesticides. Using the phototaxis of whitefly, yellow sticky insect plates coated with oil can be placed in the greenhouse to trap it. Also note that whiteflies generally suck sap on the back of young leaves, and light-colored leaves are more likely to cause whitefly damage.

Poinsettia has many effects. It can be used as food and wine as well as medicine. However, it has certain toxicity. What needs attention is its usage. The above is the "poinsettia breeding methods and precautions" compiled by the first agricultural economics editor for you. I hope to help you. For more relevant information, please pay attention to the relevant columns and articles of the first agricultural economics. Thank you for your attention and support!