Pre-planting treatment Effective treatment of strawberry planting substrate and timely disinfection are the basic links for the healthy growth of strawberry seedlings. For facility strawberry cultivation, the recommended substrate composition and ratio are: substrate 50% peat (or vermicompost) + 35% vermiculite. At the same time, the substrate must be disinfected. The method is as follows: the substrate is piled up to 20 cm thick, according to 5 liters 20% horseradish extract per mu or 20-25 kg/mu 95% chloropicrin liquid, deflated after sealing with Plastic Film for 7 days, and used after deflating for 7 days. Since some strawberry seedlings may carry some pathogenic bacteria themselves, it is necessary to dip the strawberry seedlings into the roots while disinfecting the substrate, so as to greatly reduce the incidence of disease after strawberry planting. Before strawberry planting, remove the old leaves at the bottom, leaving only 2 to 3 new leaves, use 29% pyrazonamid·azoxystrobin 700 times solution or 300 g/L 42.8% trifloxystrobin·fluopyram Soak the bare strawberry roots in the aqueous solution for 5 minutes, or mix the Pythium oligandrum preparation and Trichoderma harzianum preparation with flour (Pythium oligandrum/Trichoderma harzianum: flour: water = 1:200:500) to make a thin batter. Root seedlings are treated with dipping roots. Dip root treatment******Choose cloudy or evening. Post-planting treatment After planting, using root irrigation treatment can further prevent the occurrence of diseases and enhance the disease resistance of strawberry seedlings. For sheds with a lighter incidence in the previous season, biological agents such as 1 million spores/gram of Pythium oligandrum, Teribacterium (Trichoderma Haci T-22), and 2% lentinan water can be used for root irrigation. The shed can be filled with 250g/L pyraclostrobin 1200 times liquid, 70% thiophanate methyl 1500 times liquid, 25% azoxystrobin suspension, etc. for root irrigation. TIF film is a multilayer film that prevents gas permeation. Using TIF mulching and using the disinfection method of covering on the ridge, the concentration of the soil disinfectant can be reduced to 30% of the usual concentration, and an ideal soil disinfection effect can still be achieved, effectively reducing the number of pathogens in the soil, maintaining crop yields, and substantially Reduce the use of soil disinfectants, and make more disinfectants degraded under the mulch and in the soil, reduce the dissipation of toxic disinfectants in the air, and reduce potential risks to human health and the environment. Comprehensive control Agricultural control: On the premise of pre-disinfection of the soil, the following aspects should be paid attention to: in the daytime when the weather is fine, increase ventilation and reduce the temperature and humidity in the Greenhouse; timely remove diseased leaves, diseased stems, dead leaves, Old leaves and diseased and stubborn plants should be destroyed; properly apply fully decomposed farmyard manure to improve soil viscosity and permeability; strengthen field management, increase the application of biological bacterial fertilizers, phosphate and potassium fertilizers, cultivating to avoid root damage, and rational irrigation and fertilization . Biological control: use 1000 times liquid of Bacillus subtilis (100 billion spores/g), 2000-3000 times liquid of Pythium oligandrum, 300-450 times liquid of 2% amino-oligosaccharin water for root irrigation, 250 ml/plant , Once every 7 days, irrigate the roots 2 to 3 times continuously. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Turnkey Project,Agricultural Film Greenhouses,Farming Tomatoes Greenhouse,Strawberries Hydroponic Growing System Qingzhou JuLong Agriculture Equipment Co.,Ltd , https://www.julonggrowtech.com