Corn herbicides, what harm will they do to corn?

Corn herbicides.

It has a promoting or inhibiting effect on the growth of corn. Only the rational and scientific use of herbicides can achieve the ideal weeding effect, otherwise pesticide harm may occur and inhibit the growth of corn. The normal use of herbicides will not affect the soil, and only when the improper use of residual concentrations is too high will it cause problems such as soil pollution, soil quality degradation, etc.

The normal use of herbicides generally does not affect the soil, and the most commonly used herbicides are generally the following: amide herbicides, triazine herbicides, phenoxycarboxylic acid herbicides, sulfonylurea herbicides.

The use of herbicides can reduce the amount of pesticide residues and reduce the adverse impact on the ecological environment, while the use of herbicides can reduce the pollution to the environment and reduce the harm to crops. The use of herbicides is generally unlikely to have no effect on the growth of corn, but there are some things to pay attention to in corn fields that use herbicides. The type of herbicide should be determined according to the type of corn when using herbicides, and the general types of herbicides are less harmful to corn, but the types of herbicides should be determined according to the specific conditions of the corn field when selecting.

When using herbicides, herbicides should be selected with good weeding effect, so that farmers can effectively reduce the occurrence of corn field pests and diseases when using herbicides, reduce the harm to crops, herbicide concentration should be determined according to the actual situation of corn field, and the herbicide with the following general concentration will not cause pesticide damage when used, but the weeding effect may not be good when the concentration is too high.

Different herbicides are used in different ways, so consider the range of adaptation when using herbicides to avoid unnecessary waste. If the purpose of using herbicides is to control the growth of weeds, then the herbicide should be mixed with the soil. If the goal is to control the spread of weeds, then the herbicide should be well mixed with the soil to ensure that the mixed herbicide is fully effective.

It can affect the growth of maize, and it can affect the yield of maize, and there will also be widespread deaths, replanting will be required, and it will affect the soil.

There will be a certain impact, which may affect its growth, but this effect is relatively small, and the herbicides used now are relatively safe, so it can be used with confidence in general.

No, but some of it will remain in the soil, and there is a lot of nitrogen, phosphorus and potassium left over from corn fertilization.

It is fixed in the soil and adds residual herbicide.

Pesticide damage will make it difficult for corn roots to absorb nutrients and nutrients, and microbial agents and amino acids containing 2 billion bacteria can be used.

Foliar fertilizer to relieve pesticide damage and soil stress.

Corn-based fertilizer is mainly farmhouse fertilizer, which is mainly made of livestock and poultry manure through fermentation and decay, which is rich in microorganisms, has the characteristics of long fertilizer efficiency and sufficient nutrients, and has an obvious effect on the improvement of soil physical and chemical properties. In the application according to the soil fertility situation, generally apply about 2 tons of organic fertilizer per mu, and with 10 kg of ammonium fertilizer, 20 kg of phosphate fertilizer, and 6 kg of potassium fertilizer.

Seedling fertilizer is generally applied when the plant grows to 3-4 leaves after emergence. With the rapid growth of plants, the amount of fertilizer required is increasing, and the seedling fertilizer should follow the principle of early application and light application. When the corn enters the jointing stage, the temperature gradually rises.

During this period, the rhizomes and leaves of the plant are in a period of vigorous growth, and the development of the reproductive organs of the rhizomes and leaves requires a lot of nutrients.

At this time, it is necessary to fertilize skillfully, and grasp the amount of fertilizer and fertilization time to avoid the crazy growth of corn, which can play a role in strengthening the stalk and promoting the ear, and reduce the occurrence of empty stalks, baldness and lodging of corn. When the corn grows to 6-7 leaves, it is necessary to fertilize, and organic fertilizer can be applied per mu or strip with Yanwo high nitrogen water-soluble fertilizer. It should be noted that the amount of fertilizer can not be increased at will, which is easy to cause excessive vegetative growth, thereby affecting the reproductive growth of corn.

Reasonable and appropriate use of pesticides, no harm to corn when applying herbicides in corn fields. Improper use of post-emergence herbicides in corn can be somewhat harmful. Rational and scientific application of herbicides will not cause harm to corn.

Herbicides in corn fields are not harmful to corn and will not affect the yield and growth of corn.

If there is no harm, don't worry, because the herbicide only targets the grass. In fact, it does not have much impact on corn, so there is no need to worry about herbicide in corn fields. It's very safe.

The special herbicide will remove the crops of the corn passing department, so when the herbicide is applied in the corn field, there is no harm to the corn with this professional herbicide.

No matter what the place is, when the herbicide is applied, it will definitely have an effect, and if you are not careful, the corn seedlings will be knocked out together.

Excessive application of herbicides can cause pesticide damage to corn. There are effects, both pesticide damage and soil residues.

Too much herbicide can cause pesticide damage to corn and lead to reduced yields.

Excessive application of herbicides can be harmful to corn.

Excessive use of herbicides can be critical to corn.

Too many herbicides can cause pesticide damage to corn roots, and will also increase soil residues, resulting in reduced corn yields and soil damage.

How to manage corn seedlings?

1. Seedlings and seedlings.

Seedlings, seedling work is generally carried out in the 3 4 leaf stage, because the corn is in the "weaning period" around the 3 leaf stage, there should be good light conditions, if the seedling stage of the plant is overcrowded, the root system between the plants is staggered, there will be a phenomenon of competing for water and fertilizer. The yield of summer maize in the 5 9 leaf stage is 14 27 per mu compared with the 3 4 leaf stage, so the seedling and seedling work should be carried out as soon as possible.

2. Cultivating and weeding.

Corn seedling tillage can generally be carried out 2 3 times. Before the seedlings are short, the seedlings can be cultivated for the first time, and the seedlings should be avoided during the cultivation. The depth of cultivation should be 3 5 cm, the seedlings should be shallow, and the rows should be deep.

