What is used for soil disinfection and sterilization? What is the best medicine for soil disinfectio

1. Poison disinfection method. First, the agent is prepared into poisonous soil, and then it is applied in furrows, holes or sprinkles. The preparation method of poisonous soil is to mix a certain amount of pesticides (emulsifiable concentrate, wettable powder, granules, etc.) with fine soil with a certain humidity in a certain proportion and then apply it, and the commonly used agents are dixone powder, pentachloronitrobenzene, aluminum ethyl phosphorus, etc.

2. Liquid medicine disinfection method. After diluting the agent into a certain concentration of liquid medicine with water, spray it on the surface of the soil with a sprayer, or directly water it into the soil, so that the liquid can penetrate into the deep layer of the soil and kill the germs in the soil. The spraying method is suitable for the field, seedling nutrient soil, etc.

The irrigation method is suitable for the irrigation of melons and nightshade crops and the disinfection of seedbeds of various crops. Commonly used drugs are carbendazim, chlorothalonil, Lvheng No. 1, Lvheng No. 2, etc.

3. Fumigation and disinfection. Use a soil disinfection machine or soil syringe to inject fumigants into the soil, and then cover the surface of the soil with a plastic film, so that the toxic gases can be diffused in the soil and kill the germs in the soil under closed or semi-closed facility conditions. After soil fumigation and disinfection, the agent must be fully volatilized before sowing and planting.

Otherwise, it is easy to produce pesticide damage, resulting in lack of seedlings, weak seedlings and reduced yield. Commonly used soil fumigation disinfectants are formaldehyde, methyl bromide, etc. This method is suitable for melons, vegetables, seedlings, etc. cultivated in protected areas.

Fourth, solar soil disinfection method. After the protected vegetables, flowers, etc. pull the seedlings, apply enough rotted organic fertilizer and cake fertilizer, and then level the ground and rake finely, in the high temperature season in July and August, every 1 15 hectares (1 mu) with wheat straw or straw 800 1000 kg, 4-6 cm long, evenly sprinkled on the ground, and then evenly sprinkled with 20-25 kg of quicklime, turn the ground, algae water, spread film, and then close the greenhouse for 15-20 days. In this way, the surface temperature can reach more than 70, and the temperature of the 10 cm underground soil layer can reach 50-60, which can better kill the bacteria and nematodes in the soil.

This method is suitable for application in greenhouses where strawberries, watermelons, tomatoes and other greenhouses are planted year round.

Hope it solves your problem.

Soil disinfection and sterilization can be done with the commonly used 84 disinfectant.

The commonly used 84 disinfectant can be used for pharmaceutical disinfection, and the concentration should not be too large, generally two to three percent. Use a sprayer to disinfect evenly. Stir the soil while spraying.

Soil disinfection is a technology that efficiently and quickly kills fungi, bacteria, nematodes, weeds, soil-borne viruses, underground pests, and rodents in the soil, which can well solve the problem of heavy stubble of high value-added crops and significantly improve the yield and quality of crops.

Soil disinfection is the phenomenon of applying chemical pesticides to the soil to kill germs, nematodes and other harmful organisms. It is generally carried out before the crop is planted. In addition to the application of chemical pesticides, soil disinfection can also be carried out using dry heat or steam.

Measures and processes for destroying, passivating, reducing or removing from soil all microorganisms, contaminants and toxins that may cause infection, poisoning or adverse effects of plants and animals.

Soil disinfection is a common practice to help minimize pest infestation attacks and thus improve the survival and quality performance of crops. Of course, it can also help to improve the parameters of the soil, making it suitable for the cultivation of a wide variety of plants. However, the knowledge involved in the consideration of the actual situation will help to some extent in determining the appropriate soil disinfection method to choose.

Soil disinfection commonly used fumigants chloropicrin (trichloronitromethane), methyl bromide fumigant, oil agent acetimidate (cyanochlorin) and granules cotton (dimethylzine), among which the most widely used is chloropicrin. Because the smoke generated when disinfecting with fumigants is more serious to the environment, and it will also cause harm to the surrounding crops, it is generally not recommended to use, and you can choose to use oils and granules.

Fumigation method: a bottle of formaldehyde solution, diluted 80 times, mixed into a pot of soil, put the soil into a closed plastic bag, take it out after 2 weeks, and dry it for 1 week. It is more convenient and effective to use formaldehyde solution fumigation, but you must pay attention to safety when operating, formaldehyde has a strong lethality, and it must be kept away from the nose and mouth.

After fumigation, it must be dried to let the formaldehyde disappear in order to harm the potted flowers.

Precautions for soil disinfection.

