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Of course, if the wheat is in the seedling stage, spraying paraquat can easily kill the crop seedlings and affect the emergence rate.
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If you put paraquat in a wheat field, it will of course affect its emergence. And he is not easy to grow up, and he is easily damaged by drugs.
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If the wheat does not emerge, it is better, and paraquat is passivated in the soil.
If there are seedlings, they will directly kill the aboveground parts.
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Can paraquat be harvested in wheat fields during the miscanthus planting season, because there are many wild vegetables. Regardless of the number, as long as the wheat is ripe, it can be beaten a few days before the harvest. Wheat is not affected.
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Hello, if the wheat has just been planted and has not yet emerged, as long as it does not germinate, it will have no effectParaquatIt is not effective on plant roots and perennial underground stems and roots.
Wheat is a general term for wheat plants, is a grass plant widely cultivated around the world, wheat plays a vital role in the diet, but also an indispensable part, so when is wheat sown, planting needs to pay attention to what to pay attention to? Let's take a brief look at it today:
1. Apply plantar fertilizer
First of all, it is necessary to select excellent varieties, and on the basis of increasing organic fertilizer, stabilize nitrogen, increase phosphorus, supplement potassium and micro-fertilizer. Generally, 1000-2000 kg of organic fertilizer is applied per mu, and about 40 kg of formula fertilizer; Zinc sulfate.
1 kg, apply plantar fertilizer before land preparation, spread evenly, and turn deep in time.
Second, the land preparation and sowing
The quality of land preparation is directly related to the quality of sowing. The plots that are often sown by rotary tillage or no-tillage machine must be turned deep once (about 25 cm) for more than 3 years;
The bellflower that is directly returned to the field should be finely crushed, remove the broken straw that is too long, and return 1 mu of straw to the field.
2 acres, when preparing the land, the land should be raked and raked thoroughly, so that the depth of the cultivated layer is consistent, and the topsoil is finely broken, so as to achieve the standard of the upper and lower solid, no light and dark, and the ground is flat and has no root stubble.
After sowing, it is compacted with stone stone to protect moisture, so as to facilitate the emergence of wheat seedlings. Straw returning plots increase the amount of sowing by kilograms.
3. Top dressing outside the roots
In the later stage of wheat, the root absorption capacity is getting worse and worse, so foliar fertilization can be carried out in time at the flowering stage to promote plant health and enhance leaf photosynthesis.
To improve the disease resistance and dry and hot wind resistance of wheat, Haihewei potassium dihydrogen phosphate can be selected.
Zinc sulfate is applied on a foliar spray and again every 7 days.
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Paraquat is a potent herbicide, and no plant will ever grow a sock.
If you hit the wheat field, it will definitely affect the emergence of wheat seedlings, and there may not be a single seedling.
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If the past two days are the wheat seedling period, it should affect the seedling rate, so the recent laughter can not be used in the field of pure sowing to kill herbs.
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It depends on the amount of beating, if there is more, it will cause the wheat seedlings to wither, and will not emerge, if it is very little, it will not affect the emergence of seedlings.
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This degrading agent should not be applied before wheat sowing.
The sale and use of the herbicide in the country has been banned since July 2016.
Applicable crops. 1.Orchards, mulberry orchards, tea gardens, rubber gardens, forest belts are used
In the weeds are out of the qi and are in the vigorous growth period, use 100 to 200 ml of 20% water agent per mu, mix with 25 kg of water, evenly spray the weed stems and leaves, and when the weeds grow to more than 30cm, the dosage should be doubled.
2.Corn, sugarcane, soybean and other wide row crop fields: can be pre-sowing treatment or post-sowing pre-seedling treatment, can also be used in the middle and late stage of crop growth, protective directional spraying to control weeds between rows.
Pre-sowing or post-sowing seedling treatment, 75 to 200 ml of 20% water solution per mu, and 25 kg of water spray to control unearthed weeds. During the crop growth period, 100 to 200 ml of 20% water agent per mu, mixed with 25 kg of water, was used for protective directional spraying between rows.
3.Practical experience shows that the herbicide has no obvious effect on Rehmannia rehmannia.
Precautions: Do not move the liquid medicine to fruit trees or other crops when using, and the vegetable field must be used when there are no vegetables.
The spraying should be uniform and thoughtful, and laundry detergent can be added to the liquid medicine to improve the adhesion of the solution. 30 minutes after application, the effect of the drug can be basically guaranteed when it rains.
Features: the active ingredient has a strong destructive force on the chloroplast membrane, so that photosynthesis and chlorophyll synthesis are quickly stopped, and the leaf begins to be damaged and discolored 2 to 3 hours after the treatment, the herbicide has a strong destructive effect on the green tissue of monocots and dicots, and has a certain conduction effect to destroy the green plant tissue, but can not penetrate the embolized bark, and it is easy to be passivated after contacting the soil. It cannot destroy the roots of the plant and the seeds hidden in the soil, so the weeds regenerate after application.
The herbicide becomes inactive on contact with soil and is removed 1 to 2 days before sowing.
The leaves turn yellow 2 to 3 hours after treatment, and the whole plant dies 3 to 4 days;
The weeding effectiveness is related to the weather, and generally sunny days are better than cloudy days;
There is no systemic conduction.
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Currently, the production and sale of paraquat has been banned because there is no cure for its toxicity.
