Black Pepper,Black Pepper Powder,Chinese Black Pepper,Herbs Flavored Black Pepper Sichuan Liuhang Agriculture Co.Ltd , https://www.lhagriculture.com
How to Disinfect Soil
In recent years, the growing area of ​​economically valuable crops such as fruits, vegetables, and flowers has been continuously expanded, the production area of ​​protected areas has been continuously increasing, the high-density cultivation of facility agriculture, and the cultivation of a single crop on the same land year after year have contributed to soil conservation. The growth and reproduction of disease pathogens. However, if such diseases are not controlled in time, serious reductions in production or product quality may result, or even results in an unrequited harvest. Soil disinfection is one of the important measures for controlling soil-borne diseases. The specific methods are as follows: Disinfection of pharmaceutical agents The pesticides are applied to soil before and after sowing to prevent the spread of seeds and soil-borne diseases. The main application methods are as follows. 1. Spray or watering method. The agent is diluted with water to a certain concentration, sprayed on the surface of the soil with a sprayer, or directly irrigated into the soil so that the liquid penetrates into the deep layer of the soil and kills the bacteria in the soil. Spraying the soil to treat the soil is suitable for Daejeon, nursery soil, and turf rejuvenation. The application of watering method is suitable for irrigation of fruit trees, melons and solanaceous fruits, and sterilization of various crop seedbeds. There are commonly used disinfectants such as Luheng No.1 and No.2, which can prevent and treat diseases at the seedling stage and have significant effects. 2. Toxic soil method. The drug was first formulated as poisonous soil and then applied. Toxic soil is prepared by mixing the pesticide (emulsion, wettable powder) and fine soil with a certain humidity in proportion. The application methods of toxic soils include furrow application, hole application and application. 3. Fumigation method. Use a soil injector or soil sterilizer to inject the fumigant into the soil and cover the soil surface with a cover such as a thin film. In a closed or semi-enclosed facility, the fumigant's toxic gases are diffused in the soil to kill germs. After the soil is fumigated, the seeds can only be sown after the pesticide is fully distributed. Otherwise, it is easy to produce phytotoxicity. Commonly used soil fumigation disinfectants include methyl bromide and formaldehyde. This method is applied to the cultivation of strawberries, watermelons, and vegetables in facility agriculture, seedbeds for seedlings, lawn planting for green space, and the like. The method of solar energy disinfection is to remove the old strains in the field after the crops are harvested in the greenhouse or in the field, apply more organic fertilizer, and then flatten the ground. In July-August, when the temperature exceeds 35°C, cover with a transparent heat-absorbing film. Well, the soil temperature can be raised to 50-60°C and sealed for 15-20 days, killing various germs in the soil. This method is suitable for application in greenhouse greenhouses in northern China where strawberries, watermelons and flowers are planted year after year. Steam thermal disinfection steam thermal disinfection of soil, is heated by a steam boiler, steam heat through the catheter to the soil, so that the soil temperature, kill pathogens, in order to achieve the purpose of prevention and control of soil-borne diseases. This method of disinfection requires equipment that is more complex and is only suitable for crops with higher economic value and is applied in small areas on seed beds.