Soil moisture should be maintained at 60% to 70% during disinfection. If the humidity does not reach 60% on consecutive sunny days, it is necessary to water the ground in advance. 3 to 4 days after watering (the humidity is kneaded by hand and can be dispersed when it lands at a height of 1 meter), various pathogenic bacteria and root-knot nematodes are in a sensitive state to the agent, and weed seeds are ready to sprout, which is more likely to be killed by soil disinfectants.

The plastic film covered after the application of the soil disinfectant should not be too thin, and it is better to use a non-transparent film (not breathable) or a thickness of more than a millimeter. The four sides of the plastic film should be pressed well, pay attention to not be damaged, and it is best to use a new film to prevent air leakage and reduce the disinfection effect. From rotary tillage to mulching, it is best to complete it in 2-3 hours.

Hello answer, about your question I think 1, the combination of quicklime and broken hay, because we have no straw there, generally use wheat straw grass, especially suitable for closed vegetable greenhouses. Mix these two, then sprinkle them on the greenhouse soil, and then use small water for flood irrigation until they are thoroughly watered, because the lime will heat up after encountering water, and then directly seal the greenhouse, and there will be about 10 days to kill the soil well. Hope it helps.

1. Several methods of soil disinfection:

1. Exposure to the sun. We can put the soil in the scorching sun for a few days, and it is best to spread the soil, although it will destroy the results of the soil and microorganisms to a certain extent, but the effect of sterilization is still good.

2. Disinfection of boiling water.

Use boiling water, water directly into the soil, water it several times, then drain the water, dry it a little, and you can use it to plant flowers when the soil is not so sticky.

3. Drug disinfection.

With bactericidal drugs, commonly used bactericides such as carbendazim, chlorothalonil, fludichlorium, oxachlorine, dixon, etc. Mix with water and then spray it onto the soil, preferably with a protective film to seal the mouth of the basin for 2 to 3 days.

2. How to turn garden soil into nutrient soil?

1. Increase drainage and air permeability.

To increase the drainage of the soil, you can add some granular soil, the common is river sand, because it is the easiest to obtain, the screen length of the building sand on the line, the sand is divided into fine sand and coarse sand after sifting, used to mix into the soil generally with fine sand, paving or padding at the bottom of the pot with coarse sand.

2. Composting. There is kitchen waste at home that needs to be disposed of, all kinds of vegetable leaves and peels can be collected, they are all good compost materials, and there are not too many materials.

You can mix them with garden soil, and then mix them evenly and pile them in a warm place, properly keep them slightly moist and not waterlogged, and after half a year, they will become fertile compost soil, which is slightly acidic and suitable for raising flowers.

3. Collect fallen leaves and garden soil.

Usually the fallen leaves are collected and burned directly, it is very wasteful, they are very good compost materials, and they can even be mixed with some small twigs and dead wood, and then dig a pit in the yard, or prepare a large container, and then put the big trees and dead wood on the bottom layer, and then put another layer of soil, then put another layer of fallen leaves, and then put the soil and leaves in a compartment.

Once it's fully decomposed and fermented, you get a wonderful, nutrient-rich nutrient soil that you can use to grow your flowers.

First, you can spread the soil on a clean floor and let the sun dry for 2 to 3 days, which is very simple. Second, it heats the soil and kills a large number of harmful substances in the soil. Third, spray a special agent, spray it on the soil, and then cover the soil with plastic film.

I think you can sprinkle some quicklime on them, quicklime can also do these things, and it can also regulate the acidity and alkalinity of the soil.

Sun exposure can disinfect and sterilize the soil. The soil can be spread out and exposed to the sun, which can kill bacteria and insect eggs.

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

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.

Hello dear, I am honored to answer your questions about the choice of soil sterilization and disinfectant, which should take into account many factors, including crop type, soil type, disease type, use environment, etc. Here are some commonly used soil sterilization and disinfectants for your reference:1

Chlorinated lime: can be used to disinfect soil and plants. However, it should be noted that chlorinated lime should be fully rinsed after use to avoid damage to crops.

2.Methyl bromide: It can quickly kill pathogenic bacteria and weed seeds in the soil, but it has certain harm to the environment and human health.

3.Copper sulfate: It can be used to control fungi, bacteria and other pathogens in the soil empty-handed.

But care should be taken to use concentrations so as not to cause damage to the soil and crops. 4.Activated charcoal:

It can adsorb organic matter and heavy metal ions in the soil, thereby reducing the growth of pathogenic bacteria and weeds. 5.Hydrogen peroxide:

It can effectively kill pathogenic bacteria and weed seeds in the soil, but it is necessary to pay attention to the concentration and application method to avoid damage to the soil and crops. It should be noted that the selection and use of pesticides should be determined according to the specific situation and professional guidance, and the amount and method of use of pesticides should be paid attention to avoid adverse effects on soil, crops and the environment.