How to raise potted plants every day and spring?

Day by day and spring, they are called Catharanthus roseus, daily grass, alum and so on. They are perennial herbs of the family Apocynaceae. They have long flowering period, beautiful colors and graceful gestures. The flowers cultivated in recent years are also getting bigger and bigger. It is very appropriate to be a bonsai ornamental plant. It has unexpected effects in home layout. Let's take a look at how to raise potted plants every day and spring.

The growth habits of every day and spring

It originates from Mediterranean coast, India and tropical America every day and spring. The cultivation history in China is not long. It is mainly cultivated in the south of the Yangtze River, and is more common in Guangdong, Guangxi, Yunnan and other places. The most suitable temperature is 20: 33 ℃, like sunshine, avoid dampness and fear waterlogging, general soil can be cultivated, but saline-alkali soil is not suitable, sandy or humus-rich soil with good drainage, ventilation and ventilation is better, flowering and fruiting period is almost all year round.

The method of reproduction every day and spring

1. Sowing: sowing is often used every day and spring, usually sowing around early spring and April. There are 750 seeds per gram per day and spring, and the optimum temperature for germination is 18-24 ℃. The mixed soil of rotten leaf soil, culture soil and fine sand was disinfected by sowing Pansheng, and germinated 14-21 days after sowing. After emergence, shade should be added for 2-3 hours at noon when the light is strong and the temperature is high. When the seedling is 5 cm tall and has 3 pairs of true leaves, it can be potted and planted when there are 6-8 pairs of true leaves.

2. Cutting: cut the twigs on the overwintering old plants in spring or early summer, with a length of 8 cm and 10 cm, with some leaves, cut off the lower leaves, leave the top 2-3 pairs of leaves, insert them into the sand bed or rotten leaf soil, keep the soil slightly moist, room temperature 20-24 ℃, pay attention to shade and maintain humidity, rooting 15-20 days after cutting, and when the seedling is 10 cm high, hit the top to promote the growth, then go up to three-inch pots and gradually turn to seven-inch pots.

3. Tissue culture: the stem tip was used as explant, the sterilized stem tip was cut into several segments, each segment was 0.4cm to 0.6cm, and inoculated in MS medium supplemented with 6-benzylaminoadenine 5mg / L and naphthylacetic acid 0.2mg / L, adventitious buds were cultured for one month. Then transferred to 1/2MS medium supplemented with kinetin 0.2mg / L and indole acetic acid 2mg / L, white roots began to grow after half a month and became complete plants.

How to raise potted plants every day and spring?

1, soil: every day and spring should be fertile and well-drained soil, resistant to barren soil, but do not be alkaline. Clayey soil with hardening and poor ventilation results in poor growth of plants, yellowing leaves and no flowering.

2. Sunshine: every day and spring are light-loving plants. During the growing period, there must be sufficient sunshine, green leaves and bright flowers. If you grow in the shade for a long time, the leaves will turn yellow and fall.

Temperature: warm, slightly dry and sunny environment every day and spring. The suitable temperature for growth is 18: 24 ℃ from March to July, 13: 18 ℃ from September to March of the following year, and the winter temperature is not lower than 10 ℃.

4. Watering: avoid dampness and fear waterlogging every day and spring, basin soil watering should not be too much, too wet affects growth and development. In particular, indoor winter plants should be strictly controlled watering, it is better to dry, otherwise it is easy to freeze. Open field cultivation, midsummer showers, pay attention to timely drainage, so as not to cause the whole area to die by waterlogging.

5. Fertilization: compound fertilizer and liquid fertilizer can be applied alternately every ten days, and the bottom of basin soil should be covered with a layer of base fertilizer as far as possible to ensure the nutrient content of basin soil.

6. Pruning: every day and spring are herbaceous plants, which are more suitable for potted plants, but we should be careful not to let the plants grow too high, affecting indoor decoration and ornament, so after surviving in the pot, we have to pick the heart several times to promote multiple branches and blossoms, and the residual flowers must be cut off after flowering.

7. Insect pests: the plants are poisonous every day and spring, so they are more resistant to diseases and insect pests. The main diseases in seedling stage are: seedling quenching disease, Botrytis cinerea and so on. In addition, it is necessary to prevent the occurrence of fertilizer damage and drug damage in seedling stage. If it happens, it should be watered with clean water immediately to strengthen ventilation and reduce the harm.