What is a soil disinfectant, what is the ingredient, and does it have any obvious effects?

What is a soil disinfectant? Therefore, the name suggests, of course, is a disinfectant that disinfects the soil, which is the first problem. The second question is what is the ingredient?

There are many ingredients, which can generally be divided into two types: chemical and non-chemical, and these two kinds are subdivided, and there are too many to list one by one. The effect must be there, and whether it is obvious or not depends on the actual situation of each product.

Below, I just found a product brief with a better beer for your reference.

Due to years of tillage, heavy cropping, improper fertilization, resulting in crop death, rotten roots aggravated year by year, commonly used pentachloronitrobenzene, dixone, sodium disulfon, chloropicrin, methyl bromide has produced serious resistance, drug resistance, extremely serious damage to crops soil-borne diseases gradually used ineffective. The advent of Bingze brand soil disinfectant solves the problem that crops cannot be cultivated due to heavy stubble and dead trees, and is a disinfectant that quickly kills soil-borne pathogens, with a disinfection depth of 20-40 cm and adjusts the soil pH value. Applies to:

Soil disinfection of greenhouses, greenhouses, plastic arch sheds, seedbeds, fields, open fields, etc., is a necessary sterilization and disinfectant for pollution-free crop production soil, which can be applied to.

Three. 7. Soil sterilization before planting and sterilization during planting of ginseng, magic, potato, watermelon, flowers, various types of fruits, vegetables and medicinal materials.

Soil-borne diseases are the most common and harmful in greenhouses, greenhouses and open fields, such as: root rot, wilt, bacterial wilt, seedling cataplexy, sclerotinia sclerotinia sclerotinia disease, vine blight, cotton blight, brown streak, anthrax, bacterial canker, medullary necrosis, blight, powdery mildew, gray mold and a variety of fungi and bacterial diseases.

Due to continuous farming, heavy stubble, and improper fertilization, the dead trees and rotten roots of crops are aggravated year by year, and the soil needs to be disinfected. Commonly used pentachloronitrobenzene, dixone, sodium disulfon, chloropicrin, methyl bromide, as well as quicklime, lime nitrogen. Applies to:

Soil disinfection in greenhouses, greenhouses, plastic arch sheds, seedbeds and fields, soil-borne diseases are the most common and harmful in greenhouses, greenhouses and open fields, such as: root rot, wilt, bacterial wilt, seedling cataplexy, sclerotinia sclerotinia sclerotinia blight, vine blight, cotton blight, brown streak, bacterial canker, medullary necrosis, blight, powdery mildew, gray mold and a variety of fungal and bacterial diseases.

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.

Pentachloronitrobenzene.

Pentachloronitrobenzene is a protective biocide. There is no inner f suction for the river. To be used for soil treatment and seed disinfection. It has a good control effect on diseases caused by Rhizoctonia spp.

Soil disinfection (also known as soil fumigation) is an emerging and efficient pest, disease and weed control technology in recent years, which has been widely used abroad. In the soil planted for many years, it is easy to breed a large number of harmful bacteria, fungi, viruses, as well as root-knot nematodes, underground pests, weeds, etc., which is difficult to control.

Soil disinfection can effectively kill a variety of pests in the soil, solve the control problems of heavy stubble and soil-borne diseases, nematodes, etc., and significantly improve the yield and quality of crops, which is an effective measure to ensure the quality and safety of agricultural products.

One of the common methods of disinfection of soil is to disinfect with chemicals.

Pesticides are applied to the soil before and after sowing with the aim of preventing the spread of seed carryover and soil-borne diseases. The main application methods are as follows.

1) Spraying or watering method. The agent is diluted to a certain concentration with water, sprayed on the surface of the soil with a sprayer, or directly poured into the soil, so that the liquid can penetrate into the deep soil and kill the germs in the soil. Spray application treatment soil is suitable for field, seedling nutrient soil, lawn renewal, etc.

The irrigation method is suitable for the irrigation of fruit trees, melons, eggplant crops and the disinfection of various crop seedbeds.

2) Poison soil method. The agent is first formulated into poison soil and then administered. The preparation method of toxic soil is to mix pesticides (emulsifiable concentrate, wettable powder) with fine soil with a certain humidity in proportion. The application methods of poisonous soil include furrow application, hole application and sprinkling application.

3) Fumigation. Use a soil syringe or soil disinfection machine to inject fumigant into the soil, and cover the soil surface with a film or other covering. In a closed or semi-closed facility, the toxic gases of the fumigant are diffused in the soil to kill germs.

After soil fumigation, sowing can only be done after the agent is fully dissipated, otherwise, it is easy to produce pesticide damage. Commonly used soil fumigation disinfectants are methyl bromide, formaldehyde, etc. This method has been applied in the planting of strawberries, watermelons, and vegetables in facility agriculture, as well as the seedbeds of seedlings and the planting of green lawns.

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Soil disinfection: a technology that efficiently and quickly kills germs and pests in the soil.

Different ways of soil disinfection are carried out according to different planting needs, and the soil disinfection of ginseng planted in the wild is relatively simple, but as you said, planting ginseng on the windowsill is definitely not possible.

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.

What are the chemicals commonly used in soil disinfection treatment? Answer: (1) Insecticides are:

5% chlorpyrifos granules 2000g 667m2; avermectin granules 2000g 667m2; 3% phosphine granules 3000g 667m2; (2) Fungicides are: 50% multibacterial silver spirit wettable powder 2000 grams 667m2; 80% Fumei double 2000g 667m2; 80% aluminum triethylphosphonate 1500g 667m2; 70% sodium dichlorina 2000g 667m2; 50% chlorobromoisocyanurate wettable powder 500 g 667m2.