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It will cause grass wilting, will also lead to the destruction of the root system, and will also leave a lot of pesticides, which is not conducive to the growth of crops, and will also lead to a large number of pesticide residues in the air, affecting the human respiratory tract.
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1.will cause other crops to be affected, 2will destroy the nutrients of the soil, 3It can also damage the root system of the plant, 4It is possible that there will be no way to grow in the future, 5There is no way to confirm the amount of results and other hazards.
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If this happens, it will pollute the land and the nearby water resources, which will also cause the yield of the crop to become lower and lower, and then it will also damage the environment, and the regeneration capacity will become slower.
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First of all, herbicides can easily harm crops, so when using herbicides, you must prescribe the right medicine, second, when using herbicides, you must wear a mask and arm yourself well to avoid poisoning, and thirdly, when using herbicides, you must dilute them.
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I run an agricultural material store, often farmers come to the store to say to buy a little more herbicide, in fact, herbicides are divided into many kinds, depending on the type of weeding and the speed of weeding time, choose different herbicides, so it can only be said that in the removal of a certain kind of grass is to choose the most suitable herbicide. Now I will be moved by people's faces, love, caress them, praise them, and nurture them.
<>But when the grass grows in the crops, the peasants will be burdened by it, and they will get rid of it, destroy it, kill it, hoe it, and then hurry up. You say, why is the gap in grass so big? Qingcao is bitter in his heart, but he is speechless, because it has a mouth.
The color tissue is absorbed and conducted to all the plants, and the weeds are killed by roots, which can kill the broad-leaved weeds and small shrubs such as Needle Grass, Nightshade, Water Peanut, White Clover, Pig Seedling, Dandelion, Dijin, Little Feipeng, Coriander, Quinoa, Xanthium and other broad-leaved weeds and small shrubs for about 5-10 days. Not to mention, even miscellaneous shrubs and bamboos can be killed by the roots, and the most powerful performance is not only that.
Spraying once can manage the tube without growing grass for a year, which is the most domineering. But don't use this kind of farmland! Farmland is used to see green pour, because it can be active chemical ingredients 3 to 4 days after sprinkling the medicine, and its use in the National Pesticide Supervision Commission has been strictly supervised.
Glyphosate is not directly related to genetically modified crops, non-genetically modified crops should be treated with herbicide glyphosate, generally speaking, after glyphosate is applied to grass cover plants, there will be grass cover in about 2-3 days, and there are a lot of grass covers, which can not be counted.
Now I have used herbicides, and I don't ask for anything. People not only weeding the benefits, but also deforestation first, if you want to shave your head in an instant, to be counted as the most beneficial to people, now also invented a logging machine, if you are unlucky, just look at the bald head on TV, I will say the most powerful herbicide. In the spring of 2110, there were a lot of small miscellaneous trees and thorns growing in my field, and I bought them from Monsanto"Roundup"Herbicide, 500 grams mixed with water 30 pounds of spray water for spraying, within a few days weeds and small tree mothers are thick and thick.
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Glyphosate is a non-selective, no residue herbicide, generally very effective for perennial root weeds, widely used in rubber, tea, mulberry, orchards and sugarcane fields, mainly inhibiting the enolacetone shikikin phosphate synthetase in plants, thereby inhibiting the conversion of shikimithin to phenylalanine, tyrosine and tryptophan.
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Glyphosate, paraquat and glufosinate ammonium are the three major herbicides. Glyphosate has been used for a long time in production, and many weeds such as Feipeng have developed strong resistance to the drug. The weeding speed of the medicine is relatively slow, but its systemic conductivity is very strong, it can be conducted to the underground part through the stems and leaves, and it can also be conducted between different tillers of the same plant, which can kill the weeds by roots, and has a strong destructive force on the underground tissues of perennial deep-rooted weeds, and can reach a depth that cannot be reached by ordinary agricultural machinery.
After glyphosate is put into the soil, it quickly combines with metal ions such as iron and aluminum in the soil and loses its activity.
Paraquat is a fast-acting contact herbicide that has a strong destructive effect on plant green tissues, and weed leaves begin to discolor 2 to 3 hours after treatment. The drug has no systemic conduction effect, can only damage the drug part, can not damage the plant roots and the seeds hidden in the soil, so the weeds have regeneration after application. Cannot penetrate embolized bark.
