How to cultivate Begonia bulbosa Culture methods and points for attention

Begonia bulb is a kind of begonia, which is distributed in many parts of our country at present. The ornamental quality of Begonia bulb is very high, and it is a very popular variety on the market at present. Many people like to buy it and raise it at home. However, if you want it to grow well, understanding its breeding skills is a very critical step.

How to raise Begonia bulbosa

1. Begonia bulb illumination: controlled at 20000 to 35000 lux. Although the light is strong, the temperature should not be too high, and sunshade nets should be used in summer, otherwise it is easy to cause disease epidemic.

2. Air humidity of Begonia bulb: the air humidity should be controlled at 60% to 80% during the whole growing period.

3. Fertilizer and water of Malus bulbifera: the ratio of N:P:K in growing stage and N:P:K in flowering stage were 1 and 1, respectively, and those in flowering stage were 1:2:2. Fertilizer concentrations can range from 0.1% to 0.2%, usually once every 3 to 4 days. From small seedlings to large seedlings, the EC value should gradually increase from 1.0 to 1.6.

4. The matrix ratio of Begonia bulbosa: peat soil, perlite and vermiculite is 3:1:1.

Culture method of Begonia bulbosa

1. Soil. Culture bulbous begonia, the soil needs to be fertile, loose and breathable, rich in humus, can show acidity. Generally can use garden soil plus river sand, rotten leaf soil configuration, in order to increase fertility, you can add some base fertilizer.

2. Light and temperature. Begonia bulb likes a warm growing environment, semi-overcast is better, and it is more afraid of the heat of summer. The suitable temperature for growth is between 16 ℃ and 21 ℃, and it is not resistant to cold. Basically, if the temperature is more than 30 ℃, it is possible to wither the stems and leaves, and in severe cases, it will lead to the death of underground stems. It is also necessary to maintain a certain temperature in winter, and the overwintering temperature had better not be lower than 10 ℃. Begonia bulb needs to blossom well under long sunshine, and it needs to maintain sufficient light in summer, but we should pay attention to the lack of strong light in summer and shade in time, and the sunshine time in winter is short, so we need to ensure sufficient light.

3. Watering and fertilizing. Begonia bulb likes water and fertilizer, the growth environment requires moist, but there is no stagnant water, because it is afraid of waterlogging. Less watering is needed in the budding and flowering stage of Begonia bulb. Summer needs to increase air humidity by spraying water. Begonia bulb gradually enters the dormant period in autumn and winter, and watering should be reduced. Fertilization requires thin application of work fertilizer, and some mature thin fertilizer and water can be applied every 10 times during the growth period. Some fertilizers are needed to promote flowering during flowering. Note that no fertilizer is needed in summer and winter.

Matters needing attention of Begonia bulbosa

The propagation of Begonia bulb is mainly sowing propagation, cutting propagation and cutting tuber propagation. Sowing and reproduction can be sowed in spring or autumn, and cutting is mainly in late spring and early summer.

Common Diseases and insect pests of Begonia bulb and its Control

1. Powdery mildew. Control method: control the amount of nitrogen fertilizer used. Before the onset of the disease, 60% Dysen zinc wettable powder was sprayed every two weeks or so. At the initial stage of the disease, 1000 times of methyl topiramate or 1000-2000 times of Fenxiu Ling could be sprayed to prevent and cure the disease.

2. Stem rot. Prevention and treatment: in the early stage of the disease, carbendazim can be sprayed to kill or 65% dimethazone 600-800 times, and so on.

3.Botrytis cinerea. Prevention and treatment: pay attention to ventilation and light transmission, control humidity. In the initial stage of the disease, spraying 1500 times of 70% methyl topiramate or 80-1000 times of Dysenamine every 10 days can effectively carry out prevention and treatment.

4. the common insect pests are shell insects, aphids, leaf rollers, thrips and so on. Shell insects can be sprayed with 1000 times of omethoate EC, 4000 times of potassium permanganate for thrips, 2000 times of pyrethroid EC and 2000 times of rotenin, etc.

In fact, the culture method of Begonia is not difficult, first of all, the proportion of soil should be carried out, then the temperature and light should be controlled, and shading should be carried out in summer. In the later stage of culture, it is necessary to strengthen the control of fertilizer and water, only in this way can its growth be guaranteed.