Which herbicide should be used when planting cotton fields?

There are many options for this, and the range is also relatively wide, for example, you can choose this one butachlor. Buchlor is generally good for weeding, you can choose to weed before germination, for rice or direct sowing, for those weeds, Huoye weeds and river family has a good effect. This pesticide it also has a great benefit, the performance of weeding is quite stable, there is no problem for sun exposure, because its boiling point has reached more than 190 degrees, and the decomposition of this pesticide should reach more than 200 degrees, and the general sunlight will not have much effect, of course, it is best to avoid rainy days when spraying this pesticide, once it rains, it will be a big trouble.

When choosing this pesticide for weeding, it is necessary to dilute it to a certain extent, generally speaking, different companies produce certain instructions, 300 ml for this 50 kg of water for spray weeding, this dose should be within the standard range, no need to deliberately increase this agent, after all, the effect is the same, it will just be a waste of money. Of course, when spraying pesticides, you must pay attention to protect yourself to avoid this poisoning. <>

Of course, you can also choose other herbicides, such as this diuron and dilometre. These herbicides have a very good stability, generally speaking, for those weeds killing rate is very thorough spraying on the first day, basically the third day will appear wilted or even yellowing, if there are more weeds, you can also choose to use this glyphosate, this pesticide also has a great weeding effect, but these pesticides are basically sprayed with water. <>

If you don't know which one to use, you can go to this pesticide store for consultation, basically the owner will recommend it to you, after all, they are professional, they will ask you which kind of crop you plant, and then they will recommend which pesticide you use.

When weeding the soil in cotton fields, herbicides such as flulelin, lasso, acetochlor, and butachlor can be selected; When weeding stems and leaves, herbicides such as glyphosate can be selected to kill steadily and steadily, and the specific amount of use should be increased or decreased in a timely manner with reference to the number of weeds in the field.

You can use a herbicide, a herbicide, a gram herbicide, or a glyphosate herbicide.

Herbicides with high safety should be used, such as flulelin, lasso, and acetochlor, which are relatively easy to use and have a high level of safety.

This is a good choice, you can also choose other types, be sure to follow the instructions for proportioning.

Dear, I have inquired the results for you: The herbicides that do not hurt cotton in cotton fields are: 1. Carbamates:

It has a strong weeding effect and is suitable for weeding in cotton fields, but it will have certain toxicity to the human body. 2. Propiate alcohols: can effectively inhibit the growth of herbaceous plants, plant inhibitors, safe, reliable and non-toxic, but the dose of base fertilizer should be applied at the same time as the registered dose of herbicides.

3. Nitrosaureas: decompose organic matter in the soil to generate heat, thereby increasing soil temperature, killing plants on the total surface, which can effectively inhibit the growth of plants and can be used for weeding in cotton fields, but the dose of nitrosoureas is larger and has certain toxicity to the human body. 4. Methyl nitrile Hu stove:

It can inhibit the growth of plants, has strong toxicity, and has good safety, but the amount of pesticide application should also be controlled in order to keep cotton from being damaged. 5. Methylcaprylic acid: It can inhibit the growth of planting pants and pants, do not damage cotton, and is used for weeding in cotton fields.

In addition, in order to improve the weeding effect of cotton fields, organic weeding technology can also be adopted, and plant growth regulators, soil bacteria-mediated regulation, pesticide resistance gene detection and crop protection technology can be used to comprehensively control weeds.

Hello dear! Glad you questioned: Hello:

At present, there are some herbicides on the market that can be used for weeding in cotton fields without harming cotton, such as:1Oxidation, glufosinate:

These two chemically synthesized herbicides can inhibit the growth of weeds, and basically do not produce *** for cotton plants, which can better control the weeds in cotton fields. 2.Volatile oils:

Volatile oil herbicides are mainly used to dissolve or dehydrate weeds to achieve the effect of weeding, which is more effective for small weeds and less effective for large weeds. 3.Biological herbicides:

At present, there are some herbicides on the market that are produced from natural materials such as microorganisms and plants, which are basically harmless to cotton, but their herbicidal effect is not as strong as that of chemically synthesized herbicides. It should be noted that any chemically synthesized herbicide will have a certain degree of impact on the environment, so it should be operated in strict accordance with the instructions to avoid adverse effects on the environment.

One is a weed bud before the closed type.

The closed time of the seedling stage is set in front of the cover film after planting and filling the cotton seedling stage, and the types and usage of herbicides can be used: per 667 square meters, you can use 90 Ox (acetochlor) EC 40ml 50ml, or 50 acetochlor EC 75ml 9oml, or 48 steel cable (alachlor) EC 150ml 200ml, or 72 dol EC 100ml 200ml, or 24 Goll (ethoxyflufen) 12ml to 18ml water sprayer.

The streetside closed type depends on the type of cotton field, and the grass is dense in the winter fallow field, and glyphosate or paraquat herbicides should be used to control winter weeds 20 days and 30 days before cotton planting, and the above pre-bud herbicides should be mixed and applied. For cotton fields with pre-stubble plants, immediately after the pre-stubble crops are obtained, the herbicide above the pre-bud plus 20 paraquat (e.g., no shadow, a fire) herbicide is mixed and sprayed, and it is best not to use glyphosate herbicides.

The second kill is solved after the leaf stem of the weed seedling.

In the cotton seedling stage or streetside where the pre-bud herbicide has not been applied or the pre-bud processing effect is not satisfactory in the drought temperature, when the growth and development of weeds reaches the 3-leaf stage and 6-leaf stage, the leaf stem solution is carried out to hoe the weed. At the seedling stage or where the height of cotton seedlings is less than 35 cm, only the selective herbicide for cotton safety should be used to hoe the weeds.

