What is the nozzle on the sprayer for post weeding corn seedlings? What should I pay attention to?

After the weeding of corn seedlings, spray the herbicide with a sprayer. The total corn planting area of the contracted households is relatively large, but they also use sprayers to spray pesticides and continue to spray for several days. There are also some corn growers who use spraying machines, small tractor heads or three-horse carts as the driving force of the pump, the water level is prepared in advance, generally multiple spray heads, and the sprinkler is actually a single spray head in the sprayer, although the spraying area is large, but the water consumption is particularly large, and the actual operation is a little inconvenient.

Installing a spray nozzle, most of which are sprayed by manual pressurization, no matter what kind of small plot, only need to spray herbicide, under normal circumstances, it is all upside down, but nowadays many farmers spray herbicides, and immediately spray and move forward. The factor of inversion is that after the herbicide is stained by the soles of the shoes, it harms the actual effect of spraying weedicide, and the herbicide application lasts for many years, and most of the small areas do not have too many weeds. The conical sprinkler is generally sprayed like a cone, and this conical sprinkler is generally used to spray pesticides and insects.

The fan-shaped nozzle is like a fan-type when it is sprayed out, and this fan-shaped nozzle is more suitable for spraying herbicides.

Therefore, if it is a manual operation of weeding, it is recommended to choose a fan-shaped sprinkler. If you are a large and medium-sized industrialized farm, with thousands of plants, then you choose to refer to mechanical automation. Generally, it is recommended that you go directly to a specialized construction engineering company or equipment manufacturer.

Fill in the total area of your field, the size of your business, and the type of crop information, so that they can make you clearly propose an effective technical and professional plan, including the right sprinkler for you! The amount of spray under a single spray head is relatively limited, and those who have to spray herbicides are slower. In fact, although it is related to the amount of medicine in the sprayer nozzle, it is more important to spray in time, and can not be sprayed to corn seedlings, for some weeds that have already grown and developed, especially adult old grass, must be taken care of alone, in fact, it is to take the nozzle to spray on the weeds for a while independently, in order to achieve a clear actual effect of weeding, so the single nozzle sprayer sprays the herbicide for a longer time.

Spraying herbicides in the corn field, the actual effect of one spray and one nozzle or one spray and two nozzles has long been good, and the total area and pesticide power of spraying are more ensured, and you can go a little slower. I think the manual increase of the sprayer is not suitable for the application of one spray three nozzles, after all, the long-term continuous pressure of the arm is a little unbearable, one spray three nozzles are more suitable for the application of electric sprayers, but due to the large amount of medicine used at night by one spray and three nozzles, it must act quickly, otherwise the dose per unit area will be expanded, and it will inevitably damage the corn seedlings.

After corn seedlings, weeding can be done with a relatively small nozzle on the sprayer, and be careful not to spray it on the body.

Most of them use a single nozzle, so you need to pay attention to safety issues, pay attention to wearing a mask when using, and protect your own **.

Corn seedlings are generally sprayed with a general spray nozzle, and the problem to be noted is that the proportion of water substances and medicine in it must be done, otherwise the concentration is too high and the corn is not good.

Try not to do that.

After the corn is sown, herbicides are applied immediately, so that after the corn seedlings emerge, even if there are sporadic grasses coming out, the corn seedlings cannot be covered, and the corn seedlings can grow quickly.

If there is still grass at this time, it is recommended to apply herbicide again after 5 to 6 leaves, so that it will not hit the corn cob and will not delay the growth of corn.

I have seen corn just emerge with herbicide, corn seedlings yellow, a long time to slow down, delay growth.

Glad for your question!

Excessive use of corn post-emergence herbicides will cause pesticide damage to corn, especially corn field herbicides containing nicosulfuron.

If it is found in time, it can be used to rinse the corn heart leaves with water, and spray liquid nitrogen fertilizer in time to stabilize the harvest + brassinolide, which can effectively prevent the occurrence of corn pesticide damage.

Hope mine helps you!

Hello, corn has just emerged and is too young and tender, so it is not recommended to use herbicides.

