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Strawberry Spring Management
In spring, effective management of grass poisons is essential to ensure the healthy growth of crops, leading to early results, high quality, and increased yield. The following measures should be implemented:
When the average temperature of the unheated membranes stabilizes around 10°C, it's time to start removing the winter covers. Care must be taken to avoid damaging the flower buds during this process. If agricultural film is used, it should be removed during the day and replaced at night, gradually over time to prevent large temperature fluctuations that could harm the strawberries. After uncovering, promptly remove old, diseased, and yellowed leaves to improve light penetration and reduce disease risk.
During spring cultivation, regular weeding and soil loosening are necessary to avoid root damage and prevent soil clods from crushing young plants. It is also important to combine field cultivation with ditch cleaning to ensure proper drainage and eliminate waterlogging. Once the strawberries begin to grow, remove old and diseased leaves, and bring in external fertilizers to prevent disease recurrence.
In mid-to-late March, apply topdressing with irrigation. Use 10–15 kg of urea or 20–30 kg of compound fertilizer per mu. Additionally, spray 0.3% to 0.5% potassium dihydrogen phosphate two or three times during the flowering and fruiting stages to enhance both yield and quality.
Flower buds that bloom on sparse inflorescences tend to produce larger, more mature fruits. Therefore, after budding, thin out the buds to reduce nutrient competition, resulting in larger, tidier fruits that mature earlier and have better quality. Remove 20% to 25% of weak, late-developing buds.
As pests become active in spring, underground pests such as wireworms, grubs, and locusts may begin to attack the roots and stems of strawberries. To control them: 1) Perform shallow tilling in early spring to destroy eggs and weeds in the soil; 2) Apply 200 g of 90% trichlorfon or 200–300 g of 50% phoxim emulsion diluted in 500–700 times water and water it into the root zone. For diseases like leaf spot, gray mold, bud blight, and powdery mildew, early prevention is key. Spray a solution of 50% carbendazim or 70% thiophanate at 500–800 times dilution. Viral diseases are often spread by aphids, so spraying 40% omethoate at 800 times dilution can help control them. Avoid using chemical pesticides during the fruit ripening stage to ensure food safety.