Let s talk about the safety tips for planting wheat and using herbicides?

It is forbidden to use drugs in windy and bad weather: the use of herbicides in windy weather is easy to cause herbicides to drift, one is that the weeding effect cannot be achieved, and the other is that the herbicides may be blown to other crops, which is easy to cause pesticide damage. Other bad weather such as frost, rain and snow, cold snaps, etc. can not be sprayed, and more attention should be paid to the weather when using medicine.

Herbicides should be used in the early stage of wheat growth, and the amount should not be added or decreased to prevent damage to wheat seedlings.

Grasp the wheat weed-prone period and use the medicine rationally. Weeds generally begin to occur two to three weeks after wheat is planted, with some dry years occurring later. When the weeds are relatively small, it is easy to prevent, and when the weeds are large, it is not easy to control, and increasing the dosage may have an impact on wheat.

In the regreening stage of wheat, weeds grow rapidly, and should be controlled in advance before jointing. It is best to apply the drug after rejuvenation and during the rising period.

Correct use of dosage and water. In fact, this is the most basic question and a cliché, but it should be emphasized. First, farmers have the inertia of using drugs, for example, in order to ensure the effect of pesticides and fungicides, many doses of preparations should be added outside the range of technical recommendations, but herbicides cannot do this, the reason is very simple, pests and crops are two species, and wheat and weeds are closely related, easy to produce pesticide damage; The second is the problem of water consumption, generally all herbicides will require two buckets of water (that is, about 60 catties), in practice, many farmers like to use a bucket of water (about 30 catties) or less, just imagine, this can ensure the efficacy.

After the emergence of wheat, usually wheat seedlings are at the 4 5 leaf stage, and weeds are at the 2 4 leaf stage, which is the best time to use herbicides to control weeds. After the selection of herbicides, the specific operation, the use of herbicide methods is very critical, not only to use less dosage, to maximize the weeding effect, but also to be safe and reliable for wheat, no pesticide damage. When the specific operation, it is better to choose the weather, to choose a sunny day, a windless day, and a temperature above 10.

The soil moisture is suitable, neither dry nor waterlogged, so prepare a week in advance. The herbicide dilution must be diluted twice to make the agent evenly diluted and maximize the efficacy. When using herbicides, special protective agents can be added to prevent and avoid damage to wheat caused by improper use of drugs or unsuitable environmental conditions during weeding.

According to the properties of herbicides, foaming agents such as laundry detergents can be added to enhance the adhesion of weeds to the liquid medicine and improve the efficacy. When spraying, be sure to be careful and careful, do not omit, do not repeat, and spray evenly.

Do not weed wheat before 4 leaves and after jointing: wheat is delicate before 4 leaves, and the immunity is poor, and spraying at this time is easy to produce pesticide damage; After jointing, the wheat enters the booting stage, and the drug is easy to cause the malformation or failure of the wheat ear, which leads to the reduction of yield.

Wheat cultivation in hilly areas is different from the large-scale cultivation of wheat in the northwest and northeast, and it is scattered and even interspersed with other crops such as vegetables, fruit trees, and other crops. Then we need to pay more attention to a few points when using herbicides. First of all, it is important to be targeted when choosing herbicides.

Soil quality, temperature, wind and time of day, as well as any impact on crops other than wheat and weeds, are taken into account. Secondly, when using, the planting range of such a small area is basically manual operation, so we should wear protective clothing to isolate the direct contact between the liquid and the human body. In addition, the amount of liquid medicine must be configured according to the standard configuration of the instructions, and cannot be increased or decreased at will.

Finally, when spraying the solution, try to target the weeds and lower the outlet of the solution to achieve the best use effect, reduce waste and impact on other crops. After the herbicide is sprayed, the utensils should be cleaned, and the remaining unused liquid should be properly stored.

It must be prepared by the secondary dilution method: some people directly introduce the herbicide into the sprayer for convenience, and start spraying it with casual stirring, which is incorrect. This will likely result in a small portion of the herbicide at the bottom of the sprayer not completely dissolving, resulting in waste.

Strictly follow the herbicide instructions: the herbicide should be used in strict accordance with the instructions, and the dosage should not be increased or decreased at will.

Always remember to wear a mask when using herbicides, and it's best to keep it wet. This prevents pesticides from being inhaled into the lungs and causing damage to the body.

1. Choose the right time to use. Generally, herbicides will clearly state the most suitable time for pesticide spraying, too early or too late will affect the growth of wheat.

2. Choose the right amount. This is the most important thing, the general herbicide will also be clearly written, too little dosage, will cause the grass not to be removed, too much will be used and the wheat will be removed, so the amount must be controlled.

