How to sterilize and disinfect the soil? The best way to disinfect and sterilize the soil

In the planting process of some high-efficiency crops, multi-year continuous cropping will lead to the enrichment of a large number of soil pathogenic microorganisms, resulting in serious diseases, which can make the soil lose its production capacity. In particular, soil-borne diseases in some protected areas, such as tomato late blight and cucumber scab. It is difficult for these diseases to achieve a more thorough effect only by relying on measures such as high-temperature stuffy shed, foliar spray control and seed dressing treatment.

So, is there an ideal method for soil sterilization and disinfection? There really is, and the following is a more effective method - using a mixture of ethylene oxide to sterilize and disinfect the soil.

Ethylene oxide has a more efficient sterilization and disinfection effect, so it can be used as a crop soil sterilization and disinfection to prevent soil-borne diseases of the soil, and the effect is more significant.

Ethylene oxide mixture is a gas-type preparation, which has a strong penetrating effect on the soil, so the sterilization effect is good, and there is no residual toxicity. It can penetrate the soil layer at a depth of 30 centimeters, act on the soil surface, and the sterilization rate can be as high as 100%, and the soil at a depth of 10 centimeters can kill 70%. In addition, it can also kill grass seeds, insect eggs and pests in the tillage layer.

The method of use is: the stubble fallow period of the protected land, there is no crop growth cover on the surface, and it is generally arranged in the high temperature period of June to August every year, at this time, many protected areas are in the period of stubble change and rest, and the higher natural temperature also helps the gas to diffuse and penetrate in the soil, and enhance the effect of soil sterilization and disinfection. First, the soil is ploughed and raked, and then the surface of the soil is covered with a complete plastic film, and the surrounding area is tightly covered with soil.

Then a small hole is pierced in the plastic film to inject the agent into it, and then the hole is tightly covered with soil. Let the medicinal gas diffuse under the film for four to five days, and remove the plastic film, which can achieve the effect of soil sterilization and disinfection.

Because the sterilization and disinfection of ethylene oxide mixed gas not only kills harmful soil-borne pathogens, but also kills some beneficial soil flora. The beneficial microflora in the soil can contribute to the transformation and decomposition of soil organic matter and improve soil activity. The killing of beneficial bacteria makes the soil a dead soil, and we need to apply organic fertilizer or microbial fertilizer in time to supplement the beneficial microbial flora, improve the activity of the soil and the transformation and decomposition of organic matter, and restore the microbial community in the soil.

After 20 days of medication, the medicinal gas has also been volatilized, and the application of an appropriate amount of high-quality decomposed organic fertilizer will help the recovery of the microbial community.

In conclusion, this method is most suitable for continuous cropping and serious disease of the protected plots, and the well-treated plots can maintain the effect for two to three years, and at the same time, the insect and weed damage can be reduced.

You can choose to use ultraviolet lamps to irradiate and spray disinfectant, which will not harm the soil and can have a sterilization effect.

Solar disinfection: Spread the soil flat on the floor or wooden planks and leave it in the sun for 2-3 days, turning repeatedly.

The soil can be ploughed out for sun, and the sun has the effect of disinfection and sterilization. It is also possible to use a plant disinfectant, which is sprayed evenly in the soil.

The best way to disinfect and sterilize soil: sun exposure, ice and snow cover, microwave oven drying, chemical spraying, boiling water soaking.

1. Sun exposure

The soil can be disinfected by sunlight, in high temperature and sunny weather, the flower soil is spread on the cement board or roof with sunlight all day, and the bacteria or pests can be removed by exposure for 3-5 days.

2. Ice and snow cover

When disinfecting the soil in winter, you can use a hoe to turn all the soil in the field during the freezing period, so that the inner layer of soil is exposed, destroying the wintering place of pests and diseases, and then using the ice and snow and the low temperature in winter to eliminate all the eggs and germs.

3. Microwave oven drying

When planting flowers and plants at home, you can use a microwave oven to disinfect the soil, mix the soil with water and moisten it, put it in a plastic bag, put it in the microwave oven after piercing the hole, turn it over after heating for 5 minutes, and continue to heat it for 5 minutes.

4. Spraying of chemicals

When the soil area is large, you can spray the agent sterilization, first buy carbendazim, chlorothalonil or potassium permanganate and other sterilization agents from the market, dilute it with water and spray it on the surface of the soil after the trimming, you can remove pests and germs, if you are worried about the effect is not good, you can cover the soil surface with plastic film or plastic film after spraying.

5. Blanch in boiling water

The soil can be soaked and disinfected with boiling water, first put the flower soil into a container that can store water, and then loosen the soil, and then pour boiling hot water into the soil to completely submerge the soil, and finally stir continuously with a wooden stick to make the water and soil mixed evenly.

Summary. Hello, I recommend four ways to disinfect the soil.

1.Oven disinfection is the easiest and most convenient, but there are also many things to pay attention to, to prepare the appropriate materials, this process generally takes half an hour, considering that the soil needs to be placed in the oven, so it is necessary to prepare a suitable container, preferably an aluminum pot or other container that can be placed in the oven, you can prepare an oven safety thermometer, prepare some water and sprayer.

The best way to disinfect and sterilize the soil

Hello, I recommend four methods for disinfection of soil1Oven disinfection is the easiest and most convenient, but there are also many things to pay attention to, to prepare the appropriate materials, this process generally takes half an hour, Kao Wei did not think about putting the soil in the oven, so to prepare a suitable container, preferably an aluminum pot or other containers that can be placed in the oven, you can prepare an oven safety thermometer, prepare some water and sprayers.

2.Steam sterilization, with a pressure cooker, the soil needs to be put into the pressure cooker, using heat and steam, infiltrating and circulating in the soil for sterilization, and some steamers and soup pots with brackets should be prepared. Late erection.

3.Boiling water sterilization is also the most commonly used soil sterilization method in the world, the advantage of using boiling water is that its temperature will not clear the cavity more than 100 degrees, which is also beneficial to the soil.

Dear, it is recommended to use boiling water for sterilization <> the quickest and most trouble-free way

1. Sunlight exposure: Put the soil in an environment with direct light and expose it to the sun for 2-3 days. 2. Drug disinfection:

Diluted ferrous sulfate or potassium permanganate is poured into the soil and covered with a film. 3. Heating: Wrap the soil in a bag and put it in a pot to steam.

4. Prepare soil: mix gravel, decomposed organic fertilizer and soil evenly.

1. Sun exposure

When disinfecting the soil, you can directly put the soil on the floor or wooden board, and then move it to an environment with direct light, expose it to the sun for 2-3 days, and turn the soil every 3-4 hours, so that the eggs and bacteria can be destroyed after exposure.

2. Drug disinfection:

If you want to completely disinfect the bacteria in the soil, you can spray potassium permanganate, ferrous sulfate, tobuzin, etc., dilute the agent with water, water it into the soil, then cover it with plastic film, lift it after 2 days, and dry the soil for 1 week.

3. Heat treatment

If there are continuous rainy days, you can wrap the soil in a plastic bag and put it in a pot to heat it, and when the temperature in the soil rises, it can destroy bacteria, or you can pour boiling water directly into the soil.

4. Prepare soil

After soil disinfection, it can be mixed with fine gravel, humus soil, and silt and sandy soil to increase the air permeability of the soil, and well-rotted manure should be added to the soil to provide nutrients to the root system of the plants.