How do you disinfect the soil before transplanting?

The method is to heat the nutrient soil needed by the plant in a pressure cooker or steamer. Usually heating to 60 to 100 degrees Celsius is fine. The time is about 30 to 60 minutes.

Be careful not to heat for too long. Otherwise, the fertility of the soil may be affected due to the death of beneficial microorganisms that break down the fertilizer. MethodThe prepared fertilizer is thinly spread on a clean concrete floor, iron plate or wooden board, exposed to sunlight for 3 15 days, which can kill a large number of pathogenic spores and hyphae in the soil, as well as nematodes, pests, etc.

The advantage of this method is that it is more convenient to operate, but the disadvantage is that it is not thorough enough. A small amount of planted soil is burned with fire after being put into an iron plate or iron pot, and the soil is dried and burned for about 30 minutes to 1 hour to remove germs and pests in the soil.

There are many ways to disinfect flowers, the easiest of which is to use sunlight directly, which contains a lot of ultraviolet rays and can be disinfected. But sunlight doesn't illuminate all the soil, so it can't avoid leaving eggs. Find the plastic film, open all the soil directly collected from the outside, put it on the film, expose it for about 2 3 days, and most of the pests in the soil will disappear, which can be said to be the easiest and most convenient disinfection method.

For some germs and pests, the most unbearable thing is the high temperature environment. If you take advantage of the high temperature conditions, the disinfection effect will be very good. It can control the temperature above 100 degrees Celsius, kill bacteria in the soil, etc.

If the conditions at home are superior, you can choose a steamer, put the soil collected from the outside into the steamer, put some water in the pot, and then steam it directly. This makes good use of the released water vapor to achieve a good disinfection effect. When we change the pot, if we don't change the pot much, just one or two pots of soil, we can disinfect it on the small balcony of my house.

First of all, spread the soil on the small balcony of your house, open the soil, and try to let all parts bask in the sun, about two or three days of exposure.

If there are conditions at home, we can also use methods such as high-temperature disinfection. As the name suggests, high-temperature disinfection is to disinfect the soil in a high-temperature environment, so that the insect eggs and germs and viruses in the soil are killed at high temperature. Another method is to fry the soil in a large iron pan.

This method of soil sterilization is usually used in rural areas. Because there are large iron pots in the countryside that specialize in high-temperature sterilization, it is very convenient to use.

It can be treated with the resurrection spirit of Zhongwei Happy Forest, which is diluted 1000 to 1200 times. Watering the root system for a week after evenly spraying wet soil balls or transplanting, and then watering thoroughly, can effectively reduce the occurrence of root diseases, especially for root rot.

Solar disinfection method: This is very simple and does not require superfluous operations at all. Spread the soil we have selected directly on the ground.

Spread it out and expose it directly to the sun for a few days. Because exposure can kill a large number of spore pathogens in the soil, the eggs of various harmful insects can generally be used.

1. Steam sterilization method. The steam disinfection method is to put the soil of the plant in the pressure cooker, the pressure cooker here can also be replaced by a steamer, and it will be heated after putting it in, generally heated to 60-100 degrees Celsius, and the time can be controlled in about 30 to 60 minutes.

2. Sunlight disinfection method. Sunlight disinfection method is to put the prepared fertilizer and soil on a clean ground, put it on an iron sheet or a wooden board, spread a thin layer, and then put them in the sun to expose to the sun, the time is about 3 to 15 days later, it can kill the bacteria that exist in the soil, and even some pests can also be eliminated, the point of this method is that it is more convenient to operate, but it cannot completely guarantee the elimination of these harmful substances and organisms.

3. Boiling disinfection method. The boiling disinfection method is to put the soil in water, pour it into the pot together** boil, take it out when it is about 30 to 60 minutes after boiling, then filter out the water, spread the soil and dry it outdoors, and dry it until the humidity of the soil is moderate.

Before sowing, the nursery should be ploughed and harrowed three times, and the ploughing should be finely tied. On the acidic soil in the south, combined with land preparation, 20 25 kg of quicklime per mu is sprinkled, which has a certain effect on inhibiting pathogens in the soil and promoting the decay of plant residues. In mountainous areas where firewood and grass are more convenient, three burns and three diggings can be carried out to smelt the surface layer of the nursery and "disinfect" the soil surface.