First, sunlight disinfection
The prepared culture soil is placed on a clean concrete floor, on a wooden board or on a metal sheet, thin and flat, exposed to sunlight for 3-15 days, and a large number of pathogenic spores, hyphae and eggs, pests, and nematodes can be killed. Disinfection by this method is not completely thorough, but it is most convenient.
Second, steam sterilization
The nutritious soil is steamed in a steamer or Autoclave and heated to 60-100°C for 30-60 minutes (the heating time should not be too long, so as not to kill the beneficial microorganisms that can break down the fertilizer and affect the soil fertility), which can kill most of the Bacteria, fungi, nematodes and insects, and deactivate most weed seeds.
Third, boiled disinfection
Pour the culture soil into the pot, add boiling water for 30-60 minutes, then dry the water by filtration and allow it to dry to moderate humidity.
Fourth, fire disinfection
A small amount of soil for protection seedbeds or cuttings and sowing can be placed on a wok or iron plate and burned. After the soil particles are dried and then burned for 0.5-1 hour, the pests in the soil can be completely eliminated.
Fifth, drug treatment
Different pesticides can be used in the family to fumigate the soil. After the soil is sieved, a layer of soil is sprayed with chemical agents, a layer of soil is added, then the agent is sprayed again, and finally covered with a plastic film, sealed 5-7 Days, and then open air for 3-5 days to use. Commonly used agents are formaldehyde, zeocin, carbendazim, sulfur powder and so on.
Guangdong Widinlsa International Co.Ltd , https://www.widinlsa.com