Reasonable topdressing. The strawberry that enters the fruit picking period is usually topdressed once in about 20 days, and the top dressing can be combined with irrigation. The fertilizer with quick-acting nitrogen and potassium fertilizers can be applied for 15 kg per mu.
Plant cleanup. Remove old leaves, diseased leaves, and stolons in time to reduce nutrient consumption, and often retain 4-5 functional leaves. Appropriately thinning the flowers and thinning the fruit, and the fruit that is too short, the flower is small, the fruit will not be hypertrophied, and the fruit soybeans are deformed when they are large.
Temperature and humidity regulation. Grab the fine weather and carry out the necessary ventilation and dehumidification to increase the light. In the low temperature season, the temperature in the shed should be kept at 20 ° C ~ 25 ° C during the day and 5 ° C at night. Humidity has a great influence on strawberry flowering pollination, high humidity, low pollen germination rate, and often increase the fruit rate and deformed fruit. Therefore, the relative humidity in the shed should be kept at 50% to 60%. At the same time, add bees in time to ensure the quality of pollination. After the greenhouse is promoted into the spring, the temperature rises gradually, and the temperature rises rapidly in the shed. At this time, as the temperature rises, the ventilation is gradually increased to prevent the temperature in the greenhouse from being too high, otherwise the strawberry fruit will become smaller and more acidic.
Prevent disease. 1. Botrytis cinerea: can occur in leaves, flowers, and fruit. At the time of initial dip dyeing, the diseased part showed no obvious brown moist spots, and gradually expanded later. In severe cases, the surface of the diseased part was densely grayed with gray mold, and when the humidity was high, white flocculent hyphae grew. Control method: use 45% chlorothalonil WP 250g per acre, ignite in the evening, close the shed overnight, even smoke 3 times; alternately use 10% Shigao water dispersible granule 1000 times solution, 50% phlegm hygroscopicity Powder 1500 times solution, 50% speed Keling 1500 times liquid spray, once every 7 days. 2. Powdery mildew: mainly damages leaves, also infects leaf stalks, flowers, pedicels and fruits. In the early stage of the onset of leaf back, a thin creamy white powder appeared locally, and then rapidly spread to the whole plant. In severe cases, the leaves curled upward and the lesions turned reddish brown. The surface of the fruit is covered with a layer of white powder. Control method: use 10% Shigao water dispersion 1300 to 2000 times liquid (11.5 ~ 7.5 grams of water 15 kg) or 40% Fuxing emulsifier 8000 times liquid (1.875 grams of water 15 kg), spray every 7 to 10 days Times.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Medical Equipment Disposal,Syringes Needles Sizes,Disposable Syringe,Insulin Syringe
FOSHAN PHARMA CO., LTD. , https://www.fspharmaapi.com