How to disinfect a large amount of culture soil

What is your cultivation soil intended to cultivate? It is recommended to use chlorine dioxide disinfection tablets, which are A1 level green and efficient disinfectants determined by the Health and Family Planning Commission, and the Ministry of Agriculture has GMP certification.

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The above explanation is very detailed, I don't have much to say.

1.Determine the time and method of application.

Before soil disinfection, it is necessary to determine the time and method of application. Soil disinfection is generally best achieved in winter or early spring. The application method can choose chemical agents or physical methods, such as hot water disinfection.

According to different crops and conditions, choose the appropriate application time and method for soil disinfection.

2.Soil testing and preparation.

Before soil disinfection, soil testing is required to understand the physical and chemical properties of the soil and the types and quantities of pests. According to the test results, select the appropriate soil disinfectant and use concentration. At the same time, it is necessary to clear and prepare the fields, remove residual plants and weeds, etc., so that soil disinfectants can better penetrate into the soil.

3.Apply soil disinfectants.

Depending on the selected soil disinfectant and the concentration used, spread or spray evenly onto the field. Before application, it is necessary to pay attention to the dilution and stirring of the agent to avoid the occurrence of excessive or uneven concentration. It is generally recommended to spray the agent on the top layer of the soil and then bury it deep into the soil with a plow or rake to ensure that the agent can fully penetrate the soil.

4.Deep ploughing, mulching and moisturizing.

After the application of the soil disinfectant is completed, deep ploughing and mulching are required. Use a deep cultivator to fully penetrate the agent into the soil to cover the soil surface and avoid the loss and volatilization of the agent. In addition, moisturizing measures are also required to ensure that the agent is fully informed.

5.Pay attention to safety and the environment.

Before soil disinfection, it is necessary to pay attention to safety and environmental protection issues. Choose the right disinfectant and use it as required to prevent overuse or abuse. At the same time, attention should be paid to the packaging and storage of the agent to prevent the agent from polluting the environment and affecting health.

During the application process, protective equipment should be worn to avoid contact with the agent and inhaled agent volatiles.

6.Regularly monitor and deal with hail talks.

After soil disinfection, regular testing and treatment are required. Detect the physical and chemical properties of the soil and the number of pests, etc., and find and deal with problems in time. In the process of crop growth, pay attention to observe the growth status of crops and pests, and take timely measures to control pests and diseases.

7.Epilogue.

Soil disinfection is one of the important measures to ensure the safety of crop growth and increase yield. Before soil disinfection, it is necessary to carry out soil testing and preparation, select the appropriate agent and application concentration, and pay attention to safety and environmental issues. After the application of the agent, deep ploughing, mulching and moisturizing are also carried out, and soil problems are regularly monitored and treated to ensure healthy crop growth and high yields.

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.

1. Sunlight disinfection.

Put the prepared culture soil on a clean concrete floor, wooden board or iron sheet, spread it thinly, and expose it to the sun for 3 15 days, which can kill a large number of germ spores, hyphae and eggs, pests, and nematodes. Although disinfection is not thorough, it is the most convenient.

2. Steam sterilization.

Put the nutrient soil into a steamer or pressure cooker and steam it to 60 100 degrees Celsius for 30 to 60 minutes (the heating time should not be too long, so as not to kill the beneficial microorganisms that can decompose the fertilizer and affect the soil fertilizer efficiency), which can kill most bacteria, fungi, nematodes and insects, and make most of the weed seeds lose their vitality.

3. Boiling and disinfection.

Pour the culture soil into the pot, add water and boil for 30 to 60 minutes, then drain the water and dry to moderate humidity.

Fourth, fire disinfection.

A small amount of soil for seedbed or cuttings and sowing can be put into an iron pot or iron plate to add fire to burn, and then burn for an hour after the soil particles become dry, so that the diseases and insects in the soil can be completely eliminated.

5. Pharmaceutical treatment.

Different agents can be used in home flower raising to fumigate the soil, that is, after the soil is sifted, a layer of soil is sprayed with chemicals, then a layer of soil is added, and then a layer of chemicals is sprayed, and finally covered with plastic film, sealed for 5 7 days, and then open for ventilation for 3 5 days before use. Commonly used agents are formaldehyde, zebze, carbendazim, sulfur powder, etc.

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1. Pharmaceutical disinfection method. The simple steps are: (1) Clean the shed.

At the end of the stubble, all plant residues are removed from the greenhouse and buried or incinerated. (2) Dig deep into the soil. When the soil moisture is suitable, turn it deeply, to a depth of about 35 cm or more, and beat the large clods into fine pieces.

3) Medications. There are many potions available. For example, 50% carbendazim wettable powder can be used to prevent root rot, stem rot, leaf blight and gray spot and other diseases per square meter of soil; It can also be sprayed on the soil with a concentration of about 2% alcohol (mixed with water) and then covered with plastic film for 1-2 weeks; Or spray with the same amount of Bordeaux liquid kilograms per square meter of soil, which has obvious effects on black spot, spot disease, gray mold, brown spot and anthracnose.

It can also be used to disinfect the greenhouse by fumigation, and the commonly used fumigants are: Mianlong, chloropicrin and other agents. The fumigation method is to inject the fumigant into the soil with a soil syringe or soil disinfection machine, and cover the soil surface with a film and other substances in time, so that the toxic gases of the fumigant can spread in the soil, so as to achieve the purpose of killing germs.

Although the pesticide disinfection method is widely used, long-term use will damage the soil structure, cause environmental pollution, and reduce soil fertility, so it should be treated with caution, and it is best to combine other measures for soil disinfection.

2. Solar disinfection method. Solar disinfection is the cheapest and most environmentally friendly method. This method uses the high temperatures in summer (July and August) to kill pests and diseases with the help of solar energy.

When disinfection, first eliminate the remains of the diseased plants before stubble and thoroughly clean the greenhouse, and then turn the soil deep (apply organic fertilizer first, use 2 bags of Jiamei dividends per mu), then irrigate with water, and then fully cover the greenhouse soil with polyethylene plastic film, and then close and expose to the sun for 15-25 days, so that the soil temperature in the 10 cm soil is as high as 50-60 or more, which can effectively prevent soil-borne diseases such as wilt, bacterial wilt, soft rot, etc., and at the same time, high temperature can also kill nematodes and other eggs. However, the disadvantage of this method is that the effective soil layer for disinfection is only 10-15 cm below the surface, and the disease prevention effect of crops with deep roots is poor.

3. Hot water disinfection method. This method uses boilers and other equipment to heat water to more than 75, and then pour hot water into the soil to raise the soil temperature for disinfection. Before disinfection, more organic fertilizer should be applied, and then the soil should be turned deeply, and the soil should be leveled, and then drip irrigation pipes should be laid on the ground, and the ground should be sealed with good quality plastic film, and then hot water should be introduced.

The amount of water supplied varies depending on the quality of the soil, the outside temperature, and the type of cultivated crop. In general, when the disinfection range is 0-20 cm underground, 1 square meter of soil is filled with 100 kg of hot water; When the disinfection range is 0-30 cm, 1 square meter of soil is filled with 200 kg of hot water. This method has a significant effect on the prevention and control of soil-borne diseases, nematodes and weeds, with an effect of more than 95%.

At the same time, this method has the advantage of being able to be carried out at any time regardless of the season.

Society, life, aquaculture, agriculture, flowers, sterilization, many people are troubled by soil disinfection, 20 years of flower master to teach you, flower soil disinfection 3 tricks!