How to prevent summer vegetables seedlings growers

The primary methods for preventing leggy seedlings include several key practices that help ensure strong, healthy growth. First, it's important to maintain an appropriate sowing density. Overcrowding after germination can lead to weak, elongated stems. For example, when growing eggplants, a seedbed of 2-3 square meters per acre is typically used, with 15-25 grams of seeds broadcasted. Once about 30% of the seeds have emerged, the ground cover should be removed promptly to prevent overcrowding. Second, timely thinning and transplanting are essential. After germination, especially for plants in the Solanaceae family (like eggplants), seedlings should be thinned out two to three times. When the seedlings have developed two leaves and one heart, they should be transplanted. The planting density should be maintained at around 120-130 plants per square meter to allow enough space for each plant to grow. Third, proper ventilation and light exposure are crucial. During the period after seedlings emerge and before transplanting, as well as after transplanting, good air circulation and light should be ensured. This helps reduce temperature and humidity, strengthens the seedlings' resistance, and prevents excessive stretching. Fourth, careful management of fertilization and watering is necessary. When preparing the nutrient soil, it's important to balance phosphorus and potassium levels while keeping nitrogen fertilizer under control. Watering should also be carefully managed, and if top-dressing is needed, nitrogen-based fertilizers should only be applied when absolutely necessary. Fifth, timely thinning of seedlings is important. About 20 days before planting eggplants or melons, overcrowding often occurs. At this stage, seedlings should be carefully moved and spaced out to provide each individual with enough room to grow and improve their survival rate. Lastly, chemical control can be used as an additional measure. If seedlings become too tall, a 0.2% Bordeaux mixture can be sprayed, or a 50% solution of chlormequat chloride diluted 2000-2500 times can be applied to suppress excessive growth. By following these methods, gardeners and farmers can effectively prevent leggy seedlings and promote robust, compact plant development.

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