After the typhoon, late rice production in Beihao suffered varying degrees of damage. Based on the local rice cultivation methods, specific recovery measures were implemented depending on the type and condition of the late rice.
**I. Recovery Measures for Direct-Seeded Rice and Seedlings**
1. **Timely Cleaning of Seedlings**: After the floodwaters recede, it's crucial to clean the seedlings by washing away mud and debris from the leaves. This helps improve photosynthesis and reduces leaf overlap. It's best to do this when the seedlings are just exposed above water. If the water returns too quickly, the seedlings may become lodged and grow slowly.
2. **Appropriate Water Management**: After submersion, the seedlings are weak and vulnerable to wilting, especially in hot weather. Maintain a 10–13 cm water layer, then drain the field after 4 PM and reapply shallow irrigation in the morning. This helps reduce stress and supports healthy growth.
3. **Fertilizer Application**: Once the water is drained, apply 2–3 kg of urea and potassium chloride per acre. Alternatively, use 8–10 kg of urea or 10–15 kg of compound fertilizer per acre to stimulate new root development and promote regrowth. Ensure timely transplanting of seedlings to support recovery.
**II. Recovery Measures for Daejeon (Transplanted) Late Rice**
1. **Quick Drainage**: Clear the drainage channels as soon as possible to minimize damage. Affected fields are particularly sensitive to drought. On cloudy days, one-time drainage is acceptable. However, during hot weather, only the upper part of the plants should be exposed, and drainage should occur in the afternoon to avoid further stress.
2. **Manual Assistance for Lodged Seedlings**: Carefully lift and straighten each lodged plant by hand, securing the roots to prevent further lodging. When raising the seedlings, be cautious not to damage the leaves. Use a sprayer to apply nutrient solutions or foliar sprays to restore physiological functions like respiration and photosynthesis.
3. **Timely Water Control**: After the standing water recedes, the soil remains saturated. Drain the excess water to allow the soil to dry slightly, helping the floating mud settle and encouraging new root growth.
4. **Increased Fertilization**: Apply nitrogen-based fertilizers, combined with phosphorus and potassium. Within three days after drainage, apply 8–10 kg of urea or 15–20 kg of compound fertilizer per mu. The amount depends on how long the rice was submerged — less if damage is light, more if it’s severe.
**III. For Paddy Fields with Long Submersion and Rotten Seedlings**
In cases where the seedlings have rotted due to prolonged flooding, plowing and replanting should be done promptly. Depending on the situation, these fields can be replanted with rice seedlings or switched to other crops such as vegetables, sweet potatoes, or corn. This ensures minimal loss and promotes quick recovery of the farmland.
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