What does paraquat do in the field?

Paraquat is also a very effective herbicide, so that the weeds have no way to compete with the crops for nutrients, so that the crops can grow better and more food can be harvested.

Paraquat kills bacteria and insects. After dilution, spraying on those weeds can play a role in extermination. It will also prevent those pests and diseases. It can make the plant grow better.

Paraquat is fast at weeding and is very rain-tolerant, and with no-tillage technology, paraquat can also make crops profitable overall, protect crops, increase crop yields, and more.

It can play a very good role in weeding, and the most important thing is that there are often a lot of weeds when planting crops, which will affect the growth of crops, so pesticides can be used.

First of all, it can eliminate weeds in the farmland without harming the crops, and it can also kill some insect pests, and the weeding speed is very fast, the effect is very good, and it will not cause environmental pollution.

It is a fast-acting contact killing, biocidal herbicide, its lethality is particularly strong, and it also contains a lot of toxins.

The principle of paraquat is that the photoreaction phase of chloroplasts is undergoing photosynthesis. Paraquat is a contact herbicide applied to grass leaves, and it works by hindering the photosynthesis of plants by causing the green parts of any plant that comes into contact with it, acting in sunlight.

Characteristics of paraquatParaquat penetrates the foliage immediately after application. In strong light and high humidity environments, this absorption rate is also increased. Like other active ingredients, paraquat must be mixed with water and other substances to become an effective product.

Paraquat is a contact killing quaternary amine salt herbicide, which is fast-acting, has a contact killing effect and a certain systemic effect.

Weeding effectiveness is weather-dependent. The effect of the medicine comes quickly on sunny days, and the weeds begin to wither 24 hours after application, and the effect of the medicine comes more slowly on cloudy days, but the weeds have more time to absorb the effect and control the weeds more thoroughly. When you see the green part of the plant, you will kill it, regardless of weeds and dealers, and sweep it away.

The pesticide falls into the soil and becomes ineffective quickly, so crops can be planted within a short time after application.

The above content refers to today's headlines - how terrible is it to ingest paraquat by mistake.

Paraquat principle: The human stomach contains a large amount of gastric acid, so paraquat is highly active in the stomach, can be quickly absorbed by the body, quickly accumulate in the lungs, damage lung cells, and eventually the body will die of hypoxia. This characteristic means that paraquat has caused serious damage to the human body by the time it is taken to the hospital.

Clinical experience suggests that swallowing paraquat less than 20 mg kg (body weight) is asymptomatic or has gastrointestinal symptoms, and generally recovers; 20 At 40 mg kg, the gastrointestinal tract, kidneys, liver, and lungs are damaged, and the lungs are fibrotic, and most of them will die, but it can be delayed for 1 2 weeks; More than 40 mg kg, the gastrointestinal tract, kidneys, liver, and lungs were severely damaged, the development rate was rapid, and obvious ulcers appeared in the mouth, and death occurred within 1 7 days.

Metabolic paraquat can be inhaled into the human body through the gastrointestinal tract and** respiratory tract. It is absorbed more slowly in the intestine. After oral toxic dose, it can be distributed in all tissues and organs of the whole body within 6 18 h, and the amount in all important organs and tissues can reach the lethal amount, with the highest concentration in lung and skeletal muscle.

Most of the paraquat that enters the body is eliminated by the kidneys and urine within 5 days.

Mechanism of Poisoning:

Paraquat poisoning is a multi-layered, multi-mechanism action that can cause multi-organ damage in the human body, and patients with very high doses of paraquat often die of multi-organ failure in a short period of time, and if moderate or severe poisoning can survive the acute phase, irreversible pulmonary fibrosis will develop later, and more people will die from pulmonary failure in the later stage.

However, the detailed mechanism of toxicity has not been fully elucidated, and it is generally believed that it is mainly related to the reduction of lipid hydrogen peroxide and glutinous glycone content produced by the excessive lipid peroxidation reaction of reactive oxygen species.

When many farmers plant crops, in order to make their crops grow better, or to be able to avoid weeding their crops, they will generally apply some pesticides to their crops to inhibit the growth of weeds in the field. Paraquat is a very popular pesticide and has been widely used. With pesticides such as paraquat, farmers can easily eliminate weeds in their fields to ensure crop yields.

However, paraquat is a highly toxic pesticide and must be used with great care. So what does the pesticide paraquat do? How should it be proportioned?

Here's what I think:

1. The pesticide paraquat is effective in eliminating weeds in farmland.

Paraquat is a pesticide that causes green leafy grass to die in a short period of time, and many farmers use paraquat in their fields to remove the strain of weeding their fields and to increase crop yields. In this way, it can save time, effort and ensure the yield of crops.

2. The ratio of the pesticide paraquat in use.

When paraquat is used, different crops use different ratios. In the case of orchards, agriculture and forestry, in the early stage of weed growth, 100-200 ml of medicine will be used per mu, mixed with 25 kg of water. If it is used in the field of crops, it is necessary to use 75-200 ml of agent per mu, mix it with 25 kg of water, and then spray it.

3. Paraquat has been banned.

Paraquat used to be a very popular pesticide used by many farmers, but because it is so harmful and easy to injure humans, many countries have banned its use. China also banned paraquat in 2016.

Paraquat is a highly effective pesticide that kills weeds and is very effective. When used, it is generally configured according to 100-200 ml of water per mu mixed with 25 kg of water, evenly mixed, and sprayed on the stems and leaves of weeds.

Paraquat is a rapid herbicide that is quickly absorbed by the green tissues of plants and causes them to die

Paraquat is extremely toxic to humans, and there is no specific antidote, and the mortality rate of oral poisoning can reach more than 90%. The drug has a strong ability to cause pulmonary fibrosis, and some patients can continue to develop lung lesions after the acute poisoning symptoms are controlled, and pulmonary fibrosis often occurs on the 5th 9th day and reaches a peak in 2 3 weeks. Eventually, he died of pulmonary fibrosis and respiratory failure.

Paraquat, chemically known as 1-1-dimethyl-4-bipyridine cationic salt, is a rapid herbicide with contact killing and systemic effects. It can be quickly absorbed by the green tissues of plants, causing them to die. It has no effect on non-green organizations.

It quickly binds to the soil in the soil and passivates it, and is ineffective on plant roots and perennial underground stems and roots.

Storage:

1. Store in the designated area of the special warehouse for pesticides, preferably without sewers.

2. Keep away from fire and heat sources.

3. Prevent direct sunlight.

kg plastic bag or 10 kg kraft paper bag.

5. Store in a cool and dry place.

6. According to the organic storage and transportation of drugs.

7. Make sure the packaging container is in good condition.

8. It should be stored separately from oxidants, alkalis, and edible chemical raw materials.

9. It shall not be transported with food and feed.

10. Do not mix storage and transportation; When handling, it is necessary to load and unload lightly to prevent damage to the packaging and containers; Pay attention to personal protection in sub-packing and handling operations.

The above content refers to the encyclopedia paraquat.