Summer high temperature, high humidity, and more rain, it is very easy to cause the occurrence and spread of vegetable seedling diseases. It has a great impact on the summer seedlings such as tomatoes, green peppers, eggplants and so on. To cultivate healthy seedlings, we should focus on the following four points:
The yellow bed is prepared to select loam beds with high topography and loose fertility as bed beds, and use bedrock with disease-free new soil or garden soil that has not been planted with eggplant vegetables within 2-3 years. Basal fertilizer must be decomposed, seedbeds, nutritious soil, and seeds must be disinfected.
Seeds should be treated before seeding sowing, often using hot-soaking soaking method or chemical seed dressing method, focusing on the disinfection of viral diseases and bacterial pathogens. The sterilized seeds are soaked in clean water, then wrapped with a damp cloth, germinated under appropriate temperature and environmental conditions until the seeds are white and then sown. 5 to 7 days before sowing, watering ostriches. Sowing should be uniform and not too dense, otherwise it will make the seedlings grow long, causing the stalks to be weak and lodging. After sowing, cover soil, about 1 cm thick, and a small amount of water to keep the seedbed moist. When a newly hatched seedling has a cap phenomenon, it may spray some water or sprinkle some moist fine soil to increase the humidity and help the seedlings to uncrust.
Strengthen seedling management When the seeds break down and germinate, timely weeding. When the light intensity is strong at noon, appropriate shades should be provided and ventilation should be strengthened. Nitrogen fertilizer should not be applied to prevent leggings from growing. Keep seedbeds moist, reduce soil temperature, and prevent seedlings from wiping due to lack of water. After the heavy rains are drained in time to prevent the seedling rot caused by excessive water in the seedbed.
Prevention and treatment of pests and diseases Solanaceae vegetable seedlings common diseases are damping-off disease, blight, virus disease, gray mold, etc., pests are aphids, whiteflies, cockroaches and so on. Seedlings can be sprayed with 75% chlorothalonil 1000 times, or 65% dexamethasone 1000 times at the beginning of the seedlings, sprayed once every 7-10 days, and sprayed once or twice. If locusts or whitefly are found, insecticides can be used for control. If you find earthworms and other underground pests, you can use drug bait trapping.
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