3. Do not omit or repeat when spraying, and do not contaminate your eyes and mouth.

When using herbicides, be sure to wear leather long-sleeved pants, and never wear short-sleeved shorts, which can easily pass **poisoning.

Spraying should be uniform: when spraying herbicides, we must spray evenly, do not miss spraying or spray less, otherwise the weeds will be unevenly treated, and the control effect will not be good, and do not re-spray, otherwise it is easy to cause pesticide damage.

Once the pesticide damage occurs, not only the yield does not increase, but also eventually causes a reduction in yield (serious direct failure), you can control in turn, find the cause, and then start remediation, the commonly used remedial methods are the following 4 kinds:

1. Hit more water, this method is suitable for early detection, such as you just applied herbicide this morning.

The next day, it was found that there was a problem with the wheat, or on the day of spraying, it was found that it was not right, so it was quickly sprayed with water, which could be more to dilute the concentration of the liquid and achieve the purpose of reducing the harm. In addition, the general wheat herbicides are acidic, and some lime can also be added appropriately to neutralize and neutralize, not excessive.

2. Spray foliar fertilizer, and the first one, after the water is finished, you can spray some good foliar fertilizer to increase some elements necessary for the growth of wheat and reduce the harm caused by pesticide damage.

3. Plant growth regulators.

It is commonly known as the "antidote", is there any effect? It also depends on the degree of harm caused by the wheat pesticide, if the symptoms are mild, you can spray some, if the pesticide damage is serious, it is not much better, the common gibberellin.

4. Timely destruction and replanting, which is mainly aimed at the more serious harm, that is, the wheat in the field has basically died, in this case, destroy it in time, replant other crops and reduce losses.

Causes herbicide damage to wheat.

2. The use temperature and period are wrong, and the wheat herbicide should avoid low temperature weather, generally between 10 noon and 15 o'clock in the afternoon, during this time period, the temperature is relatively high, and at the same time, it is necessary to choose sunny weather to spray, because spraying at low temperature is easy to cause pesticide damage.

3. The drift of the liquid medicine is normal when you apply the medicine yourself, but the medicine that the neighbor plays drifts to your own field due to wind or other reasons, which sometimes causes drug damage.

4. The herbicide is mixed unevenly, resulting in areas with high concentration and low concentration, such as in a spraying bucket, because it is not shaken evenly, the high concentration produces pesticide damage, and the grass with low concentration is not killed.

5. If there is a problem with the herbicide, the content and composition of the herbicide you buy will also cause pesticide damage.

According to the type of weed, the right agent is selected. Different agents have different effects on weeds, and if the agents are not right, the effect will definitely not be good. Wild wheat in the field, grass weeds such as wheat Niang, etc., should be used in the field of Shima or methyl disulfuron-methyl or azolinoline or fluzosulfuron-Daoneng, alkyne oxalin is an aromatic phenoxypropionic acid herbicide.

It is mainly used in wheat fields dominated by wild oats, kanmai niang, ryegrass, common early maturing grass, and dogtail grass. However, the effect of the drug is slightly slower, and the mixability is better.

Returning to wheat herbicides, what do you know?

There are many kinds of weeds in the <> wheat field, and some of them are still difficult to eradicate, such as sowing Artemisia annua. If a herbicide with a single effect is used, the cost is higher. At the same time, the weed control of wheat field should not only consider the weeding effect, whether it has an impact on wheat, and the residue problem can effectively kill broad-leaved weeds in wheat field, and apply pesticides before the 4-5 leaf stage of wheat to jointing, with a dosage of 150-180 grams per hectare, and 450-670 kg of spray with water.

In areas where resistance has developed, the dose should be increased or other agents should be used.

The single-dose herbicide products suitable for soil sealing treatment in wheat fields mainly include green melon, isoproturon, acetochlor, benzsulfuron, thiensulfuron, etc. Among them, green melon, isoproteron, acetochlor and other drugs are mainly used to control most kinds of grasses weeds, benzsulfuron, first of all, from a simple situation, broad-leaved weeds, generally dryland wheat is mainly broad-leaved grass, the main weeds are pig seedlings, cattle chickweed, camellia, sowing Artemisia and so on. The main drugs are diflusulam, azolone, chlorofluoropyroxyacetic acid, dimethyltetrachloride and so on.

Common grasses include wild oats, knotweeds, finch wheat, multiflora ryegrass, calamus, early maturing grass and hard grass. Common herbicides are alkynyl ester, isoproturon, methyl disulfuron, zolinoline and pyrazulam, which focus on different phases of grass. Closed weeding is to spray weeds after wheat sowing and before weeds emerge to control weeds from not coming out again.

Post-seedling weeding is to spray herbicide on the weeds to kill the weeds after they are unearthed.

