Seed price and planting method of Begonia bulb

The flower of Begonia is a plant of the genus Begonia of the family Begonia. It is large and many, colorful and graceful, and has the appearance, color and fragrance of famous flowers such as camellia, peony and rose, so it is known as the crown of begonia. There are three propagation methods: sowing propagation, tuber propagation and cutting propagation, but they are mainly sowing and propagation in production. Let's take a look at the seed price and planting method of Begonia.

How much is the seed of Begonia bulb?

The price of begonia bulb seeds is very cheap, usually about 3-5 yuan per gram, there are hundreds of seeds in one gram. Begonia bulb is a horticultural hybrid of some wild begonia native to South America, Asia, Central America and South Africa, and is now cultivated all over the world. Prefer warm, humid and semi-shady environment, the suitable temperature for growth is 16: 21 ℃, not resistant to high temperature, more than 32 ℃ is easy to cause stem and leaf withering and flower bud shedding, underground tubers rot and die above 35 ℃, and the suitable storage temperature for tubers is 5: 10 ℃.

Sowing method of Begonia bulbosa

1. Sowing method: Begonia bulbosa can be sowed with 200-hole hole plate or 288-hole hole plate, and the seedling soil is planted with imported peat and 10% of 3-5 mm large-grained perlite. The seedling period is about 10 to 12 weeks. Do not cover the seeds in the seedling process.

2. Seedling raising stage

The temperature of the first stage of ① is 22 ℃ to 24 ℃, which takes 7 to 10 days, the medium should be kept moist, and full light is required at this stage.

The temperature of the second stage of ② is from 21 ℃ to 22 ℃, fertilizing once a week, and different proportions of N, P and K are used alternately for about 14 to 21 days.

The temperature of the third stage of ③ is 20 ℃, and the concentration of fertilizer is from 100ppm to 150ppm. It takes 35 to 42 days to apply fertilizer twice a week.

The temperature of the fourth stage of ④ is from 15 ℃ to 17 ℃, which takes 7 days, and the fertilization concentration is the same as that of the third stage.

3. Seedling management: during the period of seedling cultivation, the pH value of water is 5.5 to 6.5, and the pH value of substrate is 5.8 to 6.2. At the same time, disease and pest control should be carried out. Cotyledons were sprayed with 1000 times chlorothalonil or methyl topiramate 2 to 3 times a week after emergence.

Planting method of Begonia bulbosa

The main results are as follows: 1. Soil: peat cultivation is beneficial to the growth of tuber. the pH value of the medium is slightly acidic from 5.5 to 6.2. peat soil: perlite: vermiculite is used at 3:1:1.

2. Temperature: the suitable temperature for the growth of Malus bulbifera is from 16 ℃ to 25 ℃, but not less than 10 ℃ in winter and 28 ℃ in summer.

3. Light: Begonia bulb can promote flowering under the condition of long day, but dormancy early under the condition of short day. Sunshade net is needed in summer, otherwise it is easy to cause disease epidemic.

4. Humidity: begonia bulb is relatively wet, and it is extremely beneficial to growth in a moist ecological environment. During the whole growing period, the air humidity can be controlled at 60% to 80%.

5, fertilizer and water: the N:P:K ratio in the growing period of Begonia bulb is 1:1:1, the florescence is 1:2:2, the fertilizer concentration is 0.1-0.2%, usually fertilizing once every 3 to 4 days, and the EC value from small seedling to big seedling should gradually increase from 1.0 to 1.6.

6. Diseases and insect pests

① stem rot and root rot can be irrigated with 1000 times of carbendazim wettable powder or 1000 times of carbendazim.

② scale can be sprayed with 40% omethoate EC 1000 times.

③ leaf roll moth can be sprayed with 2000 times of 10% pyrethrum EC and fish rattan essence.

④ thrips can be sprayed with 4000 times potassium permanganate.