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How to raise Petunia?
1, soil: Petunia can be raised in loose and well-drained slightly acidic sandy soil, and some perlite or vermiculite can be added appropriately to increase the permeability of the soil.
2, watering: need enough water to ensure that there is enough water in the bottom basin. In winter, it is recommended to ensure adequate water at sunny noon and not to over-water.
3. illumination: it needs illumination for its growth. It should be placed on a table near the south with enough lighting. In the case of sufficient water, we should ensure sufficient sunshine and avoid direct sunlight.
4. Temperature: It has certain low-temperature resistance and can grow at a low temperature of 5℃, but the sunshine must be sufficient.
5. Fertilization: its growth needs sufficient fertilizer, and it should be fertilized regularly with a period of 10- 12 days, and slow-release fertilizer can be used.
Second, the method of reproduction.
Seeding and seedling raising: it can be cultivated all year round. Put the seedling soil in a disposable paper cup (with several holes at the bottom) or a small flowerpot, pour in water, and wet the seeds with spray. Do not cover the seeds with soil, which will affect the germination of the seeds. The temperature should be kept at 22~24℃ to ensure that the seedlings grow in a well-ventilated and sunny environment.
Third, pest control.
Common diseases and insect pests of Petunia include white mold, leaf spot and virus disease, and the control methods are as follows:
1, white mold: at the initial stage of the disease, the diseased leaves should be removed and 75% chlorothalonil should be sprayed 600 ~ 800 times.
2. Leaf spot disease: Be sure to take off the diseased leaves and burn them to prevent damage from strong wind, sun exposure and low temperature. Spray 50% mancozeb 1000 times.
3. Viral diseases: Insecticide should be sprayed in the early stage, and 40% omethoate 1000 times solution should be sprayed. Pay attention to disinfection when you come into contact with diseased plants during planting.
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