Reasonably top-dressing Zhao Huiyan said that for strawberries that are in the fruit-picking period, the top-dressing fertilizer usually takes about 20 days, and top-dressing can be combined with irrigation. When the first fruits of strawberry are basically harvested and the second batch of inflorescences is about to emerge, fertilizers should be topdressed appropriately. Fertilizers are mainly available nitrogen and potassium fertilizers, and 15 kg can be applied to each acre.
Plant cleaning removes old leaves, diseased leaves, and stolons in time to reduce nutrient consumption and often retains 4 to 5 functional leaves. Zhao Huiyan reminded the fruit growers to pay attention to the appropriate sparse fruit thinning, sparse fruit stems too short, small flowers, fruit hypertrophy, and fruits that have been deformed.
Temperature and humidity control in the winter, should seize the fine weather for necessary ventilation and dehumidification, increase light. During the low temperature season, the temperature in the shed is kept as much as 20°C to 25°C during the day and 5°C at night. Zhao Huiyan told reporters that humidity has a great influence on strawberry flowering and pollination. High humidity and low pollen germination rate often increase the rate of small fruit and malformed fruit. Therefore, try to keep the relative humidity in the shed at 50% to 60%. At the same time, bees are added in time to ensure pollination quality. After the spring begins, the temperature gradually rises and the temperature in the shed increases rapidly. At this time, the ventilation volume should be gradually increased to prevent the temperature in the greenhouse from being too high, otherwise the strawberry fruit will become smaller and become acidic.
Pest control
Botrytis cinerea: 45% chlorothalonil WP per acre 250g, ignited in the evening, closed over the night, even smoked 3 times; alternate use of 10% Shigao water dispersible granules 1000 times, 50% acetaminophen Wet powder 1500 times, 50% fast gram spray 1500 times, 7 times a day.
Powdery mildew: 10% of World High Water Dispersed Granules (1300 to 2000 times of liquid per 7.5 to 11.5 grams of water) or 40% of Fuxing Star EC 8000 (15 kg per 1.875 g of water) every 7 to 10 days Spray 1 time.
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