Once in contact with the soil, it is adsorbed and passivated. Paraquat is favored for its fast-acting, rain-resistant and cost-effective properties, but it is highly toxic and very harmful to humans and animals, and there is no specific antidote once poisoned.
Glufosinate-ammonium is a non-selective contact herbicide and an inhibitor of glutamine synthesis with partial systemic effect. In a short period of time after application, the ammonium metabolism in weeds was disordered, and the cytotoxic ammonium ions accumulated in the body, and at the same time, photosynthesis was seriously inhibited to achieve the purpose of weeding. It has a good weeding effect, a wide range of herbicidal spectrum, and a duration of up to 1 month, which can remove weeds that have developed strong resistance to paraquat and glyphosate, such as small flying peng.
It does not damage the soil structure and does not damage the root system of crops. After the drug is combined with the soil, it can be quickly decomposed by soil microorganisms, and it is safe to sow various crops after 1 day of application. As a new generation of fast-acting biocidal herbicide, glufosinate-ammonium has been highly recognized in production.
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Glyphosate + good additives improve the absorption, permeability and spreadability, and the rapid death of grass and roots is more complete. Glyphosate + high-efficiency flupyrethoxalin is a special effect on cow tendon grass, reed, and thatch.
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"Fool-type, all-dozen" herbicides are the best to use, without compounding, one medicine to remove all the grass. Personally, I recommend the "big straw hat" herbicide, pay attention to the proportion of potions. Just don't hit the crop. It works.
Wide spectrum of herbicidal: it can effectively control annual and perennial grasses, broad-leaved and sedge weeds, and has a good control effect on resistant weeds such as cow tendon grass, reed, fragrant aconite, small flying peng, arthropodium, li, white grass, etc.;
High safety: non-volatile, correct application has no effect on the surrounding crops, easy to decompose in the soil, short residual effect period, no impact on the crops;
Long duration of effect: in the normal season, spray evenly and thoroughly, and the grass control period can reach more than 60 days;
Easy to use: 100 grams of water for 15 kg, can control most of the common weeds, no need to compound other products, labor-saving, time-saving, labor-saving;
Low temperature resistance, rain erosion resistance: more than 10 can play a good role, 4 hours after the rain, does not affect the weeding effect.
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When herbicides are used, they do not contaminate the crop. It was found that the mixing effect of herbicide and ether was better, which could increase the synthesis rate of glyphosate. At the same time, it can also make up for some deficiencies of glyphosate, especially tendon grass for meat and Roundup:
It is a pre-seeded herbicide that is destructive. It contains glyphosate, which has a long-lasting effect, usually around 20 days. Try to avoid reseeding during the effective period.
Or spray a certain amount of antidote before sowing to ensure the safety of the Amperi crop and prevent damage caused by residues.
The control effect of glyphosate is not good, mixed use is a complementary advantage, the drug residue period is very long, it is best to plant and harvest one month after the use, suitable for the discharge place in front of the house and behind the house or temporarily without contact with herbicides, not in the plant, limited to the damage of the contact part. This local contact effect is enough to cause weeds to wilt and wilt, but it must be controlled, where there are many thick thumbs, fried brambles, and a variety of trees. I chose the isopropylamine Roundup glyphosate produced by Monsanto in the United States.
When sprayed in the morning at high temperatures, the leaves will wilt and turn yellow that day.
However, the thorn tree and all sorts of trees died within a week. Since then, the deep-fried thorns and various trees on this ridge have disappeared. When herbicides are used, they do not contaminate the crop.
It was found that the mixing effect of herbicide and ether was better, which could increase the synthesis rate of glyphosate. At the same time, it can also compensate for some of the deficiencies of glyphosate, especially tendon grass for meat and Roundup: it is a pre-sown herbicide that is destructive.
It contains glyphosate, which has a long-lasting effect, usually around 20 days.
Try to avoid reseeding during the effective period. Or spray a certain amount of antidote before sowing to ensure the safety of the Amperi crop and prevent damage caused by residues. The control effect of glyphosate is not good, mixed use is a complementary advantage, the drug residue period is very long, it is best to plant and harvest one month after the use, suitable for the discharge place in front of the house and behind the house or temporarily without contact with herbicides, not in the plant, limited to the damage of the contact part.
This local contact effect is enough to cause weeds to wilt and wilt, but it must be controlled.
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The good effects are: glufosinate, diquat, dimethyltetrachloride, glyphosate, etc., the effect of these herbicides is particularly good, and the reputation is also very good, and the speed is also very fast.
