In recent years, the number of farmers cultivating strawberries on the outskirts of cities has been steadily increasing. However, achieving both high yield and early maturity remains a challenge, as there are still many aspects of cultivation that require improvement. Strawberries are highly sensitive to environmental conditions. They can grow continuously when the environment is favorable, but they may enter dormancy quickly if conditions are not right. If the soil is dry and lacks nutrients, the temperature is too low, the seedlings are weak, or growth becomes too vigorous, it can lead to delayed or poor formation of flower buds, which in turn affects the ripening period, yield, and overall quality. To ensure early maturity, high yield, and good quality, it's essential to optimize growing conditions and farming techniques.
First, proper fertilization is crucial. A base fertilizer should be applied at planting, typically 4,000 kg of farmyard manure per acre, or 100 kg of bio-organic compound fertilizer, or 20–25 kg of high-concentration inorganic compound fertilizer. For healthy seedlings, applying phosphorus and potassium fertilizers is recommended, such as spraying 0.2% potassium dihydrogen phosphate 2–3 times. If the seedlings are weak or the fruiting stage is too vigorous, 15–20 kg of compound fertilizer or 10 kg of urea can be used. It’s also beneficial to apply Hui Man Fung active liquid fertilizer—100 ml per mu diluted in 50 kg of water, applied 2–3 times. When using clear water for irrigation, care must be taken to avoid environmental pollution and prevent fruit from becoming too soft.
Second, controlling humidity and temperature is key to breaking dormancy. The ideal temperature for strawberry flowering is between 10°C and 20°C. If temperatures drop below 10°C or rise above 35°C during sunny days, it can result in poor pollination and deformed fruits. The critical temperature for dormancy is around 35°C. At -1°C, plants can suffer frost damage, especially to the pistils. Strawberries prefer moderate moisture, with an optimal relative humidity of 60–70%, meaning the soil should hold about 80% of its water capacity. To maintain this, three-layer film coverage is recommended: mulch film, greenhouse film, and a small shed film. On hot, sunny days, ventilation should be done by opening the sides of the shed film. During periods of drought and high temperatures, small ditch irrigation can help maintain suitable conditions for early flower bud differentiation.
Third, effective pollination and fruit management are important. While strawberries mostly self-pollinate, poor pollination can lead to deformed or undersized fruits. To improve fruit quality, artificial pollination should be carried out daily between 10 am and 3 pm. Another method is to introduce bee hives into each greenhouse to assist with pollination. Additionally, it’s important to control the number of fruits per plant—typically around 20 fruits per plant—and remove excess young buds and small fruits regularly. Also, limiting the number of runners to 2–3 new shoots per plant helps maintain plant health and productivity.
Lastly, regular removal of old leaves is necessary to prevent pests and diseases. Throughout the growing season, older or diseased leaves can become a breeding ground for pests and pathogens. Common issues include viral infections, gray mold, leaf spot, and powdery mildew, as well as pests like aphids and spider mites. Prevention strategies include maintaining proper temperature and humidity, promptly removing infected leaves, and using appropriate chemical treatments. For pests, lime sulfur, insecticides, and quick-acting sulfur can be effective. For diseases, products like polyoxin-pyrazine, general K crop bactericidal repair fluid, and Shile can be used for prevention and treatment.
Squid Frozen,Frozen Squid Illex,Fresh Squid,Frozen Pacific Squid
Zhoushan City Shuangying Aquatic Products Co., Ltd.  , https://www.shuangying-aquatic.com