To remove weeds in wheat fields, the corresponding pre-emergence or post-emergence herbicides can be used.
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You can play, but you need to do it a few days in advance.
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Now paraquat has an effect on wheat.
Paraquat is a highly effective herbicide that has a contact and systemic effect, can be quickly absorbed and dead by plants, and is also known as "sweep away", which is extremely lethal to green plants.
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It should be played when there is no wheat, there is no effect, if it is planted with wheat and then sprayed, it will definitely affect the wheat.
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Paraquat is a herbicide and should be sprayed to see if the dose and extent of spraying can be restored, and if not, replant as soon as possible to reduce losses.
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Summary. Paraquat is a broad-spectrum herbicide that kills a wide range of weeds quickly and effectively. But it also has a certain ***, which raises concerns about its safety.
Studies have shown that paraquat can have a toxic effect on insects, adversely affect the formation and quality of flower inflorescences, and also affect the growth of rice to varying degrees. Therefore, when using paraquat medicine, you should pay attention to the method of use and dosage, and do not overdo it. At the same time, it is necessary to pay attention to the sputtering and dialysis of the agent during the treatment process to avoid causing harm to yourself and the environment.
Hello dear<>
Fields covered with paraquat can have an effect on maize.
Paraquat is a commonly used herbicide that can cause toxicity to microorganisms, plants and animals in the soil, thereby affecting soil quality. In addition, paraquat remains in the soil and can be absorbed into the plant, adversely affecting the growth and development of the crop.
Therefore, before planting corn, you should choose a ground agitation block with no residual dust and herbicides in the soil, or choose other herbicides to treat it to ensure the healthy growth of corn pies.
Paraquat is a broad-spectrum herbicide that kills a wide range of weeds quickly and effectively. But it also has a certain ***, which raises concerns about its safety. Studies have shown that paraquat can have a toxic effect on insects, adversely affect the formation of flower inflorescences and the slippery stuffiness of flowers, and also have varying degrees of effects on the growth of rice.
Therefore, when using paraquat medicine, you should pay attention to the method of use and dosage, and do not overdo it. At the same time, it is necessary to pay attention to the sputtering and dialysis of the agent during the treatment process to avoid causing damage to itself and the environment. <>
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This herbicide cannot be applied.
This herbicide is forbidden to be used in the country.
Wheat cultivation techniques.
Farming and land preparation.
The land preparation of dryland wheat should be based on the basis of increasing the deep ploughing layer year by year, combined with the application of organic fertilizer, and improving the retention and storage of water and fertilizer, and the land preparation should be carried out according to different multiple cropping forms. That is, the previous harvest is earlier, such as spring corn, sorghum, tobacco, etc., the harvest should first be shallow tillage to eliminate stubble, and then deep ploughing of the kang soil, so that the residue rots and accepts the autumn rain, shallow rake after the rain, reduce evaporation; The other category, such as sweet potato, cotton, etc., has a tight harvest time, and if the conventional method is used, it is bound to delay the sowing date, which is one of the important reasons for the low yield of wheat in southwest China. Therefore, on the one hand, the implementation of loosening soil and moisture between the rows in the previous crop and later period, and then plowing and leveling when planting wheat; On the other hand, it advocates continuous operations such as digging potatoes, leveling the ground, fertilizing, and sowing to ensure that wheat is sown in a timely manner.
High-yield technology. 1. Pay attention to the selection of high-fertilizer and water plots. High-yield and high-quality wheat varieties require that soil nutrients must be comprehensive and sufficient to meet the needs of high-yield cultivation, so it is advisable to choose plots with high soil fertility and good watering conditions, increase organic fertilizer, and adopt formula fertilization technology.
2. Pay attention to late sowing at the appropriate time, and determine the appropriate basic seedlings according to the characteristics of the variety. It is necessary to prevent excessive sowing volume, resulting in passive post-management.
3. Pay attention to prevent lodging and reapply jointing fertilizer. Some of the promoted high-quality wheat varieties are not resistant to lodging, especially for wheat fields with too large groups, a chemical control treatment must be carried out before returning to green to jointing, and paclobutrazol or wheat yefeng can be sprayed. It is necessary to reapply jointing fertilizer to control the formation of excess falling ears and promote large ears and more grains.
4. Pay attention to watering grouting water, wheat yellow water, and spraying foliar fertilizer to prevent premature aging. Watering grouting water plays an important role in increasing granularity weight and preventing dry and hot air. In dry weather, the use of wheat water is conducive to intercropping and preventing premature aging.
In the first half of May, combined with the prevention and control of pests and diseases, spray 2 to 3 times of foliar fertilizer, such as potassium dihydrogen phosphate, which can reduce the harm of dry and hot air and increase yield.
5. Pay attention to the prevention and control of pests and diseases. Generally speaking, high-quality wheat is more susceptible to pests and diseases, such as wheat sheath blight and powdery mildew, and aphids occur earlier and heavier than conventional varieties. It should be prevented and treated as soon as possible according to the forecast.
6. Spray wheat treasure once when the wheat is just broken and about 60% to 70% before heading and flowering, so as to activate the biological enzyme activity in wheat, promote coordinated growth, enhance the photosynthesis of functional leaves, significantly reduce the empty straw rate, improve the seed setting rate and 1000-grain weight, so as to achieve the effect of increasing yield.
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