T/HVIA 007-2022 Active

Main Technical Content: 4.1 Daylight greenhouses and plastic arched sheds for strawberry production, equipped with drip irrigation facilities, to facilitate the operation of medium- and small-scale tillage equipment. 4.2 Continuous strawberry cultivation for more than 2 years, or a strawberry crop with a root rot or wilt disease incidence rate of over 20% in the previous season. 4.3 The transportation, storage, use, and disposal of Cotton Long and Weibaimu should comply with the requirements of GB 12475. 5. Soil Disinfection 5.1 Sunlight Disinfection 5.1.1 The disinfection should be carried out during the high-temperature period from June to July. 5.1.2 After clearing the previous strawberry crop, timely remove strawberry residues and clean up weeds. 5.1.3 Cover the ground with a whole piece of plastic film and compact the edges with soil. 5.1.4 Seal the greenhouse and check the film for leaks and damage, maintaining cleanliness and good light transmission. 5.1.5 Seal the greenhouse and maintain an air temperature of over 60°C for 7-10 days. 5.2 Fumigation Disinfection 5.2.1 After sunlight disinfection, select Cotton Long or Weibaimu soil disinfectants for fumigation. 5.2.2 Disinfection conditions: Soil temperature within 12–18 cm should be 15–30°C; soil relative humidity should be 55–65%. 5.2.3 Safety measures: Operators should wear masks, latex gloves, and protective clothing during weighing, application, and film removal to avoid direct contact with the disinfectant. Comply with GB 12475 standards for safe operation. Thoroughly wash used clothing and equipment after application. 5.2.4 Cotton Long disinfection 5.2.4.1 Application rate: 20–25 kg/mu. Evenly sprinkle Cotton Long on the ground (including around the pillars). Till the soil to 25–30 cm deep to mix the drug with the soil. 5.2.4.2 Film application: Use a polyethylene original film with a thickness of 0.04 mm or more to seal the soil. Use the reverse pressing method (ditch