How to remedy the symptoms of herbicide damage in crops?

Washing method. When the dosage of systemic herbicides such as herbicides is too large and causes pesticide damage, it should be immediately rinsed with water or sprayed to wash off the unabsorbed liquid on the crop and reduce the continued harm of the residual liquid to the crop. Generally, after washing 3 times, the town sees new leaves, and the lost green leaves begin to color, and the town recovers in 7 to 10 days.

Rinse with water. A clean sprayer can be used to infuse clean water and spray on medicated-treated plants several times in succession to remove or reduce herbicide residues on crops. It can also be sprayed with quicklime and sodium carbonate diluted water, which has a good effect on eliminating pesticide damage.

Precautionary measures. Proper selection and use of herbicides is key. Adjust the dosage and correctly grasp the use period.

Adjust the sprayer, spray evenly, and clean the sprayer thoroughly after spraying. After the application of long-term residual herbicides, the crop should be reasonably arranged. Rescue measures.

Herbicide pesticide damage should be treated differently, some pesticide damage does not affect the yield, and will disappear naturally with the growth of crops, for example, after the use of wild swallow wilt, wheat leaves turn yellow, and then the natural recovery; Some pesticide damage has caused a decline in output, and rescue measures should be taken in time.

Abnormal environmental conditions in production, such as freezing, high temperature, drought, hot air, etc., are similar to herbicide symptoms. The symptoms of leaf damage caused by top dressing are similar to those of contact herbicides. Nutrient deficiencies, pollution and over-fertilization, especially polluted deficiencies, sulphur dioxide, ozone, C12 and herbicides cause mesophyll greening.

Soil-borne diseases are similar to herbicide damage from some pre-emergence soil treatments. Deformed leaves caused by viral diseases and pathogenic bacterial infections are similar to leaf deformities caused by phenoxycarboxylic acids and soil treatment amides and carbamate sulfide herbicides. After the occurrence of drug damage, it should be observed from multiple angles and angles to avoid misdiagnosis.

The problem with herbicide sprayers that are not cleaned and cause pesticide damage is that herbicide drift is very common for non-target crops. 24-D butyl ester is the most widely used weeding variety in wheat field, because of its strong volatility, large drift and strong residue, it is easy to drift and harm nearby sensitive crops such as cotton, beans, vegetables and fruit trees when controlling weeds in wheat field. If the sprayer is not cleaned thoroughly, herbicide damage can also occur when other insecticides are loaded to control the above-mentioned crop pests and diseases.

Some herbicides have no effect on crops, while residual herbicides tend to harm crops. For example, the use of simazine in corn fields is more effective in weed control, if the seeds emerge slowly, the root tip sprout sheath and other parts will turn brown or rot when planting rapeseed in the next crop, which will have a great impact on the yield. Wheat grass spraying is non-pesticide harmful, and young roots will be hypertrophied and rotten after planting summer peanut stubble, and gradually die after yellowing, and the yield will be seriously reduced.

Field irrigation water should be drained immediately, flushed with new water several times, and neutralizing acidic herbicides such as lime should be applied. There is also a mechanical water spray irrigation that can be used to reduce the poison sticking to the leaves.

Crops should be watered so that the herbicide can be diluted, so that the damage to the crops will be less.

Crop damage caused by herbicides should be discontinued, as stopping the use of herbicides can prevent further damage.

How to remedy the symptoms of herbicide damage in crops?

1.Strengthen fertilizer and water management, top application of fast-acting fertilizer and watering. Promote early onset and rapid growth of seedlings, and enhance the resistance of Yuwu to Chinese rice.

2.The application of micro-fertilizer and plant growth regulator to promote growth. 3.

Apply herbicide antidotes. 4.If the damage is too severe, replanting, replanting or destroying the seeds should be considered to avoid serious yield reduction or extinction.

How to prevent and control the pesticide damage caused by herbicides? When stems and plant leaves are damaged by herbicides, a sprayer can be quickly used to continuously spray the affected plants with a watery herbicide. It inhibits photosynthesis, which is mainly absorbed by the roots of plants, transmitted to the ground, and active in the presence of light.

The symptoms of product damage are similar to those of triazine, first with yellowing of the leaf tips and leaf tips, followed by two to three FIMs to eliminate or reduce the relative safety of plant amine herbicides for crops.

Due to excessive dosage or environmental conditions without herbicides, after the herbicide appears, sufficient irrigation should be carried out to reduce the concentration of herbicides in the crop, play a role in alleviation, and timely apply fertilizer, spray plant growth regulators, play a role in promoting the recovery of growth, and appropriate cultivation and pine stability, corresponding measures should be taken in different situations. Treatment method: After sowing, the herbicide alkali damage occurs, and the nature of the herbicide itself.

For example, security.

The above measures are specific measures to prevent herbicide damage, pesticides are not easy to maintain after ground spraying, and will basically not produce drug damage at the next harvest, and pre-sowing herbicides are not suitable for crops with underground rhizomes as income, but herbicides with stems and leaves as productive and easily degradable substances, such as imidazole ethyl niacin and chlorsulfuronmethyl and other long-term residual herbicides cause damage to sensitive crops at low residue concentrations; Overuse, misuse and mixing of herbicides and poor selection of additives can cause harm to drugs; The application deadline is incorrect.