There are many types of wheat herbicides, the common ones are dimethyldisulfuron, fluzosulfuron, fuoxazole, alkynyl ester, ethylcarboxyfluorfen, thiensulfuron, ditetradibuty, benzsulfuron, benzylsulfuron, azole ketazone, diflusulfam, diflusulfam, dimethyltetrachlor, etc., generally the weeds in the wheat field can be divided into broad-leaved grasses and grasses, and the appropriate herbicides can be selected according to different kinds of weeds.

Old Mamerit's wheat herbicide, trimethyltetrachloride adjuvant wheat herbicide. Wheat herbicides are mainly urea herbicides, such as benzuron, superstar, jujing, etc.

Ethylhexyl chlorofluoropyroxyacetate field Dimethyldisulfon-methyl, fluzosulfuron-methyl, dioxazole, oxazole, alkynyl ester, ethylcarboxyflufen, thiensulfuron, ditetrabutyl, diflusulam and dimethyltetrachloride, etc.

Foreword: Autumn and winter are good times for winter wheat sowing, but there are often some weeds growing in the wheat field, so how to weed the wheat? The most commonly used means is wheat herbicides, what are the types of wheat herbicides?

1. Classification of weedsThe use of wheat herbicides should also take into account the type of weeds in the wheat field. The weeds in the wheat field are mainly divided into broad-leaved grasses and grasses, and we can choose the right wheat herbicide for these two weeds, so as to achieve twice the result with half the effort.

2. According to the classification of weeds in wheat fields, the wheat herbicides used to beat broadleaf grass are: thiensulfuron, ditetradibutin, benzsulfuron-methyl, azolexone, pyroxam, diflusulfam, dimethyltetrachlor, etc. Among them, metsulfuron-methyl is very destructive, so it will cause a lot of chemical residues when weeding in wheat fields, so it is generally not used in North China.

The main wheat field herbicides used in gramineous grasses: dimethyldisulfuron, xoxazole and alkynyl esters.

3. Problems that should be paid attention to In addition to the wheat herbicides used in different weeds, there are also problems that need to be paid attention to. Farmers should choose the right time when choosing wheat herbicides, and generally wheat herbicides should be selected in the winter wheat seedling growth period or the next spring wheat growth period. Weeding during this time will give better results and will also reduce damage to the wheat.

Weeding wheat fields in winter, because the temperature in winter is low, so at this time, wheat herbicides will remain in the soil of wheat fields, and the time is still very long, so it is not conducive to the growth of wheat. On the eve of winter, weeding wheat can effectively avoid the effects of temperature. At this time, the temperature is more suitable, so it can play a good role as a wheat herbicide.

The choice of wheat herbicide for weeding also needs to consider the dosage, which can not only effectively reduce the cost but also ensure the normal growth of wheat.

Green melon, isoproturon, zolinolate and pyritoxam, acetochlor, etc., the herbicidal effect of these agents is very good.

I know of stem and leaf herbicides, soil treatment agents, contact herbicides, conductive herbicides, selective herbicides and biocidal herbicides.

There are many, such as shima, methyldisulfuron, zoline, fluzosulfuron, etc., but it is also necessary to spray appropriately according to the variety of grass.

For example, benzsulfuron, ethylcarboxyfluorfen, fluzosulfur, two or four drops of butylene, paraquat and other ingredients, and these are more common herbicides in life, the effect is particularly good, when spraying must choose the root.

In fact, many times, if we are good at observing, we will find that there are many growers around us, and in the process of organization, we will often encounter some problems, especially wheat zongzi, we all know that in fact, the north of our country is mainly based on wheat seeds, and they are also based on pasta in terms of diet, so wheat has been planted in a large area in the north. But in the process of planting, there will often be some weeds and the like, so many people will have such doubts, that is, do you know which ones are effective? on this issue.

For example, alkynyl or methyldisulfuron, let's take a closer look.

1 alkynyl ester

In fact, in our real life, many times we also have a certain understanding of wheat planting, we all know, in fact, it is generally seeds in the northern region of our country, and it is generally planted in winter. At the same time, it is sold. The use is also very wide, a lot of pasta in our life is made of wheat, but in the process of planting, his weeds are very many, so at this time people must play a certain herbicide, so as to get rid of these weeds, for example, we can use sheep grass juice, this effect is very good.

2 Methyldisulon-methyl

In fact, in our understanding, there are many types of these herbicides, for example, they have a certain effect on the roots, but we can't take these herbicides, the roots of soybean plants, because this will play a certain harmful role in the root spraying of plants, and even cause the plant to wither yellow. Then I personally understand, I think methyldisulfuron itself is also very good for wheat weedicide.

Therefore, in our daily life, we should also pay more attention to this aspect of the problem, for everyone. When we encounter this kind of similar thing in our lives, we can consult the relevant professionals.