Corn in the whole growth cycle of nitrogen fertilizer demand is larger, the demand for potassium and phosphorus fertilizer is second, but also need the appropriate amount of mineral element supply, fertilization will be nitrogen, phosphorus and potassium fertilizer application ratio control at about 1, corn yield is higher, in corn sowing attention to apply seed fertilizer, so that the seed seedlings and provide the nutrients required by the seedlings, at the same time during the corn seedlings should be applied fast-acting fertilizer as seed fertilizer, it is recommended to use sea meal fertile water-soluble fertilizer, low salt soft nutrition, quality improvement and anti-premature aging, good effect.

Yes! But there are a few things to be aware of:

1. Avoid high temperatures, and it is best to spray after 5 p.m.;

2. No heavy spraying and leakage spraying;

3. Choose regular corn field herbicides;

Glad for your question!

There are many types of herbicide damage in corn fields.

1. The corn heart leaves are twisted and deformed.

After manually peeling off the curly heart leaves, spray liquid nitrogen fertilizer to stabilize the harvest + brassinolide + gibberellic acid.

2. Yellowing of corn heart leaves.

Liquid nitrogen fertilizer can be sprayed to stabilize the harvest + brassinolide + gibberellic acid to help relieve the pesticide damage.

3. Yellowing and wilting of corn heart leaves.

This kind of drug harm is more serious. It is recommended to destroy and replant other crops.

The clearer you describe the drug damage, the better you can help you!

Corn post-emergence herbicide spray on corn after pesticide damage, this is a normal phenomenon, generally 5 to 7 days after recovery, if the recovery is slow, spray foliar fertilizer to help detoxification.

If it is found in time, it can be alleviated by water, and if it has been critical, it is necessary to hit foliar fertilizer twice for mediation.

<>1. Rational use of drugs according to corn varieties: some corn varieties are sensitive to some components of herbicides, so they cannot be blindly selected when choosing herbicides, and they need to choose the right agents according to corn varieties. 2. Time of use:

It is advisable to use herbicides when weeds are more sensitive to herbicides and corn has the strongest tolerance to herbicides. 3. Reasonable mixing: In order to avoid weeds from developing drug resistance, it is recommended to rotate 2-3 kinds of pesticides reasonably.

1. Precautions for the use of corn herbicides

1. Rational use of drugs according to corn varieties.

At present, some ingredients contained in some herbicides are sensitive to some corn, so when choosing herbicides, you need to read the product instructions in detail, and you can not choose pesticides that are sensitive to corn to avoid pesticide damage.

2. Time of use:

It is usually recommended to spray the soil before sowing or before emergence after sowing to reduce the chance of pesticide damage.

3. Reasonable mixing.

If the same herbicide is used for a long time, weeds will develop resistance, so it is recommended to mix 2-3 herbicides reasonably to delay the development of weed resistance.

4. Dosage.

The dosage of the agent should be strictly implemented according to the instructions, and the dosage should not be reduced or enhanced at will, so as to avoid the situation that the prevention effect is not good or the drug damage occurs.

5. Spraying technology.

1) Before spraying, it is necessary to do a good job of protection, and check whether the medicine can be used normally before spraying, and it is necessary to spray evenly when working.

2) After spraying, you need to clean your face and hands, and clean your equipment in time.

2. Can corn be herbicide applied when it has just emerged?

1. Herbicides can not be used when corn seedlings emerge, because corn seedlings are very tender at this time, if herbicides are sprayed, it will cause harm to corn seedlings, so if weeding is required, it is recommended to use nicosulfuron, nicochlorine, atrazine and other agents at the 3-5 leaf stage of corn seedlings for pre-juvenile control, it should be noted that because some corn varieties are sensitive to nicosulfuron, such as sweet corn and waxy corn, it is necessary to use herbicides according to the variety of corn.

2. When applying herbicides to corn, it is also necessary to pay attention to the time period of use, which can not be used during the high temperature period at noon, and can not be used when the temperature exceeds 35, and can generally be applied before 9-10 o'clock in the morning or after 4 o'clock in the afternoon to ensure that the weather is clear and windless.

3. It should be noted that the corn treated with organophosphorus drugs is more sensitive to post-emergence herbicides, so these two drugs generally need to be used with an interval of 7 days, and the sprayer sprayed with organophosphorus pesticides needs to be thoroughly cleaned before medication to avoid the two drugs mixing together to cause harm to corn.