Once the herbicide is applied, the drug is compromised. In the case of herbicide damage, we need to take a different approach. We have taken a look at the common treatment methods for relieving herb damage when it occurs.

When white spots appear on the leaves, it provides an important guarantee for the development of seed planting. But sometimes herbicides can cause significant damage to crops. What causes damage from herbicides?

How herbicides harm the leaves and turn white on top of the real leaves. Average and loose soil. According to the growing season, the number of tillage and soil loosening should be appropriately increased.

How to prevent herbicide damage? There are many types of herbicides available in the market, with different ingredients and dosage forms. In addition, some manufacturers also have high production levels, and the herbicides used for different crops will also be different.

For example, how to remedy common field crops, such as herbicide pesticide damage? When herbicide damage has occurred in the wheat field, the toxic irrigation water in the field should be drained immediately, and at the same time flushed with fresh water, lime can also be added to the irrigation water to medium wheat, corn, soybean and rice, herbicides may not be used together.

In addition to selective herbicides, some herbicides if they are inadvertently low in content, there are many types of herbicides available on the market with different ingredients and dosage forms. In addition, some manufacturers have varying levels of production. Some herbicides are susceptible to drug damage at low temperatures.

Taking the Manual of Functional Directives for the Prevention of Herbicide Damage as an example, the factors and measures to prevent herbicide damage are described: poor storage, mismarketing and misuse of USO.

In low-temperature CASO, it is important to read the label carefully before using the herbicide, and to clarify the applicable crop, the period of use and appropriate methods, the object of control, the safe dosage and precautions for the herbicide, in order to avoid incorrect use of the drug or excessive susceptibility to drug damage, for example, the wheat weed herbicide has a prescribed dosage. Prevention method: Strictly control the dosage and concentration of herbicides, and correct use is the key to preventing herbicide harm.

Read the label carefully before using herbicides and avoid improper use, excessive dosage, cycle and method of use, which are often the main cause of product injury. Herbicides do not act excessively unless authorized as required by this manual.

For example, the use of a butachlor herbicide in paddy fields in different regions and under different conditions after planting can also cause damage to the drug. Improving herbicide use techniques and preventing drug-induced damage have become major problems in the use of chemical weeds in agriculture. How to prevent herbicides from causing damage to suitable crops, duration of use and appropriate methods, objects of control, safe dosage and precautions.

<> strictly abide by the instructions for the use of herbicides and the control objects and precautions. Do not change the crops used at will, and do not increase the concentration of herbicides at will. Many farmers use insecticides and fungicides to increase the dosage, but herbicides should be used with caution and do not increase the dosage at will.

Regular herbicides will have a guide dosage, we must apply according to the guide dosage, do not increase the dosage without authorization. Paddy field pesticide damage is most likely to occur, and during the two blocking periods, the amount of sealing drugs is basically too large before insertion. The concentration of the residual agent after transplanting after the transplanting of the sealing agent before transplanting will not affect the regreening and growth of the seedlings after normal use.

When this happens, we need to drain the water many times and dry the field lightly to reduce the residue of the agent, and there will be no problem when the seedlings return to green.

The herbicides used in different crops will be different, for example, wheat, corn, soybeans, rice and other common field crops, herbicides can not be used with each other, in addition to selective herbicides, if accidentally sprayed with biocidal herbicides, such as glyphosate, glufosinate, etc., serious pesticide damage will occur.

The concentration of the agent is on the high side. Insufficient water consumption, re-spraying, or uneven mixing of agents, or large dosage, or mixed with many varieties of drugs or improper mixing, large concentration of liquid medicine, will be caused. Improper selection of agents.

For example, wheat is sprayed with sema, quinoxalin is sprayed with cowpea, and corn herbicide is sprayed with rice. According to the description of the herbicide product used, strictly control the dosage. The herbicide product used is used within the range of its requirements according to the suitable period of use and the required environmental conditions.

Post-emergence weeding. After the corn is unearthed, there are weeds in some plots, which require the use of post-emergence herbicides. Although post-emergence herbicides do not have much effect on seedlings, they are poisonous in three parts, and try to avoid corn seedlings during the spraying process.

Aim the sprinkler head at the grass and spray. The same herbicide, can not use the same effect, farming is not easy, learn more and calculate less, it is not easy to sell agricultural materials, learn more to reason, life is not easy, and do and cherish, do not find seeds when the crop has problems, pesticides and fertilizers, weather and use methods are the most important.

First of all, we need to pay attention to the concentration of herbicides. When mixing water, according to his needs, the second is to pay attention to the drifting of herbicides, we have to write with a special sprayer.

In the process of agricultural planting, the use of herbicides is very extensive, but we must wash them repeatedly when we use them. Removal of pesticide residues.

First of all, the herbicide should be strictly proportioned, and then the scope should be paid attention to when spraying, and the time and frequency should be controlled at the same time, so as to avoid it.

You can use herbicide after rain and then add water to prevent serious damage to the herbicide.

You can do a good job of prevention, and at the same time pay attention to the amount of herbicide, choose the appropriate spraying time, and do not contact with **.

First of all, to ensure the fertility of the soil, we must pay attention to the pH of the soil, and we must pay attention to the fertilizer of the soil, and we should also pay attention to the control of light time, humidity and temperature and soil, and then we also need to choose the right herbicide.