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If you can detect it immediately, it can still be mitigated. If it is found that there is a fertilizer damage in the case of sprayingAt this time, it is necessary to choose a new medicine barrel, and it is necessary to ensure that the sprayer is clean and tidy. After that, fill it with water and spray it several times according to the original spraying method.
This benefit is that the herbicide can be rinsed off the leaves, so that it can have the effect of diluent and reduce the occurrence of fertilizer damage.
If it is these dwarf anvil plants, such as peanut kernels, garlic, etc., this crop can be directly used to carry out infiltration irrigation with floodwater, so that the herbicide can be rinsed, because the water flow is more, the content of the drug will also be diluted, so that the fertilizer damage can be reduced, and the natural water can not be in the field for too long, otherwise it will cause secondary damage due to water storage. Herbicides are divided into naphthalene acetic acid, carbohydrate retarder, ester retarder, seedling growth and development retarder, plant photosynthesis retarder, cytoplasmic influence, melanin retarder, etc.
Different types of traditional Chinese medicine preparations cause different principles of fertilizer, so the fertilizer diseases caused are also different, and the measures taken are completely different. Naphthalene acetic acid herbicides act on several positions of green plants, affecting the balance of growth hormone and protein synthesis, thus causing a variety of growth and development malformations of green plants. Carbohydrate production retardant fertilizer.
The petioles lose green or turn bluish-purple. The growth and development of bract plants are hindered, which is mainly manifested in the inhibition of roots, such as the significant reduction of root whiskers, the inability of corn leaves to be carried out, and the loss of green to transparent color.
Sun-loving plants are stunted and turn yellow or purple. The main manifestations of soybean damage were stunted growth and development or atrophy of growth and development. Soybean leaves turn yellow, petioles turn red or purple.
Fertilizer damage caused by the application of herbicides, if saved immediately, can save the vast majority of damage. If you have just sprayed for a long time, you can wash it with tap water first, and then spray it with brassinin or Bihu to reduce the damage of herbicides.
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At this time, it is necessary to fertilize properly, and to water more, so that the water can dilute the toxicity of these drugs, you can also spray some antidotes, the temperature should also be appropriate, if the plant is very seriously damaged, it should be replanted in time.
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Strengthen fertilizer and water management, use fast-acting fertilizer and watering at any time, use micro fertilizer, plant growth regulators to promote growth, apply herbicide antidotes, and can also consider replanting.
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At this time, you should water more, you should turn the soil frequently, and you can add quicklime to the soil to dilute the herbicide.
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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.
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<> 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.
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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.
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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.
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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.
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You can use herbicide after rain and then add water to prevent serious damage to the herbicide.
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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 **.
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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.
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Weeds compete with crops not only for water, fertilizer, and nutrients in the subsoil, but also for the space, heat, light, and other resources needed for soil growth. As we all know, brassinol is a plant growth regulator that can rapidly improve the quality of agricultural products and greatly increase crop yields.
Glyphosate has a strong internal absorption conductivity. By inhibiting the phosphate structure in plants, protein synthesis is severely disturbed, leading to drug damage in cultures. Methampheliurea is relatively stable and has a long-term residual effect, which directly affects the planting of subsequent sensitive crops.
After the application of brassinate, the internal hormonal action of the culture can be harmonized, the metabolism can be promoted, the function of amino acid synthesis can be restored, and the normal growth can be restored.
<> herbicide drops24 are safe for wheat, barley, corn and sorghum, but very sensitive to dicots and cotton. After spraying 24 drops on cotton plants and leaves, they pass through the stratum corneum and cell membranes and are finally delivered to the site, which has different effects on the synthesis of nucleic acids and proteins at different sites. The application of brassinol can not only reduce the absorption of herbicides in plants, but also increase the chlorine content in plants, so as to achieve a better effect of mitigating herbicide damage.
The effect of taking the medicine in the afternoon is better than in the morning, because the humidity in the field is still high when the spray is sprayed in the morning, and the medicine on the leaves easily condenses into water droplets. In addition, as the temperature continues to rise in the morning, all weeds are relatively dry in the afternoon after exposure in the morning and noon. Spraying herbicides at this time allows the weeds to absorb the liquid drug more quickly, so the herbicide can act as a stronger herbicide.
It is more advisable to dry the dew on the leaves at 9-10 a.m. or before the leaves set at 4-6 p.m., so that weeds can have more contact with and absorb the solution. When herbicides are used for weeds in chemical fields, the length of herbicide spraying time directly affects the effect of sprayed weeds. When weeds germinate, we can spray herbicides in the field, and the drug activity and herbicides will be greatly reduced due to long-term degradation of the drug.
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After such a situation, you can rinse with water, and then you can also spray the diseased location several times in a row, and then you also need to strengthen photosynthesis, and you should pay attention to supplementing fertilizer, and then you also need to kill insects in time.
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You can add more soil or add more water, which can play a certain role in dilution, or add some other chemicals, which can also be relieved and remedied.
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You can understand the way to remedy, and at the same time, you can reduce the harm by alleviating the dosage of the agent, and you can spray more water to remove part of the agent.
1. The principle and principle of removing herbicide pesticide damage: The pesticide damage of herbicides to crops is mostly manifested in inhibiting crop growth and making them lack nutrition. >>>More
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If you realize the problem soon after applying the pesticide, you can rinse it with water. That is, use a sprayer to spray water directly on the rice seedlings. At the same time, it is necessary to drain the water in the paddy fields in time and re-irrigate the fresh water.
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.
Herbicide damage refers to a series of abnormal phenomena caused by the inappropriate application of herbicides and the stunting of the normal physiological function or growth and development of crops. Acute drug damage has obvious symptoms in a few hours to 3 4 days after spraying, and it develops rapidly, such as burns, perforations, wilting, falling leaves, falling flowers, falling fruits, etc. Chronic pesticide damage caused obvious reactions after spraying for a long time, showing poor growth, leaf deformity, greening and yellowing, delayed ripening, poor flavor, and dissatisfied grains.