Although the cultivation will cut off some fine roots, it can promote the growth of new roots and control the vigorous growth of the aboveground parts.

3. Squatting seedlings to promote growth.

Squatting seedlings should start from the seedling stage to the end before jointing. Squatting seedlings should master the principle of "squatting black but not squatting, squatting fat but not squatting thin, squatting dry but not squatting wet". The sowing and growth conditions of interplanting corn are poor, and it is generally not suitable for squatting seedlings. We should do a good job in water and fertilizer management and promote the transformation of the weak into the strong.

4. Pest control.

There are many types of pests in the seedling stage of maize, especially summer maize. At present, the main pests that harm corn at the seedling stage are ground tigers, aphids, thrips, cotton bollworms, lamp moths, wheat straw flies, etc., and the insect situation should be detected and reported in time, and the pests should be prevented and controlled in time.

If you use too much herbicide, it will definitely have an impact on corn or other food crops, your herbicide power, it will stay in the soil, and you will lose weight if you plant any plant in the next crop, the effect of this herbicide. If the next plant is similar to the one your herbicide kills, it can lead to death.

Hello, the corn field can not use herbicides twice at all, if it is used twice, it will inevitably be excessive, and the corn will inevitably be damaged. Corn is damaged by herbicides, and the light ones can be sprayed with biological fungicides to relieve some of the pesticide damage, and there is no way to save the serious corn fields, which will inevitably cause a reduction in yield. Not only is the yield of corn reduced, but even the next crop of wheat will affect the emergence of seedlings and affect wheat yield.

Summary. Hello dear corn after spraying herbicides will not affect corn growth. 1.

Herbicides that are not harmful to corn were chosen, and there was no effect. As long as the pesticide is applied in accordance with the technical requirements, it will not be affected. Spraying herbicides in corn fields can affect the growth of corn.

According to the specification, it will not affect the growth of corn. 2.Generally, it will not affect the growth, and the herbicide should be carefully selected for sweet corn.

Follow the herbicide instructions for use and it won't. The right choice of herbicide, spraying method and concentration will not affect corn growth. As long as the fertilization is applied in accordance with the technical requirements, there is no effect.

3.Corn field herbicides are less harmful to corn than herbicides for deciduous weeds, and more harmful to corn than grasses, so they should be protected by protective covers when applying pesticides.

Hello dear corn after spraying herbicides will not affect corn growth. 1.Herbicides that are not harmful to corn were chosen, and there was no effect.

As long as the pesticide is applied in accordance with the technical requirements, it will not be affected. Spraying herbicides in corn fields can affect the growth of corn. According to the specification, it will not affect the growth of corn.

2.Generally, it will not affect the growth, and the herbicide should be carefully selected for sweet corn. Follow the herbicide instructions for use and it won't.

The right choice of herbicide, spraying method and concentration will not affect corn growth. As long as the fertilization is applied in accordance with the technical requirements, there is no effect. 3.

Corn field herbicides are less harmful to corn than herbicides for deciduous weeds, and more harmful to corn than grasses, so they should be protected by protective covers when applying pesticides.

I used nitrate, smoke, herbicides, and I found that the seedlings that had been sprayed were shorter than the seedlings that had not been sprayed, so it was not a pesticide damage.

According to your description, there is a drug damage, wait for a while to see. The concentration of spray is high, it will have a certain effect.

There is a pesticide but the leaves are not yellow, there are no other symptoms, if a bucket of water sprays 2 acres of land can you do 2 bottles of medicine.

It's been 6 days since I sprayed it today.

How much were you right before? It can be a little less than before.

Is there a difference between a single-head sprayer and a multi-head sprayer.

There must be a difference, the bulls are good. High dispersion rate.

I did an experiment with a single spray according to the medicine of the multi-head sprayer, and it seemed that the corn was shorter than the unsprayed one, but the leaves were not yellow and there were no other symptoms. Can I use a multi-head spray to press this ratio?

Yes, if the leaves are not yellow, it is not very harmful.

The dealer said that more nozzles hit 2 bottles on 2 acres of land, the problem is not big, it can be a little less, one and a half bottles like this.

Summary. Dear, hello, the corn is high and the herbicide is not harmful, and the corn field can be sprayed with herbicide twice. The first spraying of herbicides, you can choose to close the herbicide evenly sprayed, most of them will choose to use 72% metolachlor, 90% acetochlor, etc., corn post-emergence herbicides, generally sprayed in the seedling stage of corn 2 5 leaves, the damage to corn seedlings is very small, because corn in the 2 5 leaf stage, is the strongest herbicide resistance period, not easy to be damaged by spraying herbicides, commonly used mesotrione + nicosulfuron, compound spraying, can prevent and control corn field grass weeds, and annual broad-leaved weeds, Spraying weeds when they are two leaves and one heart to four leaves can improve the effect of weeding.

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Dear, hello, the corn is high and the herbicide is not harmful, and the corn field can be sprayed with herbicide twice. The first spraying of herbicides, you can choose to close the herbicide evenly spraying, most of them will choose to use 72% metolachlor, 90% ethyl grass contains amine deficiency and so on, corn post-emergence herbicides, generally sprayed in the seedling stage of corn 2 5 leaves, the damage to corn seedlings is very small, because corn in the 2 5 leaf stage, is the strongest herbicide resistance period, not easy to be damaged by spraying herbicides, commonly used mesotrione + nicosulfuron, compound spraying, can prevent and remove corn field grass weeds, and a matching posture of annual broad-leaved weeds, Spraying weeds when they are two leaves and one heart to four leaves can improve the effect of weeding.