Types and usage: 5 emulsifiable concentrate 4oml 60ml per 667 square meters, or 10 8 high-efficiency caedinable emulsifiable concentrate 20ml 30ml, or 15 emulsifiable concentrate 4oml flail ml to water 15kg 30kg sprayer. Cotton bud stage and plant height of about 35 cm planting cotton field hoeing technology:

Glyphosate herbicides were used to carry out row and row fixed sprayer hoeing, and 41 glyphosate liquid (Roundup, Nongwang, etc.) looml 200ml or 10 bridge glyphosate liquid 450ml 800ml per 667 square meters.

When spraying, a protective cover should be added to the printer nozzle, and the printer nozzle should be lowered to prevent the fertilizer from drifting to the cotton leaves. For every 667 square meters, use 5 refined grass gram emulsifiable concentrate 60ml 80ml + 90 Henais emulsifiable concentrate 60ml, or 5 refined grass gram emulsifiable concentrate 60ml 80ml plus 10 ethylcarboxyfluorfen 20ml 30ml to water 30kg sprayer. At this stage, paraquat herbicides should be used with caution, otherwise the seedlings are very susceptible to fertilizer damage.

The three supplements are the supplemental application of herbicides at the flowering boll stage of cotton streets.

For the sporadic weeds in the field, the innate herbicide glyphosate can be used, and the herbicide is applied in the form of spot and piece fusion, and the usage method is the same as the use of the budding stage, and the amount of use depends on the vertical size of the total area.

There are three principles of herbicide in cotton field to remove the difference in grass, and the rock model is one letter, two kills, and three supplements.

One is the closure of weeds before budding, the second is the treatment of stems and leaves after weed seedlings, and the first three supplements of jujube are the supplemental herbicides at the flowering and boll stage of cotton fields.

Weed pre-bud sealing, weed seedling after stem and leaf treatment, cotton field flowering boll stage supplemental herbicide, these three are the three principles.

Be sure to choose some suitable herbicides, and you should also pay attention to the time of weeding, and you should also pay attention to the amount of herbicides.

Precautions for herbicide spraying in cotton fields

1. Make sure that the dosage of each nozzle is consistent. Avoid uneven dosage of each nozzle, or uneven two sides of a nozzle, resulting in local or interlaced damage.

2. The spraying valve must be closed when the spraying is stopped.

3. The herbicide that needs to be mixed generally has the characteristics of volatile and easy photolysis, and after spraying the rake and mixing the soil, there are still a small number of drugs left on the surface, which will be reduced due to sun exposure; Therefore, the time of spraying herbicide is close to the sowing period and the weeding effect is good.

4. The technology of spraying herbicides on the film after sowing is not very mature. Because the specifications of plastic film or herbicide are not very standardized, it is not suitable to be used blindly in production without testing; Only those who are confident in this technology and its products can apply it. Once used improperly, or unsatisfactory weeding, or pesticide damage, it can cause losses.

In the same way, the "medicinal film" should not be blindly used without testing and being uncertain.

5. Use in strict accordance with the required dose. Herbicides are explained in terms of usage, and they should be applied in strict accordance with the required dose, and the dosage cannot be increased at will to prevent pesticide damage; Especially in thin sandy areas, a lower dose should be used. Some explanatory data areas are expressed in hectares or square meters, which should be accurately converted into mu; Some instructions are the dosage per mu of active ingredient, which should be converted according to the content of active ingredient to prevent the dosage from being too small and failing to achieve the purpose of weeding.

Fertile soils are less sensitive to pesticide damage.

6. Avoid heavy spraying or missing spraying. If there is residual liquid after spraying, do not spray it on the grass on the edge of the ground to prevent local damage; If the mechanical spraying is not enough for a width, the rest should be manually sprayed to prevent re-spraying or missing spraying.

7. The amount of medication per mu refers to the actual area. If you only spray under the film and do not spray between the films, the area between the films should be subtracted to calculate the amount per mu to prevent excessive spraying.

8. If the drug has been used in sufficient amount before sowing cotton, herbicides can not be sprayed under the film during sowing to prevent pesticide damage.

9. Perennial root weeds are a major problem in weeding cotton fields, which are often difficult to eliminate, not only employing more labor, but also suffering from weeds. If the ground temperature rises before sowing and the grass has emerged and grown leaves, the grass can be sprayed with herbicide before sowing to kill the grass to remove the future troubles, and then sowing cotton. Although spraying twice increases the cost, it can greatly reduce the weeding labor in the cotton field during the growing season, and it is beneficial to the growth of cotton.

Glyphosate is advisable. Because glyphosate is a systemic conductive broad-spectrum herbicide, sprayed on grass leaves, it can conduct the drug to the underground rhizome and kill weeds, so glyphosate can not only control annual weeds, but also treat perennial weeds such as thatch, reed, triangular grass, and field spin flower, while paraquat is ineffective against perennial weeds (only the aboveground part can be killed), in places where there are many such weeds, it is better to sow cotton a few days late, and kill it first after the grass grows leaves, so that the cotton field can take the initiative in weeding all year round.

First of all, we should prescribe the right medicine, we must choose the right herbicide, and we should also remove the properties of the herbicide, and at the same time, we should also maintain a suitable temperature, ensure sufficient light, do not spray in heavy rain or windy weather, and wear protective clothing in the process of spraying to avoid contact.

First of all, it is necessary to choose the right angle and the right distance, and then we must pay attention to the appropriate distance, we also need to consider the environmental factors, we must pay attention to the temperature, and we must pay attention to the water temperature, and then we also need to pay attention to personal protection.

A common herbicide in cotton fields is pendimethalin, which can be used in conjunction with other uses, spraying onto the field rather than directly on cotton.