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Glyphosate, paraquat, glufosinate-ammonium, these herbicides are particularly effective, and the number of people who use them is also very large, after spraying, you can remove all the weeds on it, and it will not grow again.
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At this time, you can choose to kill the green, and then you can also choose glyphosate endophytic herbicides, or paraquat, which are better, and the effect is also very good, which can achieve the best effect.
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The effect is better, glyphosate, glufosinate-ammonium, diquat fast, acid drops, dimethyl, etc., these kinds of cost-effective are better, but they have their own advantages, so when using it, you can choose according to your own situation, and it will not cause too much pollution, or it is more environmentally friendly.
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Inhibits the growth of crops in the current seasonExperiments were conducted on wheat, corn, soybeans and cotton at normal dosages. The results show that basically all herbicides have one thing in common compared to manual weeding, and that is reduced yield.
Inhibiting crops for 7-15 days in the current season reduces yields by more than 10%. Under weak seedlings, inverted seedlings or increased dose conditions, the yield is reduced by 20-30%. The experiment of the plant protection station in Heilongjiang Province showed that the herbicide reduced the yield of corn, soybean and rice; Tests by the Henan Provincial Institute for Drug Control have shown that the herbicide has reduced the yield of wheat, soybean and corn; The test results of the Shandong Provincial Plant Protection Station showed that the herbicide *** reduced the corn yield by 16%.
Residues affect the development of subsequent crops:The basic principle of herbicides is to inhibit acetyllactate synthase (ALS) in plants, which affects the synthesis of branched-chain amino acids. Herbicides are the most lethal to weeds in protecting crops.
But weeds are related to cultivations. For example, wheat growing in a canola field is a weed during the same suitable growing season. After harvesting wheat, soybeans or corn are planted, and the regenerated wheat is also a weed.
Because of the time gap, there are many difficulties for herbicides.
Because herbicides are targeted, weeds are relative to planted crops. When the so-called "weed" becomes a planted crop, the herbicide that remains in the soil still does not let it go. If the herbicide used on a crop is meant to kill the crop, then the crop will be haunted by demons and will not be able to grow properly or even cause severe crop failures.
Food, soil and groundwater contamination:The herbicides we use are mainly organophosphorus, which can remain in the soil for more than 36 months. According to surveys, 20-70% of commonly used herbicides will remain in the soil for a long time, causing contamination of soil, groundwater and even food.
Contaminated crops can also affect health when they enter the human body through the food chain.
Causing the land to become "cancerous":The "cancerous" of the land is the image of what people call the "cancer field", which is neither likely to change the crop, with low yields or no harvest at all. In Heilongjiang, Inner Mongolia, Jilin and other northeastern regions, due to long-term overuse of herbicides, large areas of "cancer fields" have emerged.
Although no "cancer zone" has been found in the Central Plains, there is a need to prevent the cumulative effects of long-term herbicide use. Once"Cancer field"The formation of agricultural production will suffer significant losses.
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Inhibits the growth of crops in the current seasonUnder the normal dosage, experiments have been done on wheat, corn, soybeans, cotton, and other crops, and the results have found that basically all herbicides have ***, which is reduced compared with manual weeding.
Residues affect the development of crop stubble. The basis of the herbicide is to inhibit acetyllactate synthase (ALS) in plants to affect the synthesis of branched-chain amino acids.
Contamination of food, soil and groundwater. Because the chemical herbicides currently used are mainly organophosphorus, and the residual period of organophosphorus in the soil can generally be more than 36 months.
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A herbicide is a chemical used to control the growth of weeds and hail, and its hazards depend on the ingredients used and the way they are used. Some common herbicides, such as glyphosate, have attracted widespread controversy and attention. Here are the possible hazards of herbicides:
1.Ecosystem impacts: Herbicides can pollute soil and water bodies and disrupt the ecological balance.
They can remain in the soil and enter water bodies through infiltration into groundwater and runoff, causing harm to aquatic life. 2.Health Risks:
The composition of herbicides can pose a potential risk to human health. Certain ingredients, such as glyphosate, have been linked to cancer, reproductive problems, and neurological effects. 3.
Biodiversity loss: The use of herbicides can lead to the unbridled loss of plants on farmland or grasslands, causing damage to the habitats of insects, birds and other wildlife, which in turn affects entire ecosystems. 4.
Crop quality: Certain herbicides can have a negative impact on crops. If used incorrectly, it may remain in food and pose a risk to human health.
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